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Pfaff Y, Forster C, Barbiero G, Rampp M, Klingebiel S, Brons J, Teisset CY, Wang H, Jung R, Jaksic J, Woldegeorgis AH, Saraceno CJ, Metzger T. Nonlinear pulse compression of a thin-disk amplifier and contrast enhancement via nonlinear ellipse rotation. OPTICS EXPRESS 2022; 30:10981-10990. [PMID: 35473051 DOI: 10.1364/oe.455393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
We demonstrate pulse compressibility from 840 fs to 38 fs of 10 mJ pulses from a thin-disk amplifier at a repetition rate of 3 kHz after nonlinear broadening in a multipass cell. In addition, the temporal-intensity contrast is enhanced via nonlinear ellipse rotation of more than a factor 50 with an optical efficiency of 56%. We believe this is the first published experimental combination of multipass cell-based nonlinear compression and nonlinear ellipse rotation-based contrast enhancement preserving both pulse compressibility and beam quality.
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Kuzmin IV, Mironov SY, Gacheva EI, Poteomkin AK, Khazanov EA. Retaining 3D shape of picosecond laser pulses during optical harmonics generation. APPLIED OPTICS 2019; 58:2678-2686. [PMID: 31045070 DOI: 10.1364/ao.58.002678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/27/2019] [Indexed: 06/09/2023]
Abstract
Collinear and noncollinear sum-frequency generation of broadband laser pulses with angular and frequency chirp is considered. The conditions of minimal distortions of 3D ellipsoidal intensity distribution of triangular chirped femtosecond pulses during generation of the second, third, and fourth harmonics of a Ti-Sa laser in LBO, BBO, and KBBF crystals are found using numerical methods. The efficiency of conversion from the fundamental to the fourth harmonic (45%) is higher than to the third harmonic (20%), and the distortions of intensity distribution are less.
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Nakanii N, Hosokai T, Pathak NC, Masuda S, Zhidkov AG, Nakahara H, Iwasa K, Mizuta Y, Takeguchi N, Otsuka TP, Sueda K, Ogino J, Nakamura H, Mori M, Kando M, Kodama R. Decomposition of powerful axisymmetrically polarized laser pulses in underdense plasma. Phys Rev E 2017; 94:063205. [PMID: 28085322 DOI: 10.1103/physreve.94.063205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 11/07/2022]
Abstract
Interaction of relativistically intense axisymmetrically polarized (radially or azimuthally polarized) laser pulses (RIAPLP) with underdense plasma is shown experimentally and theoretically to be essentially different from the interaction of conventional Gaussian pulses. The difference is clearly observed in distinct spectra of the side-scattered laser light for the RIAPLP and Gaussian pulses, as well as in the appearance of a spatially localized strong side emission of second harmonic of the laser pulse in the case of RIAPLP. According to our analysis based on three-dimensional particle-in-cell simulations, this is a result of instability in the propagation of RIAPLP in uniform underdense plasma.
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Affiliation(s)
- Nobuhiko Nakanii
- Photon Pioneers Center, Osaka University.,Core Research of Evolutional Science and Technology (CREST), Japan Science and Technology Agency.,Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology
| | - Tomonao Hosokai
- Photon Pioneers Center, Osaka University.,Core Research of Evolutional Science and Technology (CREST), Japan Science and Technology Agency.,Graduate School of Engineering, Osaka University
| | | | - Shinichi Masuda
- Photon Pioneers Center, Osaka University.,Core Research of Evolutional Science and Technology (CREST), Japan Science and Technology Agency
| | - Alexei G Zhidkov
- Photon Pioneers Center, Osaka University.,Core Research of Evolutional Science and Technology (CREST), Japan Science and Technology Agency
| | | | - Kenta Iwasa
- Graduate School of Engineering, Osaka University
| | | | | | | | | | | | | | - Michiaki Mori
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology
| | - Masaki Kando
- Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology
| | - Ryosuke Kodama
- Photon Pioneers Center, Osaka University.,Graduate School of Engineering, Osaka University.,Institute of Laser Engineering, Osaka University
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NAKAJIMA K. Laser-driven electron beam and radiation sources for basic, medical and industrial sciences. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2015; 91:223-45. [PMID: 26062737 PMCID: PMC4565973 DOI: 10.2183/pjab.91.223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 04/21/2015] [Indexed: 06/04/2023]
Abstract
To date active research on laser-driven plasma-based accelerators have achieved great progress on production of high-energy, high-quality electron and photon beams in a compact scale. Such laser plasma accelerators have been envisaged bringing a wide range of applications in basic, medical and industrial sciences. Here inheriting the groundbreaker's review article on "Laser Acceleration and its future" [Toshiki Tajima, (2010)],(1)) we would like to review recent progress of producing such electron beams due to relativistic laser-plasma interactions followed by laser wakefield acceleration and lead to the scaling formulas that are useful to design laser plasma accelerators with controllability of beam energy and charge. Lastly specific examples of such laser-driven electron/photon beam sources are illustrated.
