76
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Rowland M, Lesnock J, Edwards R, Richard S, Zorn K, Sukumvanich P, Krivak T. Occult uterine cancer in patients undergoing laparoscopic hysterectomy with morcellation: Implications for surveillance for disease recurrence and outcomes. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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77
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Rungruang B, Miller A, Krivak T, Horowitz N, Rodriguez N, Hamilton C, Bookman M, Maxwell G, Richard S. What is the role of retroperitoneal exploration in optimally debulked stage IIIC epithelial ovarian cancer? A Gynecologic Oncology Group ancillary data study. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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78
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Bachmeyer C, Orsini D, Demay J, Dautheville S, Richard S, Steichen O. Fingertip necrosis and cervical lymphadenopathy. Neth J Med 2013; 71:319-323. [PMID: 23956317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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79
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Scotté F, Hervé C, Oudard S, Bugat M, Bugat R, Farsi F, Namer M, Tourani J, Tournigand C, Yazbek G, Richard S, Krakowski I. Supportive care organisation in France: An in depth study by the French speaking association for supportive care in cancer (AFSOS). Eur J Cancer 2013; 49:1090-6. [DOI: 10.1016/j.ejca.2012.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 11/04/2012] [Indexed: 11/25/2022]
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80
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Samei E, Murphy S, Richard S. Assessment of multi-directional MTF for breast tomosynthesis. Phys Med Biol 2013; 58:1649-61. [PMID: 23422248 DOI: 10.1088/0031-9155/58/5/1649] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A method was developed to assess the multi-directional modulation transfer function (MTF) of breast tomosynthesis imaging systems using a sphere phantom. The method was initially developed based on a simulation dataset. Projections were simulated for a uniform voxelized breast phantom with sphere inserts using a fluence modeled from a 28 kVp beam incident upon an indirect flat-panel detector. Based on cascaded systems modeling, characteristic noise and blurring were added to each projection. The projections were reconstructed using a standard filtered backprojection technique, producing a 3D volume with an isotropic voxel size of 200 µm. ROIs that completely encompassed single spheres were extracted and conical regions were prescribed along the three major axes extending from the centroids. Pixels within the cones were used to form edge spread functions (ESFs), from which the directional MTFs were calculated. Binning size and conical range were adjusted to maximize the accuracy and to minimize the noise of the MTF. A method was further devised to remove out-of-plane artifacts from the ESF in the x-y plane. Finally, the method was applied to experimentally assess the directional MTF of a prototype tomosynthesis system. Comparisons of the sphere-based MTF along the different axes and the theoretical MTF yielded good agreement. A 30° angular cone and a 20 µm sampling were found to provide an ideal trade-off between the noise and accuracy of the measurement. The removal of artifacts in ESF yielded 'modified' MTFs that enabled a resolution-only characterization of the in-slice resolution of tomosynthesis. Drop-off frequencies in the x- and y-directional MTFs were 1.6 cycles mm(-1) and 1.5 cycles mm(-1), respectively. The presented method of separating the effective resolution and artifacts from the measured ESF was found experimentally implementable and is expected to facilitate the interpretation of MTF measurements in tomosynthesis.
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81
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Richard S, Olschwang S, Chauveau D, Resche F. La maladie de von Hippel-Lindau. Med Sci (Paris) 2013. [DOI: 10.4267/10608/2159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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82
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Richard S, Barge P. Structure and evolution of 3D Rossby Vortices. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134603002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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83
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Reboul C, Thireau J, Meyer G, André L, Obert P, Cazorla O, Richard S. Carbon monoxide exposure in the urban environment: An insidious foe for the heart? Respir Physiol Neurobiol 2012; 184:204-12. [DOI: 10.1016/j.resp.2012.06.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 06/05/2012] [Accepted: 06/06/2012] [Indexed: 12/20/2022]
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84
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Richard S, Pardoen D, Piquard D, Fostier P, Thomas JM, Vervier JF, Verbanck P. [Perception of training in doctor-patient communication for students at faculty of medicine]. REVUE MEDICALE DE BRUXELLES 2012; 33:525-530. [PMID: 23373123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Doctor-patient communication is the heart of any medical practice. The technology of medicine today is focused on knowledge, its application and know-how, rather than skills of being, of knowing and of knowing when to do nothing. In 2005, Belgian High Council of Health emphasizes a quantitative and qualitative reduction of communication aspects within the initial medical training. The aim of our study is to investigate Belgian and foreign students perception of how the doctor-patient communication was taught during their studies. A questionnaire was sent by email to 300 Belgian and foreign Universities. We obtained 13.6% of answers of 99 students belonging to 41 Faculties from 22 countries. 55.6% of respondents thought to be well trained in the doctor-patient communication. 85.9% of students received theoretical courses out of which only 64.6% have the opportunity to enhance their apprenticeship by practical work. Majority of respondents required more practical work in learning to communicate. All of them agree on that they would like more applied practical communication incorporated into their curriculum. Like wise the society that calls for doctors with increased communication skills and communication researchers who emphasize the central role of the doctor-patient communication in the clinical and therapeutic approach, students are also seeking longitudinal transdisciplinary learning, including more practical practices.
