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The Review of Laser Engineering最新文献

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Far-Field Nanostructuring in Dielectric Materials Beyond the Diffraction Limit Using Femtosecond Laser (「レーザーナノ加工技術の進展」特集号) Far-Field Nanostructuring in Dielectric Materials Beyond the Diffraction Limit Using FemtosecondLaser(《激光纳米加工技术进展》专刊)
The Review of Laser Engineering Pub Date : 2015-11-01 DOI: 10.2184/LSJ.43.11_752
Y. Liao, Ya Cheng, K. Sugioka
{"title":"Far-Field Nanostructuring in Dielectric Materials Beyond the Diffraction Limit Using Femtosecond Laser (「レーザーナノ加工技術の進展」特集号)","authors":"Y. Liao, Ya Cheng, K. Sugioka","doi":"10.2184/LSJ.43.11_752","DOIUrl":"https://doi.org/10.2184/LSJ.43.11_752","url":null,"abstract":"progress in the development of far- fi eld nanostructuring technologies based on femtosecond laser direct writing. The principles for breaking through the diffraction limit in the interaction of a focused ultrafast laser beam with dielectric materials are presented, and applications of the femtosecond laser nanostructuring are discussed.","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120947715","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
Laser Original : Application of Ultrashort DUV Pulse Laser to Study the Primary Dynamic Process of Molecules in Vitamin D Biosynthesis (「バイオ分野における紫外・深紫外光の新たな応用展開」特集号) 激光起源:Application of Ultrashort DUV Pulse Laser to Study the Primary Dynamic Process of Molecules inVitamin D Biosynthesis(“紫外与深紫外光在生物领域的新应用”专号)
The Review of Laser Engineering Pub Date : 2015-10-01 DOI: 10.2184/lsj.43.10_703
Takayoshi Kobayashi, Arkadiusz Jarota, B. Xue
{"title":"Laser Original : Application of Ultrashort DUV Pulse Laser to Study the Primary Dynamic Process of Molecules in Vitamin D Biosynthesis (「バイオ分野における紫外・深紫外光の新たな応用展開」特集号)","authors":"Takayoshi Kobayashi, Arkadiusz Jarota, B. Xue","doi":"10.2184/lsj.43.10_703","DOIUrl":"https://doi.org/10.2184/lsj.43.10_703","url":null,"abstract":"","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128280232","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
Silicon Nanopore Detection of Single DNA Molecules by Ultraviolet Excitation 紫外激发单DNA分子的纳米硅孔检测
The Review of Laser Engineering Pub Date : 2015-10-01 DOI: 10.2184/LSJ.43.10_689
T. Saiki, Hirohito Yamazaki, S. Itoh, K. Esashika
{"title":"Silicon Nanopore Detection of Single DNA Molecules by Ultraviolet Excitation","authors":"T. Saiki, Hirohito Yamazaki, S. Itoh, K. Esashika","doi":"10.2184/LSJ.43.10_689","DOIUrl":"https://doi.org/10.2184/LSJ.43.10_689","url":null,"abstract":"fi cient contributs to reduction in background noise coming from fl uorophore-labeled DNA strands that remain behind the membrane. Employing this approach, we investigated the effect of salt concentration and counter-ion species on the translocation speed and dwell time in the observation volume.","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129722798","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
