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Barmashenko BD, Rosenwaks S. Modeling of flowing gas diode pumped alkali lasers: dependence of the operation on the gas velocity and on the nature of the buffer gas. Opt Lett 2012; 37:3615-3617. [PMID: 22940967 DOI: 10.1364/ol.37.003615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A simple, semi-analytical model of flowing gas diode pumped alkali lasers (DPALs) is presented. The model takes into account the rise of temperature in the lasing medium with increasing pump power, resulting in decreasing pump absorption and slope efficiency. The model predicts the dependence of power on the flow velocity in flowing gas DPALs and checks the effect of using a buffer gas with high molar heat capacity and large relaxation rate constant between the 2P3/2 and 2P1/2 fine-structure levels of the alkali atom. It is found that the power strongly increases with flow velocity and that by replacing, e.g., ethane by propane as a buffer gas the power may be further increased by up to 30%. Eight kilowatt is achievable for 20 kW pump at flow velocity of 20 m/s.
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Affiliation(s)
- B D Barmashenko
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
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Affiliation(s)
- I. Bar
- a Department of Physics , Ben-Gurion University of the Negev , Beer-Sheva , Israel
| | - S. Rosenwaks
- a Department of Physics , Ben-Gurion University of the Negev , Beer-Sheva , Israel
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Abstract
The recently suggested mechanism of I(2) dissociation in the chemical oxygen-iodine laser (COIL) [K. Waichman, B. D. Barmashenko, and S. Rosenwaks, J. Appl. Phys. 106, 063108 (2009); and J. Chem. Phys. 133, 084301 (2010)] was largely based on the suggestion of V. N. Azyazov, S. Yu. Pichugin, and M. C. Heaven [J. Chem. Phys. 130, 104306 (2009)] that the vibrational population of O(2)(a) produced in the chemical generator is high enough to play an essential role in the dissociation. The results of model calculations based on this mechanism agreed very well with measurements of the small signal gain g, I(2) dissociation fraction F, and temperature T in the COIL. This mechanism is here revisited, following the recent experiments of M. V. Zagidullin [Quantum Electron. 40, 794 (2010)] where the observed low population of O(2)(b, v = 1) led to the conclusion that the vibrational population of O(2)(a) at the outlet of the generator is close to thermal equilibrium value. This value corresponds to a very small probability, ∼0.05, of O(2)(a) energy pooling to the states O(2)(X,a,b, v > 0). We show that the dissociation mechanism can reproduce the experimentally observed values of g, F, and T in the COIL only if most of the energy released in the processes of O(2)(a) energy pooling and O(2)(b) quenching by H(2)O ends up as vibrational energy of the products, O(2)(X,a,b), where the vibrational states v = 2 and 3 are significantly populated. We discuss possible reasons for the differences in the suggested vibrational population and explain how these differences can be reconciled.
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Affiliation(s)
- K Waichman
- Physics Department, NRCN, P.O. Box 9001 Beer Sheva 89140, Israel
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Waichman K, Barmashenko BD, Rosenwaks S. Comparing modeling and measurements of the output power in chemical oxygen-iodine lasers: A stringent test of I2 dissociation mechanisms. J Chem Phys 2010; 133:084301. [DOI: 10.1063/1.3480397] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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August J, Brouard M, Docker MP, Milne CJ, Simons JP, Lavi R, Rosenwaks S, Schwartz-Lavi D. Photodissociation dynamics of tert-butyl nitrite (S2) and tert-butyl hydroperoxide at 248-250 nm. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100330a030] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lavi R, Schwartz-Lavi D, Bar I, Rosenwaks S. Directional properties in photodissociation: a probe for the symmetry and geometry of excited states of dimethylnitrosamine and tert-butyl nitrite. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100305a004] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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David D, Bar I, Rosenwaks S. Doppler polarization spectroscopy of the photofragments from an in-plane rotation of water: demonstration of unperturbed vector correlations. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100147a001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Singh JP, Bachar J, Setser DW, Rosenwaks S. Electronic-to-vibrational energy-transfer studies of singlet molecular oxygen. 1. O2(a1.DELTA.g). ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100271a008] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Melchior A, Chen X, Bar I, Rosenwaks S. Vibrationally excited states of CH3CFCl2: Intramolecular vibrational redistribution and photodissociation dynamics. J Chem Phys 2000. [DOI: 10.1063/1.481752] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chen X, Melchior A, Bar I, Rosenwaks S. Overtone spectroscopy of methyl C–H stretch vibration in CH3CF2Cl and CH3CFCl2. J Chem Phys 2000. [DOI: 10.1063/1.480959] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Chen X, Ganot Y, Bar I, Rosenwaks S. Acetylenic C–H and methyl C–D bond fission in photodissociation of vibrationally excited propyne-d[sub 3]. J Chem Phys 2000. [DOI: 10.1063/1.1312282] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Melchior A, Chen X, Bar I, Rosenwaks S. Alteration of Cl spin–orbit branching ratios via photodissociation of pre-excited fundamental CH3 stretch of CH3CFCl2. