文献一覧: 03870200 (ISSN) - Ceek.jp Altmetrics

1 0 0 0 OA 共役ポリマーからなる自己組織化マイクロ球体共振器とレーザー発振

著者: 山本洋平
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.46, no.1, pp.25, 2018 (Released:2020-12-17)
参考文献数: 19

We present self-assembled conjugated polymer microspheres that act as whispering gallery mode (WGM) resonators. For the preparation of conjugated polymer microspheres, vapor diffusion and miniemulsion methods are adopted. For the vapor diffusion method to obtain microspheres, amorphous aggregation of the polymers are crucial by introducing sterically bulky moieties that largely twists the polymer main chain. Focused laser irradiation to the perimeter of the microspheres excites WGM, where sharp and periodic lines appear in the PL spectrum. With a benefit of the high light confinement properties, we demonstrate long distance, directional, and efficient light energy transfer and wavelength conversion through bispheres. Furthermore, WGM lasing is achieved from conjugated polymer microspheres upon femtosecond pumping. Conjugated polymer microsphere resonators have advantages of high photoabsorptivity, high refractive index, and inherent conducting properties, as well as the simple fabrication process, which are valuable for applications to optical circuits, electrically-driven lightings, and chemical and biological sensors

2022-11-19 19:45:58
1 + 2 Twitter

1 0 0 0 OA Cr 2+ 添加II-VI 族カルコゲン化物を用いた中赤外固体レーザー

著者: 湯本正樹斎藤徳人和田智之
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.48, no.8, pp.409, 2020 (Released:2022-10-25)
参考文献数: 41

Cr 2+ doped II-VI chalcogenides (Cr:ZnSe, Cr:ZnS, Cr:CdSe, etc.) are attractive laser media for direct access to the mid-infrared (MIR) region, because they possess a broad fluorescence spectrum and a large stimulated-emission cross section. Using them as laser media allows us to obtain superb tunable laser and femtosecond laser capabilities in the mid-IR region. In this paper, we review the optical properties of Cr 2+ doped II-VI chalcogenides, pump sources, the recent progress of Cr 2+ doped II-VI chalcogenide lasers, and our mid-IR lasers based on Cr:ZnSe and Cr:CdSe.

2022-10-25 22:56:22
1 + 0 Twitter

1 0 0 0 OA レーザー核融合の秘密

著者: Steven Bardwell
出版者: The Laser Society of Japan
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.12, no.1, pp.46-55, 1984-01-30 (Released:2010-02-26)
参考文献数: 23

2022-09-20 21:28:42
1 + 0 Twitter

1 0 0 0 OA 光およびレーザーが眼球に与える影響と障害の発生機序

著者: 尾花明
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.41, no.5, pp.369, 2013 (Released:2020-09-07)
参考文献数: 10
被引用文献数: 1

2022-08-25 12:40:53
1 + 3 Twitter

1 0 0 0 OA ホログラフィックディスプレイの現状と課題

著者: 高木康博
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.44, no.7, pp.413, 2016 (Released:2020-12-17)
参考文献数: 17

Holography is an ideal three-dimensional display technique. However, its electronic implementation requires light modulation by tremendous number of pixels whose pitch should be comparable to the wavelength of light. In this paper, several techniques proposed to overcome the above difficulty are shown; the technique using multiple spatial light modulators, the time-multiplexing technique, the technique using acousto-optic modulators, the resolution redistribution technique, and the horizontally scanning technique. Especially, the horizontally scanning technique is explained in detail; it is realized using the screen scanning system and the viewing-zone scanning system. The 360-degree holographic display is also realized based on the latter system.

2022-05-06 12:51:32
1 + 0 Twitter

1 0 0 0 OA レーザークーロン爆発イメージングによる実時間反応追跡

著者: 菱川明栄
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.40, no.10, pp.745, 2012 (Released:2020-08-26)
参考文献数: 33

Molecules exposed to few-cycle intense laser fields (> 1014 W/cm2) undergo a rapid bond breaking process called Coulomb explosion. Since the momenta of the resultant fragment ions reflect the geometrical structure of the target molecule, Coulomb explosion provides a direct access to the instantaneous structure of molecules during chemical reaction. Combined with the pump-probe scheme in ultrafast spectroscopy, Coulomb explosion imaging serves as a unique means to probe ultrafast molecular reaction processes in real time. Here we review this novel approach in ultrafast spectroscopy, with the applications to ultrafast isomerization of deuterated acetylene dication (C2D2 2+).