Researches on Laser Space Solar Power System 激光空间太阳能发电系统研究
The Review of Laser Engineering Pub Date : 2015-09-01 DOI: 10.2184/LSJ.43.9_616
K. Fujita
{"title":"Researches on Laser Space Solar Power System","authors":"K. Fujita","doi":"10.2184/LSJ.43.9_616","DOIUrl":"https://doi.org/10.2184/LSJ.43.9_616","url":null,"abstract":"地球の気候変動問題,いわゆる温暖化においては,温 室効果ガスである二酸化炭素の累積排出量に応じて21世 紀末の温度上昇分が決定されるとの最新報告 にもみら れるように,その排出量抑制が重要である.太陽光利用 は再生可能エネルギーの中でも偏在性が少ないために広 く利用され,昨今の市場の急激な拡大にも見られるよう に,エネルギー産業においても重要な位置を占めはじめ ている. 宇宙太陽光発電は,その太陽光利用において宇宙規模 で発電所を形成しようとする構想であり,研究テーマで ある.地上では昼間のみ日射が得られるが,宇宙空間で は常時日射を得ることが可能である.日本全国の気象観 測点40箇所における通年の全天日射量の積算値の平均に 対し,地球付近の宇宙空間における通年日射量(パワー 値では1367 W/mであり人工衛星による観測をベースに して定められた太陽定数と呼ばれる )は約9.3倍程度で ある.夜や曇りがなく,大気による減衰もない所以であ る.この差を利用した発電所の実現可能性について,す なわち宇宙空間でエネルギーを得,遠隔地である地上に 無線送電するシステムの構築可能性を追求するのが,宇 宙太陽光発電研究である. 本稿では,1968年の米国提唱から日本が現在リードす る宇宙太陽光発電の研究分野において,レーザーを無線 送電手段とするレーザー宇宙太陽光発電システム(Laser Space Solar Power System: L-SSPS)の研究についてその経 緯の紹介と最近の研究進捗について解説する.2章では 提唱から現在に至るまでの経緯と現状を概観する.3章 ではこれまでに提案されているL-SSPSの構成と概要, 研究現状について述べる.その中で,最近の特に新しい 動きとして気象モデルを用いたレーザー光の大気透過率 評価について4章で紹介し,5章でまとめる.","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117314662","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
Space Debris Environment and Aspects for Remediation 空间碎片环境及其修复方面
The Review of Laser Engineering Pub Date : 2015-09-01 DOI: 10.2184/LSJ.43.9_592
A. Kato
{"title":"Space Debris Environment and Aspects for Remediation","authors":"A. Kato","doi":"10.2184/LSJ.43.9_592","DOIUrl":"https://doi.org/10.2184/LSJ.43.9_592","url":null,"abstract":"The orbital environment has so deteriorated to such a serious extent that space activities must comply with the world debris mitigation guidelines, the UN Debris Mitigation Guidelines, for example. However, the recent intentional destruction of spacecraft, the accidental break-up of spent rocket bodies, and orbital collisions among satellites are accelerating the deterioration. Now, world experts are seeking active debris removal that will be essential in the near future to ensure the sustainability of space activities. This article describes the recent debris environment, the risk of debris impact, and the necessity of debris removal.","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130635559","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
Efficient Production of Fast Electron Via Surface Plasmon Resonance Induced by Intense Laser Light 通过强激光诱导的表面等离子体共振高效生产快速电子
The Review of Laser Engineering Pub Date : 2015-09-01 DOI: 10.2184/lsj.43.9_638
三島 陽介, 羽原 英明, P. Singh
