Advanced High-Power Lasers and Applications最新文献_第3页

Super-broadband hybrid mid-infrared laser systems 超宽带混合中红外激光系统

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2521717

A. Ionin, I. Kinyaevskiy, Y. Klimachev, A. Kotkov, A. Kozlov, A. Sagitova, L. Seleznev, D. Sinitsyn

引用次数: 3

Picosecond deep ultraviolet pulses generated by a 100 kHz thin-disk laser system 由100千赫薄板激光系统产生的皮秒深紫外脉冲

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2521641

H. Turčičova, O. Novák, L. Roškot, J. Mužík, M. Smrž, A. Endo, T. Mocek

{"title":"Picosecond deep ultraviolet pulses generated by a 100 kHz thin-disk laser system","authors":"H. Turčičova, O. Novák, L. Roškot, J. Mužík, M. Smrž, A. Endo, T. Mocek","doi":"10.1117/12.2521641","DOIUrl":"https://doi.org/10.1117/12.2521641","url":null,"abstract":"We report on the generation of picosecond pulses at 515 nm and deep ultraviolet pulses at 257 nm and 206 nm. They are generated as second, fourth and fifth harmonic frequencies of the high power diode-pumped Yb:YAG thin-disk laser at the fundamental wavelength of 1030 nm. The laser at the fundamental wavelength is based on a chirped-pulse amplification of oscillator pulses in two-stage regenerative amplifier based on thin-disks as active media. The diode pumping at the zero phonon line is used. The pulses are produced at ~100 kHz repetition frequency, 2-10 ps pulse duration and ≤2 mJ pulse energy. The fundamental beam is doubled in an LBO crystal at an efficiency of 42%. Subsequently the fourth harmonic frequency (257 nm) is produced by frequency doubling of the second harmonic frequency in a CLBO crystal. The unconverted part of the fundamental beam after SHG is used with the fourth harmonic beam as 1ω+4ω frequency sum in a further CLBO crystal for the fifth harmonic frequency (206 nm) generation. Two issues are important in the efficient optical conversion: nonlinear absorption given mainly by two-photon absorption (TPA) and proper timing of interacting pulses. In our simulations we take into account TPA and study the consequences of different timing of 1ω- and 4ω-pulses on the CLBO when generating the 5th harmonic. It was found that 1.4 ps delay of the 1ω-pulse after the 4ω-pulse is necessary to get the highest 5ω-output. Also the 5ω-pulse duration is affected by the timing.","PeriodicalId":375593,"journal":{"name":"Advanced High-Power Lasers and Applications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130898341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Continuous wave diode pumped flowing-gas Cesium laser 连续波二极管泵浦流动气体铯激光器

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2518584

E. Yacoby, I. Auslender, Boris D. Barmashnko, Salman Rosewaks

引用次数: 2

Optically pumped rare gas lasers 光抽运稀有气体激光器

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522346

J. Han, C. Sanderson, B. Hokr, C. Ballmann, A. Clark, M. Heaven

{"title":"Optically pumped rare gas lasers","authors":"J. Han, C. Sanderson, B. Hokr, C. Ballmann, A. Clark, M. Heaven","doi":"10.1117/12.2522346","DOIUrl":"https://doi.org/10.1117/12.2522346","url":null,"abstract":"There have been concerted efforts to develop high-energy diode-pumped alkali vapor lasers (DPAL). These hybrid gas phase / solid-state laser systems offer possibilities for constructing high-powered lasers that have high beam quality. Considerable progress has been made, but there are technical challenges associated with the reactivity of the metal atoms. Rare gas atoms (Rg) excited to the np5 (n+1)s 3P2 configuration are metastable and have spectral properties that are closely similar to those of the alkali metals. Optically pumped lasers have been constructed using excitation of the np5 (n+1)p ← np5 (n+1)s transitions. Pulsed lasing has been observed for Ne*, Ar*, Kr* and Xe*. Helium was used as the collisional energy transfer agent that established population inversions. These systems have the advantage using inert reagents that are gases at room temperature, with excellent potential for closed-cycle, multi-wavelength operation. The primary technical difficulty for the rare gas laser is the discharge production of sufficient Rg* metastables in the presence of >200 Torr of He. We have developed a high frequency pulsed discharge that yields >1013 cm-3 Ar* in the presence of He at pressures up to 730 Torr. Using this discharge, a diode pumped Ar* laser providing 4.1 W of continuous wave output has been demonstrated, with an optical conversion efficiency of 31%. Development of the pulsed discharge system and CW lasing demonstrations with Xe* are reported.","PeriodicalId":375593,"journal":{"name":"Advanced High-Power Lasers and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123434864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Lighting a smart society 点亮智慧社会