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)01232-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shu J, Bar I, Rosenwaks S. Dinitrobenzene detection by use of one-color laser photolysis and laser-induced fluorescence of vibrationally excited NO. Appl Opt 1999; 38:4705-4710. [PMID: 18323958 DOI: 10.1364/ao.38.004705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Trace concentrations of 1, 4-dinitrobenzene (DNB) are detected by a combination of laser photolysis and laser-induced fluorescence. A one-color laser is applied to induce DNB photodissociation and for subsequent detection of NO photofragments by excitation and emission through A(v' =0) <-- X(v" = 0 - 2) and A(v' =0) --> X(v" = 0,1) transitions, respectively. The resulting NO rovibrational excitation spectra serve as markers for the presence of DNB. The NO is produced in vibrational ground and excited states with peak height ratios of (v" = 0):(v" = 1):(v" = 2) = 1:0.5:0.13. The limits of detection of DNB mixed with 100 or 500 Torr of air with v" = 2 excitation at 248 nm are 13 and 11 parts in 10(9) by weight, respectively, for a 30-s integration time. The application of this scheme for DNB detection has the advantage that no ambient ground state NO interferes and that the fluorescence is collected at shorter wavelengths than the exciting radiation, precluding background fluorescence.
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Affiliation(s)
- J Shu
- Department of Physics, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
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Schmid R, Ganot Y, Rosenwaks S, Bar I. Action spectra vs rovibrational absorption spectra: a tool for photodissociation dynamics investigation. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(98)00632-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Schmid RP, Ganot Y, Bar I, Rosenwaks S. Combination bands versus overtone stretch excitation and rotational effects in vibrationally mediated photodissociation of acetylene. J Chem Phys 1998. [DOI: 10.1063/1.477567] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Melchior A, Bar I, Rosenwaks S. CHF2Cl and CH3CF2Cl Detection by Coherent Anti-Stokes Raman Scattering and Photoacoustic Raman Spectroscopy. J Phys Chem A 1998. [DOI: 10.1021/jp982311q] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Melchior
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - I. Bar
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - S. Rosenwaks
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Abstract
A model is developed that describes the power extraction in chemical oxygen-iodine lasers (COIL's) and CO(2) gasdynamic lasers with stable resonators when a large number of transverse Hermite-Gaussian eigenmodes oscillate. The extraction efficiency, mode intensities, and intensity distribution along the flow depend only on two parameters. The first is the ratio gamma(0) of the residence time of the gas in the resonator to the O(2)((1)D) or N(2)(v) energy extraction time and the second is the ratio of the threshold to the small-signal gain. The efficiency is maximum for gamma(0) ? infinity and decreases rapidly as gamma(0) decreases. It is found that for a range of parameters corresponding to the highest efficiencies the intensity distribution along the flow is nonuniform and has two peaks near the upstream and downstream sections of the resonator. In this case only the highest-order modes that totally fill the resonator cross section oscillate (the so-called, experimentally observed sugar scooping bimodal intensity distribution). For the range of parameters corresponding to smaller efficiencies the intensity is uniform. In this case all the modes participate in lasing; however, the intensities of the high-order modes are larger than those of the low order. The current model is compared with the plane-mirror Fabry-Perot resonator model and with the constant intraresonator intensity and rooftop models of COIL's with stable resonators. The extraction efficiency calculated with the last two models is close to that estimated from our model. However, the intensity distribution cannot be calculated correctly using the Fabry-Perot, the constant intraresonator intensity, or the rooftop model.
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Assor Y, Burshtein Z, Rosenwaks S. Spectroscopy and laser characteristics of copper-vapor-laser pumped pyrromethene-556 and pyrromethene-567 dye solutions. Appl Opt 1998; 37:4914-4920. [PMID: 18285957 DOI: 10.1364/ao.37.004914] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We measured the basic optical properties of Pyrromethene-567 (P567) and Pyrromethene-556 (P556) dye solutions that are relevant to their application as dye lasers. The fluorescence spectra of methanol solutions show mirror images in relation to the absorption spectra, with Stokes shifts of 29.5 and 37.5 nm, respectively, for the two dyes. The central fluorescence peaks were at 546 and 535 nm, with widths of ~40 and ~50 nm (FWHM). The quantum yields were 97% ? 5% and 78% ? 5% for P567 and P556, respectively. Fluorescence lifetimes of 6.0 ? 0.2 ns were obtained for both dyes in methanol. Laser action, obtained by pumping with the green emission line (510.6 nm) from a copper-vapor laser, was measured in a Hänsch-type cavity. Tunability ranged from 531 to 590 nm for P567 and from 522 to 590 nm for P556. Lasing thresholds were ~0.27 and ~0.16 mJ/pulse, with 25% and 27% slope efficiencies for P567 and P556, respectively. Spectroscopy and lasing were studied in other solvents as well.