{"title":"Efficient Production of Fast Electron Via Surface Plasmon Resonance Induced by Intense Laser Light","authors":"三島 陽介, 羽原 英明, P. Singh","doi":"10.2184/lsj.43.9_638","DOIUrl":"https://doi.org/10.2184/lsj.43.9_638","url":null,"abstract":"集光強度が10 W/cmを超える高強度レーザーパルス とプラズマの相互作用によって加速される電子のエネル ギーはMeV(メガ電子ボルト)に達し,その挙動を知る には相対論的な取り扱いを必要とする.この高速電子は 高エネルギー密度物理や準単色ビームを用いた高密度プ ラズマ診断,次世代エネルギーとして期待されるレー ザー核融合やプラズマフォトニックデバイスを用いた ビーム制御といった観点からも精力的に研究がおこなわ れている.また,高強度レーザー照射時に高速電子 と同様に生成される高エネルギーイオン・硬X線は,ブ ラッグピークを利用した粒子線がん治療,放射性同位元 素の生成,実験室宇宙物理,加速器へ入射する高輝度粒 子線源として及びプラズマ中の電磁場計測などに用いら れている.上記応用の達成に向けて,高強度レー ザー生成高エネルギー粒子ビームのさらなる高輝度化が 求められている. ターゲット表面にナノ構造をもたせた場合,平板ター ゲットと比較して,生成される高速電子のフラックスが 大幅に増加する研究が多数報告されている.ナノ構造の 一例として挙げられるナノワイヤー,フォーム,マ イクロスフィアなどは,一般的に全てランダム構造で ある.一方,2光束干渉法などで作製されるグレーティ ングは高精度の周期構造をもち,生じる回折光は構 造パラメータの選択によって容易に制御することができ る. レーザー光を金属ターゲットへ照射したとき,固体中 では自由電子の共鳴振動で縦波のプラズモンが発生す る.このとき,固体表面に発生する“表面プラズモン”は High-energy electrons are generated when a high intensity(10 19 W/m 2 ), 30-femtosecond laser pulse","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130904951","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
面発光レーザーの最近の進展 : 高速変調と機能集積 (「面発光型半導体レーザーの最新研究」特集号) 表面发光激光的最新进展:高速调制与功能集成(《表面发光型半导体激光的最新研究》专刊)
The Review of Laser Engineering Pub Date : 2015-07-01 DOI: 10.2184/LSJ.43.7_425
小山 二三夫
{"title":"面発光レーザーの最近の進展 : 高速変調と機能集積 (「面発光型半導体レーザーの最新研究」特集号)","authors":"小山 二三夫","doi":"10.2184/LSJ.43.7_425","DOIUrl":"https://doi.org/10.2184/LSJ.43.7_425","url":null,"abstract":"","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122306304","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
単一モード高出力フォトニック結晶面発光レーザー (「面発光型半導体レーザーの最新研究」特集号) 单模高功率光子晶体表面发光激光(《表面发光型半导体激光的最新研究》专刊)
The Review of Laser Engineering Pub Date : 2015-07-01 DOI: 10.2184/LSJ.43.7_447
野田 進
{"title":"単一モード高出力フォトニック結晶面発光レーザー (「面発光型半導体レーザーの最新研究」特集号)","authors":"野田 進","doi":"10.2184/LSJ.43.7_447","DOIUrl":"https://doi.org/10.2184/LSJ.43.7_447","url":null,"abstract":"","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"68 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128028854","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
Time-Resolved Molecular Orbital Imaging Using Electron Compton Scattering 利用电子康普顿散射进行时间分辨分子轨道成像
The Review of Laser Engineering Pub Date : 2015-03-01 DOI: 10.2184/LSJ.43.3_154
M. Takahashi, M. Yamazaki
{"title":"Time-Resolved Molecular Orbital Imaging Using Electron Compton Scattering","authors":"M. Takahashi, M. Yamazaki","doi":"10.2184/LSJ.43.3_154","DOIUrl":"https://doi.org/10.2184/LSJ.43.3_154","url":null,"abstract":"反応性など分子の物理化学的性質の多くは,外側に大 きく広がった,ある特定の価電子分子軌道の形で決ま る.こうした分子軌道の形そのものを観測しようとす る試みは古くからなされてきており,その一つにコンプ トン散乱実験を発展させた形の電子運動量分光法 (Electron Momentum Spectroscopy: EMS)がある.コン プトン散乱といえば,物質内の全電子の運動量分布ない しは運動量空間全電子波動関数の二乗振幅強度分布を直 接的に与えることを示したX線非弾性散乱実験が歴史的 に有名であるが,コンプトン散乱はX線の代わりに高速 電子を励起源としても起こる.そうした電子コンプトン 散乱で生成する非弾性散乱電子と物質から飛び出した電 離電子の双方を同時計測し,異なるイオン化エネルギー を持つ物質内電子毎に分けて運動量分布を測定すること が,EMSの実験原理である.運動量空間で波動関数形 の観測を行うことの利点は,フーリエ変換の性質に由来 する.すなわち,物質の物理化学的性質の多くを支配す る位置空間波動関数の原子核から遠く離れた部分の鋭敏 な観測が期待できるのである. しかしながら,本手法は1960年前後に核物理反応の理 論家から提案され,長い歴史をもつにも拘わらず, 研究の対象の多くが単純原子分子に限定されていた.そ の最大の理由が,低速電子の前方散乱と比較して桁違い に小さな信号強度であった.