Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Hitoshi Sekita"'
Publikováno v:
Applied Surface Science. 265:784-789
This paper demonstrates the fabrication of superhydrophobic soda-lime glass surface by engineering periodic microgratings with self-formed periodic micro-ripples inside the microgratings using a single beam femtosecond laser. The wetting property of
Autor:
Tetsuo Sakai, Makoto Hasegawa, Tomoya Miyanishi, Pierre Viktorovitch, Hitoshi Sekita, Go Obara, Seiji Takeda, Yuto Tanaka, Mitsuhiro Terakawa, Tetsumi Sumiyoshi, Minoru Obara
Publikováno v:
Progress in Quantum Electronics. 36:194-271
The scattering physics of photons is traced back to Rayleigh scattering theory in 1871 and Mie scattering theory in 1908. However, the scattering near field and far field have recently emerged again as a new fundamental physics and innovative nanopro
Publikováno v:
Applied Physics A. 93:189-192
We propose an idea of fast cutting a display glass plate where the sample is pre-processed micromachining single shot rear-surface and internal void arrays aligned on working plane prior to glass cleaving. Single shot void morphology is investigated
Autor:
Tomohiro Imahoko, Hitoshi Sekita, Tetsumi Sumiyoshi, Kazuya Takasago, Minoru Obara, M. Kamata, J. Sakuma
Publikováno v:
Applied Physics B. 89:217-222
We have developed a pulsed Yb:YAG thin disk green laser for pumping a 100 kHz and 10 W femtosecond laser. We optimized numerically and experimentally the open duration of the acousto-optic (AO) Q-switcher and the internal SHG method, generating stabl
Autor:
Tetsumi Sumiyoshi, Kazuya Takasago, Minoru Obara, Tomohiro Imahoko, Katsutoshi Takahashi, Hitoshi Sekita
Publikováno v:
Applied Physics B. 87:629-634
We have developed a 6–12 μm mid-infrared (MIR) femtosecond laser source for glyco-protein structure analysis. The MIR femtosecond laser pulses are generated by a differential frequency generation (DFG) configuration with a combination of Ti:sapphi
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 10:1244-1251
We report pure continuous-wave (CW) high-power (>100 mW) deep-ultraviolet (DUV) light sources emitting around 200-nm spectral region based on singly resonant sum-frequency mixing (SRSFM). Efficient DUV generation is made possible by use of a Brewster
Autor:
T. Takase, Y. Akiyama, M. Sasaki, A. Takada, H. Yuasa, N. Nishida, Ranganathan Kandasamy, Masanobu Yamanaka, Yasukasu Izawa, Sadao Nakai, H. Yoshida, M. Nakai, H. Fujita, N. Miyanaga, M. Nakatsuka, E. Tominaga, M. Fujino, Hirofumi Kan, Hirofumi Miyajima, Takeshi Kanzaki, Minoru Nishihata, Takayuki Uchiyama, Teruo Hiruma, Toshiyuki Kawashima, Tadashi Kanabe, Yasumitsu Okada, Toshihiro Kuroda, Yoshinori Tamaoki, Masahiro Miyamoto, Masahiro Terada, Yoshinori Kato, Masao SATO, Shinya NAITO, Nobuaki IEHISA, Norio KARUBE, Hitoshi Sekita, Akira Shiratori, Tadashi Kasamatsu, Tetsumi Sumiyoshi, Todd Rutherford, Bill Tulloch, Robert Byer, Sho Amano, Takayasu Mochizuki, Shuji Miyamoto, Ainosuke Ando, Kazuhiko Hosono, Daiki MORISHIMA, Keisuke FUKUGAKI, Atsushi SHIMOURA, Akira Watanabe, Takuya Yoda, Toshihiko Sato, Tetsuya Motegi, Tadashi Okuno, S. K. Zhang, M. Fujita, S. Sakabe, C. Yamanaka, Toshifumi Hasama, Jie Jiang, R. Kodama, T. Kase, M. Kadoya, K. Asaba, K. Yamakawa, Junji Kawanaka, Hajime Nishioka, Noboru Uehara, Ken-ichi Ueda, Shinichi Matsuoka, Fumihiko Nakano, Makoto Aoyama, Yutaka Akahane, E. Sano, R. Kubo, Ahsa Moon, Kazuo Imasaki, Naoya Nakao, Nobushisa Ohigashi, Yoshiaki Tsunawaki, Akio Nagai, Kunioki Mima, Shin-ichiro Kuruma, Y. Masaki, K. Kitano, M. Kusaba, M. Goto, Takahiro Inoue, Zhenlin Liu, Kiyoshi Shimamura, Kenji Nakano, Mujilatu Na, Tsuguo Fukuda, Toshimasa Kozeki, Hideyuki Ohtake, Nobuhiko Sarukura, Takeshi Yoshiura, Yuuichi Chisaki, Takayoshi Matsuoka, Yuuji Oki, Mitsuo Maeda, J. Tanoue, N. Izumi, Y. Kuwabara, S. Kubodera, W. Sasaki, Lalit B. Sharma, Yushi Takenaka, Keisuke Furuta, Tetsuo Kojima, K. F. Huang
Publikováno v:
The Review of Laser Engineering. 28:29-43,49
Publikováno v:
Applied Physics B. 69:491-495
We propose a laser-diode-pumped Yb:YAG laser as a novel practical fiber amplifier pump source, and describe its first successful application of high-output-power operation (850 mW=+29.3 dB m) of an Er3+,Yb3+-codoped fiber amplifier at 1.55 μm. We ha
Autor:
Tetsumi Sumiyoshi, Shunichi Sato, Makoto Kikuchi, Tsunenori Arai, Miya Ishihara, Hitoshi Sekita
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 5:936-943
A new medical fiber laser oscillating at two useful wavelengths (3 and 2 /spl mu/m) is reported. We have demonstrated highly efficient and high-power continuous-wave cascade oscillation at room temperature with a holmium ion-doped fluoride glass fibe
Publikováno v:
The Review of Laser Engineering. 24:373-379
We describe a simple-design laser-diode-pumped CW Nd:YAG active-mirror laser and a thermal analysis in the crystal. A CW output power of 2.4 W and an M2 beam-quality value of less than 1.9 at an incident pumping power of 8.9 W have been obtained. Fro