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Arusi-Parpar T, Schmid R, Ganot Y, Bar I, Rosenwaks S. Enhanced action spectra of combination bands of acetylene via vibrationally mediated photodissociation and fragment ionization. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(97)01452-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schmid RP, Arusi-Parpar T, Li RJ, Bar I, Rosenwaks S. Photodissociation of rovibrationally excited C2H2: Observation of two pathways. J Chem Phys 1997. [DOI: 10.1063/1.474399] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Barmashenko BD, Rosenwaks S. Analysis of the optical extraction efficiency in gas-flow lasers with different types of resonator. Appl Opt 1996; 35:7091-7101. [PMID: 21151313 DOI: 10.1364/ao.35.007091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The celebrated Rigrod model [J. Appl. Phys. 34, 2602 (1963)] has recently been shown to be inadequate for calculating the output power of gas-flow lasers when the quenching of excited species is slow and the optical extraction efficiency is high [Opt. Lett. 20, 1480 (1995)]. The previous analysis of two-level systems is presented here in detail and extended to include the chemical oxygen-iodine laser (COIL). For both two-level systems and COIL's, we obtained simple analytic formulas for the output power, which should be used instead of the Rigrod model. We present the formulas for Fabry-Perot, stable, and unstable resonators. Both the saturation parameter and the extraction efficiency differ from those appearing in the Rigrod model. The highest extraction efficiency is achievable for both stable and unstable resonators with uniform intensity distribution over the resonator cross section and is greater than that calculated by the Rigrod model. A rather surprising conclusion is that the extraction efficiency of unstable resonators can be increased substantially if one increases the length of the part of the mirrors lying downstream of the optical axis. The derived formulas are applied to describe published experimental results of supersonic COIL's. The dependence of the power on the threshold gain is evaluated and from this the plenum yield of singlet oxygen is estimated. The value of the yield is in better agreement with experimental measurements than that obtained by the Rigrod model.
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Abstract
The (2,0,1) <-- (0,0,0) rovibrational transitions of D2O in the near infrared region were measured with a resolution of 0.07 cm-1 using photoacoustic laser absorption spectroscopy. We report on the assignment of newly observed transitions and determine new inertial and centrifugal constants of D2O (2,0,1) using the Watson-type A-reduced Hamiltonian for asymmetric tops.
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Affiliation(s)
- Y Cohen
- Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
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Laurent T, Lillich H, Volpp HR, Wolfrum J, Bar I, Melchior A, Rosenwaks S. State-resolved dynamics of the O(1D) + CHF2Cl → OH + CF2Cl reaction. Chem Phys Lett 1995. [DOI: 10.1016/s0009-2614(95)01230-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Barmashenko BD, Rosenwaks S. Optical extraction efficiency in gas-flow lasers. Opt Lett 1995; 20:1480-1482. [PMID: 19862055 DOI: 10.1364/ol.20.001480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
It is shown that the celebrated Rigrod model [J. Appl. Phys. 34, 2602 (1963)] is inadequate for calculating the output power of gas-f low lasers in an important range of parameters in which the quenching of the excited species is slow and the optical extraction eff iciency is high. For two-level systems very simple analytical formulas for the output power are obtained that should be used instead of the Rigrod model. The formulas are given for Fabry-Perot, stable, and unstable resonators. Both the saturation parameter and the extraction efficiency differ from those appearing in the Rigrod model. Applications of the formulas to systems with more complex kinetic schemes are also indicated.