そうした状況のもと,筆者 らは1990年代前半にEMS研究分野に参画し,信号強度 の桁違いの改善を図る一連のマルチチャンネルEMS装 置開発を行い,従前と比較して約50万倍の検出効率 の向上を果たした.その成果を順次踏まえて,二電子 励起過程の電子衝突ダイナミクスを明らかにし,ま た分子軌道の運動量空間における3次元観測等にも 成功した.近年では,分子振動によるC2H4分子の電子波 動関数の歪みやCF4およびH2分子の電子運動量分布に おける原子軌道間の干渉効果の研究等,分子軌道形 状の精密観測を行った. 以上の背景と経験を踏まえ,筆者らは現在,分子軌道 の運動量空間観測というユニークな特徴を自然科学の広 範な分野で発揮することを目指して,EMSの飛躍的展 開を図るための挑戦的課題に取り組んでいる.その一つ が,本稿で紹介する時間分解電子運動量分光法(TimeResolved EMS: TR-EMS)である.これは,分子内で原子 核に働く力は電子雲と他の原子核からの静電力の和とし て理解できるとの観点に立って化学反応とは物質内電 子の運動の変化が先導して起こる原子核配置の変化と定 義し,反応を根源的に司る電子運動のスナップショット 的観察,すなわち化学反応の“Molecular orbital movie”を 実時間撮影しようとするものである.ここでは,開発し Over the last four decades an experimental method has been developed that looks at molecular orbitals in","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133479858","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
Neutron Generation by Laser-Driven Proton Sources (「レーザー駆動中性子源の開発と応用」特集号) Neutron Generation by Laser-Driven Proton Sources(“激光驱动中子源的开发与应用”专刊)
The Review of Laser Engineering Pub Date : 2015-02-01 DOI: 10.2184/lsj.43.2_93
M. Roth
{"title":"Neutron Generation by Laser-Driven Proton Sources (「レーザー駆動中性子源の開発と応用」特集号)","authors":"M. Roth","doi":"10.2184/lsj.43.2_93","DOIUrl":"https://doi.org/10.2184/lsj.43.2_93","url":null,"abstract":"2000 resulted in 4 × 10 8 neutrons using the d-d fusion reaction when irradiating a deuterated plastic block with deuterons (see Fig. 1). A clear mono-energetic peak at 2.5 MeV was observed, which was boosted in energy in the forward direction by the beam fusion kinetics. In 2010 Higginson et al. continued the work on neutron production using the LLNL TITAN laser system 6 ） and obtained 1.8 × 10 9 n/sr (cid:514) 1 using LiF as a converter and 120 J of energy. They calculated those numbers to be suf fi cient enough for neutron resonance spectroscopy as a possible application. A year later the same group succeeded in getting 8 × 10 8 n/sr (cid:514) 1 via the same reaction using 360 J of laser energy on the same facility. 7 ） This time they also increased the neutron energy up Ultra-intense lasers have demonstrated the capability of accelerating short pulses of intense ion beams. These ion beams have been used to generate short bursts of neutrons by irradiating a converter in close distance to the source, making this scheme a very compact and bright source of neutrons up to more than 100 MeV in energy. Using novel laser ion acceleration mechanisms directed beams of neutrons can be generated, which increases the brightness of these sources compared to previous attempts. We review the recent research and present experimental data using a mechanism based on relativistic transparency to drive the most intense laser driven neutron source and use them for fi rst applications.","PeriodicalId":308244,"journal":{"name":"The Review of Laser Engineering","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132200555","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
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