Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Akiyoshi Watanabe"'
Autor:
Yu Takiguchi, Kazuyoshi Hirose, Akiyoshi Watanabe, Hirotoshi Terada, Koji Takahashi, Soh Uenoyama
Publikováno v:
Optics Letters. 45:6218
The continuous downscaling of electronic devices requires higher-resolution optical microscopic images for semiconductor failure analysis (FA). However, a part of the diffracted light from the measuring pattern in the silicon (Si) substrate cannot be
Autor:
Junji Kawanaka, Kazuyoshi Hirose, Shigeki Tokita, Akiyoshi Watanabe, Susumu Noda, Kenji Ishizaki, Xiaoyang Guo, Noriaki Miyanaga, Takahiro Sugiyama
Publikováno v:
Applied optics. 57(19)
The passively Q-switched operation of a cryogenically cooled Yb:YAG/Cr:YAG microchip laser was demonstrated with end pumping by a photonic crystal surface emitting laser (PCSEL). This laser generated 70 μJ/1.7 ns/3.2 kHz pulses with near diffraction
Autor:
Takahiro Sugiyama, Hiro Nishida, Akiyoshi Watanabe, Noriaki Miyanaga, Kazuyoshi Hirose, Kenji Ishizaki, Junji Kawanaka, Xiaoyang Guo, Kana Fujioka, Shigeki Tokita, Susumu Noda
Publikováno v:
Applied Physics B. 123
A passively Q-switched Yb:YAG/Cr:YAG laser pumped by a photonic-crystal surface-emitting laser (PCSEL) was developed. Yb:YAG crystal was cryogenically cooled by liquid nitrogen at 77 K. Excellent Gaussian beam profile (M 2 = 1.02) and high slope effi
Autor:
Kazuyoshi Hirose, Hitoshi Kitagawa, Menaka De Zoysa, Yoshinori Tanaka, Akiyoshi Watanabe, Susumu Noda, Takahiro Sugiyama
Publikováno v:
SPIE Proceedings.
Recently, W-class photonic-crystal surface-emitting lasers (PCSELs) with both a single spectrum and narrow spot beam pattern are reported. These highly coherent PCSEL properties cause a highly bright laser light that is useful for various application
Autor:
Yong Liang, Kazuyoshi Hirose, Susumu Noda, Yoshitaka Kurosaka, Akiyoshi Watanabe, Takahiro Sugiyama
Publikováno v:
Nature Photonics. 8:406-411
The applications of surface-emitting lasers, in particular vertical-cavity surface-emitting lasers (VCSELs), are currently being extended to various low-power fields including communications and interconnections. However, the fundamental difficulties
Autor:
Hideki Suzuki, Hirofumi Kan, Shinichi Furuta, Teruo Hiruma, Yujin Zheng, Hirofumi Miyajima, Takeshi Kanzaki, Hiroyasu Fujiwara, Nobuto Kageyama, Satoru Oishi, Kousuke Torii, Akiyoshi Watanabe, Takayuki Uchiyama, Masahiro Miyamoto
Publikováno v:
The Review of Laser Engineering. 36:268-272
Autor:
Akiyoshi, Watanabe
Publikováno v:
二松學舍大學論集. 46:29-42
Autor:
Akiyoshi, WATANABE
Publikováno v:
二松學舍大學東洋學研究所集刊. 32:91-116
Autor:
Susumu Noda, Akiyoshi Watanabe, Yong Liang, Kazuyoshi Hirose, Yoshitaka Kurosaka, Takahiro Sugiyama
Publikováno v:
SPIE Proceedings.
The photonic-crystal surface-emitting laser (PCSEL) is an attractive semiconductor laser in which a thin two-dimensional photonic-crystal (2D-PC) layer is incorporated into the ordinary broad area edge-emitting laser structure to control the longitud
Autor:
Susumu Noda, Takahiro Sugiyama, Kazuyoshi Hirose, Yoshitaka Kurosaka, Yong Liang, Akiyoshi Watanabe
Publikováno v:
SPIE Proceedings.
Photonic crystal surface emitting lasers (PCSELs) have recently been achieved with both a single spectrum and narrow spot beam pattern under several hundred mW of output power. Even though the high coherence properties of PCSELs are expected to be us