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85
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Richard S, Zingg HH. Identification of cis-acting regulatory elements in the human oxytocin gene promoter. Mol Cell Neurosci 2012; 2:501-10. [PMID: 19912835 DOI: 10.1016/1044-7431(91)90017-i] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/1991] [Indexed: 11/28/2022] Open
Abstract
The expression of hormone-inducible genes is determined by the interaction of trans-acting factors with hormone-inducible elements and elements mediating basal and cell-specific expression. We have shown earlier that the gene encoding the hypothalamic nonapeptide oxytocin (OT) is under the control of an estrogen response element (ERE). The present study was aimed at identifying cis-acting elements mediating basal expression of the OT gene. A construct containing sequences -381 to +36 of the human OT gene was linked to a reporter gene and transiently transfected into a series of neuronal and nonneuronal cell lines. Expression of this construct was cell specific: it was highest in the neuroblastoma-derived cell line, Neuro-2a, and lowest in NIH 3T3 and JEG-3 cells. By 5' deletion analysis, we determined that a segment from -49 to +36 was capable of mediating cells-pecific promoter activity. Within this segment, we identified three proximal promoter elements (PPE-1, PPE-2, and PPE-3) that are each required for promoter activity. Most notably, mutation of a conserved purine-rich element (GAGAGA) contained within PPE-2 leads to a 10-fold decrease in promoter strength. Gel mobility shift analysis with three different double-stranded oligonucleotides demonstrated that each proximal promoter element binds distinct nuclear factors. In each case, only the homologous oligonucleotide, but neither of the oligonucleotides corresponding to adjacent elements, was able to act as a competitor. Thus, a different set of factors appears to bind independently to each element. By reinserting the homologous ERE or a heterologous glucocorticoid response element upstream of intact or altered proximal promoter segments we determined that removal or mutation of proximal promoter elements decreases basal expression, but does not abrogate the hormone responsiveness of the promoter. In conclusion, these results indicate that an important component of the transcriptional activity of the OT promoter resides in a small region extending only 50 bases upstream of the cap site and that this activity is the result of a cooperative interaction of at least three distinct proximal promoter elements.
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86
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Lin J, Hansen K, Beriwal S, Kelley J, Krivak T, Edwards R, Richard S, Olawaiye A, Zorn K, Sukumvanich P. Comparison of primary surgery versus definitive radiation for treatment of early endometrial cancer in the elderly population. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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87
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Smith A, Laskey R, Beriwal S, Scott E, Krivak T, Richard S. Does minimally invasive surgery increase the incidence of lymphovascular space invasion and positive cytology in endometrial cancer? Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.07.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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88
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Hachfi L, Simide R, Richard S, Couvray S, Coupe S, Gaillard S, Pierre S, Grillasca JP, Prevot-D'Alvise N. Effect of water temperature increase on HO-1 expression in European sea bass (Dicentrarchus labrax L.) tissues. Cell Mol Biol (Noisy-le-grand) 2012; Suppl.58:OL1752-OL1756. [PMID: 22992441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2012] [Accepted: 09/07/2012] [Indexed: 06/01/2023]
Abstract
One of the most pertinent environmental factors influencing the marine organism life is temperature. It has been demonstrated that an increase of temperature is able to induce the synthesis of heat shock proteins (HSP). In this study we investigated the expression of HO-1 mRNA, also referred to as HSP32, in different tissues of European sea bass (Dicentrarchus labrax, L.) at several time points after increased temperature exposure (from 12degC to 30degC). Our results showed that HO-1 was not expressed in gills, heart, muscle and brain while it was expressed at a basal level in intestine. In liver, spleen and kidneys, HO-1 expression was influenced by temperature increases. In the spleen, we found a significant decrease of the HO-1 expression at the end of 4 weeks. In kidneys a very fast collapse of HO-1 expression level was recorded reaching null value as soon as one hour after exposure to 30degC. In liver, HO-1 expression increased from one hour of exposure to 30degC confirming HO-1 involvement to heat shock response in this organ. This increasing trend reached a 4.5-fold higher value than the initial level after 4 weeks.