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Affiliation(s)
- Kazuhisa NAKAJIMA
- Center for Relativistic Laser Science, Institute for Basic Science (IBS), Gwangju 500-712, Republic of Korea
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Allison RR, Patel RM, McLawhorn RA. Radiation oncology: physics advances that minimize morbidity. Future Oncol 2014; 10:2329-44. [DOI: 10.2217/fon.14.176] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
ABSTRACT Radiation therapy has become an ever more successful treatment for many cancer patients. This is due in large part from advances in physics including the expanded use of imaging protocols combined with ever more precise therapy devices such as linear and particle beam accelerators, all contributing to treatments with far fewer side effects. This paper will review current state-of-the-art physics maneuvers that minimize morbidity, such as intensity-modulated radiation therapy, volummetric arc therapy, image-guided radiation, radiosurgery and particle beam treatment. We will also highlight future physics enhancements on the horizon such as MRI during treatment and intensity-modulated hadron therapy, all with the continued goal of improved clinical outcomes.
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Affiliation(s)
- Ron R Allison
- 21st Century Oncology, Inc., 801 WH Smith Blvd, Greenville, NC 27858, USA
| | - Rajen M Patel
- 21st Century Oncology, Inc., 801 WH Smith Blvd, Greenville, NC 27858, USA
| | - Robert A McLawhorn
- 21st Century Oncology, Inc., 801 WH Smith Blvd, Greenville, NC 27858, USA
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Orth M, Lauber K, Niyazi M, Friedl AA, Li M, Maihöfer C, Schüttrumpf L, Ernst A, Niemöller OM, Belka C. Current concepts in clinical radiation oncology. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2014; 53:1-29. [PMID: 24141602 PMCID: PMC3935099 DOI: 10.1007/s00411-013-0497-2] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 10/05/2013] [Indexed: 05/04/2023]
Abstract
Based on its potent capacity to induce tumor cell death and to abrogate clonogenic survival, radiotherapy is a key part of multimodal cancer treatment approaches. Numerous clinical trials have documented the clear correlation between improved local control and increased overall survival. However, despite all progress, the efficacy of radiation-based treatment approaches is still limited by different technological, biological, and clinical constraints. In principle, the following major issues can be distinguished: (1) The intrinsic radiation resistance of several tumors is higher than that of the surrounding normal tissue, (2) the true patho-anatomical borders of tumors or areas at risk are not perfectly identifiable, (3) the treatment volume cannot be adjusted properly during a given treatment series, and (4) the individual heterogeneity in terms of tumor and normal tissue responses toward irradiation is immense. At present, research efforts in radiation oncology follow three major tracks, in order to address these limitations: (1) implementation of molecularly targeted agents and 'omics'-based screening and stratification procedures, (2) improvement of treatment planning, imaging, and accuracy of dose application, and (3) clinical implementation of other types of radiation, including protons and heavy ions. Several of these strategies have already revealed promising improvements with regard to clinical outcome. Nevertheless, many open questions remain with individualization of treatment approaches being a key problem. In the present review, the current status of radiation-based cancer treatment with particular focus on novel aspects and developments that will influence the field of radiation oncology in the near future is summarized and discussed.
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Affiliation(s)
- Michael Orth
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Kirsten Lauber
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Maximilian Niyazi
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Anna A. Friedl
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Minglun Li
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Cornelius Maihöfer
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Lars Schüttrumpf
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Anne Ernst
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Olivier M. Niemöller
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
- Present Address: Clinic for Radiation Oncology, St. Elisabeth Hospital Ravensburg, Ravensburg, Germany
| | - Claus Belka
- Department of Radiotherapy and Radiation Oncology, Ludwig-Maximilians-University of Munich, Munich, Germany
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Zlobinskaya O, Siebenwirth C, Greubel C, Hable V, Hertenberger R, Humble N, Reinhardt S, Michalski D, Röper B, Multhoff G, Dollinger G, Wilkens JJ, Schmid TE. The Effects of Ultra-High Dose Rate Proton Irradiation on Growth Delay in the Treatment of Human Tumor Xenografts in Nude Mice. Radiat Res 2014; 181:177-83. [DOI: 10.1667/rr13464.1] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Herrmann D, Homann C, Tautz R, Scharrer M, Russell PSJ, Krausz F, Veisz L, Riedle E. Approaching the full octave: noncollinear optical parametric chirped pulse amplification with two-color pumping. OPTICS EXPRESS 2010; 18:18752-18762. [PMID: 20940768 DOI: 10.1364/oe.18.018752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We present a new method to broaden the amplification range in optical parametric amplification toward the bandwidth needed for single cycle femtosecond pulses. Two-color pumping of independent stages is used to sequentially amplify the long and short wavelength parts of the ultrabroadband seed pulses. The concept is tested in two related experiments. With multi-mJ pumping pulses with a nearly octave spanning spectrum and an uncompressed energy of 3 mJ are generated at low repetition rate. The spectral phase varies slowly and continuously in the overlap region as shown with 100 kHz repetition rate. This should allow the compression to the Fourier limit of below 5 fs in the high energy system.
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Affiliation(s)
- D Herrmann
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany.
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