2022-04-29 02:21:05
1 + 0 Twitter

1 0 0 0 OA 脳外科用炭酸ガスレーザーメス実用機開発の研究I

著者: 滝澤利明
出版者: The Laser Society of Japan
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.5, no.4, pp.248-263, 1978-03-30 (Released:2010-11-22)
被引用文献数: 6 3

The author and his coworkers have developed a practical model of the CO2 laserscalpel for neurosurgery. The working group consists of neurosurgeons, engineers andsponsors. The author started the studies on the development of a practical model of thecarbon dioxide laser surgical unit for neurosurgery in 1969 and developed three types ofthe CO2 laser scalpels during the past 9 years in cooperation the members of the workinggroup. The first model, type 1, was an experimental laser scalpel with which the workinggroup studied the biomedical qualities of the CO2 laser. The second model, type2, wasdesigned for clinical use. But this model was cumbersome and insufficient in its abilitiesto be applied to neurosurgery. Therefore, we developed the third model, type 3, by imp-roving the demerits of the former model. Using this newly developed model, MEDILASERMODEL MEL-442, the nickname of which is “TAKYTOM-77”, we performed 80 cases ofsurgery with satisfactory results.This paper divides into two parts, Part 1 and Part 2. In Part 1, detail of the devi-ces was explained particularly on the points of improvement with a historical note. In Part 2, biomedical qualities of the CO2 laser, animal experiments, and such clinicalexperiences as the surgery of brain tumors, pigmentary nevus, cervical erosion, etc. were described with the studies on the hazards and personnel protection.The CO2 laser scalpel enables the operator to perform not only bloodless and precisesurgery, but also various epoch-making treatments which have been impossible with theconventional modalities.

2022-04-15 12:28:06
1 + 0 Twitter

1 0 0 0 OA 量子光学とレーザー

著者: 宅間宏
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.38, no.1, pp.13-15, 2010-01-15 (Released:2015-08-08)
参考文献数: 10

The lasers appeared in the human culture as light sources based on the quantum mechanical properties of

2022-04-10 01:22:49
1 + 0 Twitter

1 0 0 0 光ディスク用半導体レーザー

著者: 土方俊樹滝口治久
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.12, no.2, pp.63-73, 1984

2022-04-08 17:11:58
1 + 0 Twitter

1 0 0 0 ピークパワー10kWファイバレーザーを用いた超微細精密加工

著者: 吉田実前田純也澤田久
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.34, pp.S21-S25, 2006

2022-03-06 07:30:07
1 + 0 Twitter

1 0 0 0 バーチャルジャーナルの編集者になろう

著者: 植田憲一
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.29, no.11, pp.703, 2001

2022-02-03 02:00:07
1 + 0 Twitter

1 0 0 0 OA レーザーの基礎I

著者: 前田三男
出版者: The Laser Society of Japan
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.25, no.11, pp.802-810, 1997-11-15 (Released:2010-02-26)
参考文献数: 10

2021-11-28 11:14:36
1 + 0 Twitter

1 0 0 0 OA 超多値コヒーレントQAM光伝送技術

著者: 中沢正隆
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.37, no.3, pp.171-176, 2009-03-15 (Released:2015-08-04)
参考文献数: 16

optical transmission systems. Coherent quadrature amplitude modulation (QAM) is a very interesting

2021-11-02 14:17:00
1 はてなブックマーク

1 0 0 0 OA 高効率・高出力化に向けた量子ドットレーザーの進展

著者: 荒川泰彦岩本敏西前順一菅原充
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.47, no.4, pp.210, 2019 (Released:2021-08-13)
参考文献数: 20

We overview progress in quantum dot (QD) lasers, emphasizing the advantage of the QD lasers for application to laser processing technology. Recent advances in our development of the QD lasers toward high quantum efficiency and high out power at the NEDO project are also discussed.

2021-11-02 00:03:12
1 + 0 Twitter

1 0 0 0 C2スワンバンドのレーザー励起螢光スペクトル

著者: 白田耕蔵
出版者: 一般社団法人レーザー学会
雑誌: レーザー研究 (ISSN:03870200)
巻号頁・発行日: vol.11, no.8, pp.568-575, 1983
被引用文献数: 3

The laser-induced fluorescence (LIF) spectra for C2 Swan system (d3πg-a3πu) were observed with an Ar+ laser. Two laser lines of 472.7 and 514.5nm coincided with two ro-vibronic transitions: R(4) (Ω=2-2, =1-0) and Q(21) (Ω=2-2, v=0-0). The analysis yielded the vibrational parameters for the a3πu electronic state. The observed LIF spectra could not be explained using the known parameters for the d3πg electronic state. The parameters for the d3πg state were redetermined through the reanalysis of the emission spectra for C2 Swan system. The obtained parameters well explained the LIF spectra.