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Richard S, Lorente P, Nargeot J. Les hauts et bas des courants calciques dans le développement de l'insuffisance cardiaque et le paradoxe des stratégies thérapeutiques. Med Sci (Paris) 2012. [DOI: 10.4267/10608/1342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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90
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Richard S, Toussaint-Hacquard M, Fay R, Lacour J, Ducrocq X, Lecompte T. Laboratory Effect on Platelet Activity within 24 h of the First 300-mg Oral Dose of Aspirin Given in Hospital during the Acute Phase of Ischemic Cerebral Events. Cerebrovasc Dis 2012; 33:574-8. [DOI: 10.1159/000338291] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 03/16/2012] [Indexed: 11/19/2022] Open
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91
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Zalvidea S, André L, Loyer X, Cassan C, Sainte-Marie Y, Thireau J, Sjaastad I, Heymes C, Pasquié JL, Cazorla O, Aimond F, Richard S. ACE inhibition prevents diastolic Ca2+ overload and loss of myofilament Ca2+ sensitivity after myocardial infarction. Curr Mol Med 2012; 12:206-17. [PMID: 22280358 DOI: 10.2174/156652412798889045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 11/22/2011] [Accepted: 11/23/2011] [Indexed: 01/14/2023]
Abstract
Prevention of adverse cardiac remodeling after myocardial infarction (MI) remains a therapeutic challenge. Angiotensin-converting enzyme inhibitors (ACE-I) are a well-established first-line treatment. ACE-I delay fibrosis, but little is known about their molecular effects on cardiomyocytes. We investigated the effects of the ACE-I delapril on cardiomyocytes in a mouse model of heart failure (HF) after MI. Mice were randomly assigned to three groups: Sham, MI, and MI-D (6 weeks of treatment with a non-hypotensive dose of delapril started 24h after MI). Echocardiography and pressure-volume loops revealed that MI induced hypertrophy and dilation, and altered both contraction and relaxation of the left ventricle. At the cellular level, MI cardiomyocytes exhibited reduced contraction, slowed relaxation, increased diastolic Ca2+ levels, decreased Ca2+-transient amplitude, and diminished Ca2+ sensitivity of myofilaments. In MI-D mice, however, both mortality and cardiac remodeling were decreased when compared to non-treated MI mice. Delapril maintained cardiomyocyte contraction and relaxation, prevented diastolic Ca2+ overload and retained the normal Ca2+ sensitivity of contractile proteins. Delapril maintained SERCA2a activity through normalization of P-PLB/PLB (for both Ser16- PLB and Thr17-PLB) and PLB/SERCA2a ratios in cardiomyocytes, favoring normal reuptake of Ca2+ in the sarcoplasmic reticulum. In addition, delapril prevented defective cTnI function by normalizing the expression of PKC, enhanced in MI mice. In conclusion, early therapy with delapril after MI preserved the normal contraction/relaxation cycle of surviving cardiomyocytes with multiple direct effects on key intracellular mechanisms contributing to preserve cardiac function.
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Hansen K, Lin J, Beriwal S, Lesnock J, Sukumvanich P, Richard S, Olawaiye A, Kelley J, Zorn K, Krivak T. Impact of Postoperative Treatment on Stage IIIC Endometrial Cancer: A Comparison of Single Modality to Multimodality Therapy. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2012.01.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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93
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Smith A, Scott E, Krivak T, Richard S, Sukumvanich P, Olawaiye A. Outcome comparison of dual-console robotic and laparoscopic surgery in a fellowship program. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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94
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Rodriguez N, Miller A, Richard S, Rungruang B, Hamilton C, Bookman M, Maxwell G, Horowitz N, Krivak T. Upper abdominal procedures in advanced stage ovarian or primary peritoneal carcinoma patients with minimal or no gross residual disease: An analysis of GOG 182. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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95
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Laskey R, Richard S, Smith A, Lesnock J, Zorn K, Sukumvanich P, Kelley J, Olawaiye A, Krivak T. Retreatment with bevacizumab in patients with recurrent ovarian cancer does not increase morbidity and has a favorable disease response. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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96
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Hansen K, Lin J, Beriwal S, Lesnock J, Sukumvanich P, Richard S, Olawaiye A, Kelley J, Zorn K, Krivak T. Impact of postoperative treatment on stage IIIC endometrial cancer: A comparison of single modality to multimodality therapy. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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97
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Richard S, Miller A, Markman M, Armstrong D, Walker J, Krivak T. Nadir CA125 and second look surgery in patients with advanced stage epithelial ovarian cancer treated with intravenous compared to intraperitoneal chemotherapy: A study of Gynecologic Oncology Group Protocols 114 and 172. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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98
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Heck O, Derelle AL, Lacour JC, Richard S, Bracard S, Anxionnat R. Ruptures d’anévrismes lenticulo-stries à propos de trois cas. J Neuroradiol 2012. [DOI: 10.1016/j.neurad.2012.01.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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99
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Beriwal S, Heron D, Shinde A, Kelley J, Edwards R, Sukumvanich P, Richard S, Olawaiye A, Krivak T. Preoperative chemo IMRT for vulvar carcinoma — Analysis of pattern of relapse. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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100
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Bencheikh K, Richard S, Mélin G, Krabshuis G, Gooijer F, Levenson JA. Phase-matched third-harmonic generation in highly germanium-doped fiber. OPTICS LETTERS 2012; 37:289-291. [PMID: 22297328 DOI: 10.1364/ol.37.000289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Phase-matched third-harmonic generation is demonstrated in a germanium-doped optical fiber. Green light at 514.4 nm is generated in an LP(03) mode when a pump field at ~1543.3 nm is launched into the fiber in the fundamental LP(01) mode. The phase matching is achieved for a particular combination of the germanium doping concentration and the fiber core diameter.
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