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David D, Bar I, Rosenwaks S. Control of fragment alignment via photodissociation from different types of parent rotation. J Chem Phys 1993. [DOI: 10.1063/1.466190] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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David D, Strugano A, Bar I, Rosenwaks S. State‐to‐state photodissociation of the fundamental symmetric stretch vibration of water prepared by stimulated Raman excitation. J Chem Phys 1993. [DOI: 10.1063/1.464634] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Oreg J, Bergmann K, Shore BW, Rosenwaks S. Population transfer with delayed pulses in four-state systems. Phys Rev A 1992; 45:4888-4896. [PMID: 9907571 DOI: 10.1103/physreva.45.4888] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Linton C, Bacis R, Martin F, Rosenwaks S, Vergès J. Vibrational analysis of the X2(3/2)–X1(1/2) infrared system of BiO. J Chem Phys 1992. [DOI: 10.1063/1.461944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bar I, Cohen Y, David D, Arusi‐Parpar T, Rosenwaks S, Valentini JJ. Mode‐selective bond fission: Comparison between the photodissociation of HOD (0,0,1) and HOD (1,0,0). J Chem Phys 1991. [DOI: 10.1063/1.460839] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Martin F, Bacis R, Linton C, Vergès J, Mayo I, Rosenwaks S. Kinetics and spectroscopy of electronically excited BiO obtained by energy transfer from metastable O2. II. Spectroscopic analysis of the A (2Π1/2)–X1(2Π1/2) transition. J Chem Phys 1991. [DOI: 10.1063/1.461482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mayo I, Bachar J, Rosenwaks S, Martin F, Bacis R, Verges J. Kinetics and spectroscopy of electronically excited BiO obtained by energy transfer from metastable O2. I. Dependence of excitation on [O2]. J Chem Phys 1990. [DOI: 10.1063/1.459321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bar I, Cohen Y, David D, Rosenwaks S, Valentini JJ. Direct observation of preferential bond fission by excitation of a vibrational fundamental: Photodissociation of HOD (0,0,1). J Chem Phys 1990. [DOI: 10.1063/1.459040] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
The enzyme adenosine deaminase (adenosine aminohydrolase EC 3.5.4.4) from calf intestinal mucosa is commercially available at high purity grade yet, at the sensitivity at which fluorescence studies may be undertaken, a nonpeptidic fluorescence is detectable at lambda exmax = 350 nm and lambda emmax = 420 nm. A sevenfold decrease of this nonpeptidic fluorescence was obtained upon irradiation by the third harmonic (355 nm) of a Nd:YAG laser for 16 min, at 5 mJ/pulse, with a pulse width of 6 ns at a repetition rate of 10 Hz. The decline of fluorescence was accompanied by a negligible loss of enzymatic activity. Moreover, the integrity of the protein was ascertained by (i) its fluorescence (lambda exmax = 305 nm, lambda emmax = 335 nm) and lifetime distribution and (ii) its kinetics in the presence of the substrate adenosine and two inhibitors, all of which remained essentially unaltered. Laser photobleaching is a simple way to achieve a fluorescence grade adenosine deaminase.
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Affiliation(s)
- A H Parola
- Department of Chemistry, Ben Gurion University of the Negev, Beer Sheva, Israel
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Alexander MH, Andresen P, Bacis R, Bersohn R, Comes FJ, Dagdigian PJ, Dixon RN, Field RW, Flynn GW, Gericke K, Grant ER, Howard BJ, Huber JR, King DS, Kinsey JL, Kleinermanns K, Kuchitsu K, Luntz AC, McCaffery AJ, Pouilly B, Reisler H, Rosenwaks S, Rothe EW, Shapiro M, Simons JP, Vasudev R, Wiesenfeld JR, Wittig C, Zare RN. A nomenclature for Λ‐doublet levels in rotating linear molecules. J Chem Phys 1988. [DOI: 10.1063/1.455121] [Citation(s) in RCA: 205] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Schwartz‐Lavi D, Rosenwaks S. Scalar and vectorial properties in the photodissociation of tert‐butyl nitrite from the S1 and S2 states. J Chem Phys 1988. [DOI: 10.1063/1.454389] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lavi R, Bar I, Rosenwaks S. Symmetry and geometry of the first two excited singlet states of dimethylnitrosoamine studied by vector correlations. J Chem Phys 1987. [DOI: 10.1063/1.452206] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Schwartz-Lavi D, Bar I, Rosenwaks S. Rotational alignment and non-statistical a doublet population in no following (CH3)3CONO photodissociation. Chem Phys Lett 1986. [DOI: 10.1016/0009-2614(86)80309-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Nadler I, Rosenwaks S. Studies of energy transfer processes in triplet states of N2. I. Energy pooling by vibrationally selected N2 (A 3Σ+u,v) molecules. J Chem Phys 1985. [DOI: 10.1063/1.449105] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Affiliation(s)
- A. Rotem
- Departments of Physics and Chemistry, Ben‐Gurion University of the Negev, Beer‐Sheva, Israel
| | - I. Nadler
- Departments of Physics and Chemistry, Ben‐Gurion University of the Negev, Beer‐Sheva, Israel
| | - S. Rosenwaks
- Departments of Physics and Chemistry, Ben‐Gurion University of the Negev, Beer‐Sheva, Israel
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Nadler I, Setser D, Rosenwaks S. Production of the n2 herman infrared system by the energy pooling reaction of N2(Δ3Σ+u) metastable nitrogen molecules. Chem Phys Lett 1980. [DOI: 10.1016/0009-2614(80)80348-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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