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522110

P. Iacomussi, F. Valpreda

{"title":"Lighting a smart society","authors":"P. Iacomussi, F. Valpreda","doi":"10.1117/12.2522110","DOIUrl":"https://doi.org/10.1117/12.2522110","url":null,"abstract":"Lighting is no longer just turning on a lamp. Solid State Lighting allows reaching high energy savings and visual perception, but the path to success was not easy: in the early years when LED were available on the market, several concerns slowed down their widespread implementation. The large spread of Lighting Systems based on LED arrived only when products quality increased thanks also to the development of new metrology paradigms able to certify LED performances peculiarities. Currently LED promises to widespread in every lighting application increasing not only energy savings, but night-time safety, health and wellbeing thanks to lighting systems based on connectivity and smart controls, but new design paradigms and metric headed to new objectives are necessary, therefore there will be no need to measure only energetic and light performances. We are moving toward an approach more sensitive to Human Needs: energy savings and light efficiency are of no more the only interest to focus on, we need to measure performance of a lighting system in terms of not only SI quantities. We need now a consolidated metrology and design approach to Smart System for complexity and suitable to compare lighting quality in term of human perception and wellbeing.","PeriodicalId":375593,"journal":{"name":"Advanced High-Power Lasers and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130273414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical study of unstable resonators for diode-pumped alkali laser using wave optics simulation 二极管泵浦碱激光器不稳定谐振腔的波光学模拟理论研究

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522115

M. Endo, Ryuji Nagaoka, Hiroki Nagaoka, T. Nagai, F. Wani

引用次数: 2

High energy excimer laser system for nanosecond annealing of semiconductor devices 用于半导体器件纳秒退火的高能准分子激光系统

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522443

H. Besaucele, A. Adnet, François Beau, Yacine Bouksou, Cédric Bellier, P. Ceccato, Maxime Chatelain, Nabil Douri, Hervé Dusserre, C. Dutems, Martin Heintzmann, K. Huet, Mathieu Lenormand, Bobby Lespinasse, Vincent Martinez, F. Mazzamuto, Antoine Melin, S. Perrot, David Rodrigues, L. Ruet, Olivier Sannier, G. Thébault, I. Toqué-Trésonne, Armand Vestraete, Karim Zekri

引用次数: 3

Energy-pooling processes of high-lying Xe atoms under the condition of ultrahigh pumped power 超高抽运功率条件下高能Xe原子的能量池过程

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522304

Junzhi Chu, Shan He, Dong Liu, Xueyang Li, Jingwei Guo, Jinbo Liu, Shu Hu, Haiyang Li, Pengyuan Wang, Ying Chen, F. Sang, Yuqi Jin

引用次数: 0

High pressure CO2 amplifiers for picosecond pulse amplification 用于皮秒脉冲放大的高压CO2放大器

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2522314

H. V. von Bergmann

引用次数: 6

Lasing in optically pumped Ar:He mixture excited in a dielectric barrier discharge 光抽运氩的激光:在介质阻挡放电中激发的混合氩

Advanced High-Power Lasers and Applications Pub Date : 2019-01-03 DOI: 10.1117/12.2519438

P. A. Mikheyev, Jiande Han, M. Heaven

引用次数: 3