Zobrazeno 1 - 10
of 72
pro vyhledávání: '"T. Kanetake"'
Publikováno v:
Frontiers in Optics + Laser Science APS/DLS.
We investigate decrease of laser efficiency in blue diode-laser-pumped continuous-wave Ti:sapphire laser. We confirmed that the pump-induced loss may cause decrease of the mode-overlapping efficiency.
Autor:
S. Kataoka, H. Yamakawa, Yoshiteru Aoyagi, T. Kanetake, R. Kobayashi, F. Sugiki, K. Tomizawa, S. Maeda, N. Nakajima, Sakae Kawato, M. Shibata
Publikováno v:
Frontiers in Optics / Laser Science.
We theoretically analyzed the optical-to-optical conversion efficiency of a CW hemispherical short cavity Yb:YAG laser which pump source is a single-emitter-laser-diode. As a result, the maximum efficiency of 78.6% was obtained by high intensity pump
Autor:
H. Kadoya, R. Kobayashi, N. Nakajima, S. Kataoka, Sakae Kawato, K. Hayashi, T. Kanetake, F. Sugiki, S. Inayoshi
Publikováno v:
Conference on Lasers and Electro-Optics.
Highest efficiencies of CW-Ti:sapphire laser were obtained by using the high gain architecture. The maximum optical-to-optical conversion efficiency and slope efficiency are 31.7% and 41.9% for the incident pump power, respectively.
Autor:
T. Sato, N. Nakajima, Sakae Kawato, T. Kanetake, S. Kataoka, F. Sugiki, K. Hayashi, T. Nishi, M. Onishi, R. Kobayashi, H. Kadoya
Publikováno v:
Frontiers in Optics 2017.
Publikováno v:
Frontiers in Optics 2017.
The efficiency of a blue laser-diode-pumped CW Ti:sapphire laser was investigated theoretically. The maximum optical-to-optical conversion efficiency was obtained to be 20.4% at a pump power of 14W, with a high cavity loss of 20%.
Autor:
Sakae Kawato, S. Inayoshi, H. Kadoya, H. Sugiki, T. Sato, M. Wang, M. Morioka, K. Hayashi, T. Kanetake, N. Nakajima
Publikováno v:
Frontiers in Optics 2016.
Autor:
M. Morioka, Sakae Kawato, T. Kanetake, H. Sugiki, K. Hayashi, H. Kadoya, N. Nakajima, T. Sato, S. Inayoshi, M. Wang
Publikováno v:
Frontiers in Optics 2016.
Publikováno v:
Journal of Applied Physics. 72:938-947
The quasi‐epitaxial growth of vacuum‐deposited films of diacetylenes on various substrates, including uniaxially aligned polymer surfaces formed with rubbing treatment or Langmuir–Blodgett technique, is reported. The oriented polydiacetylene (P
Autor:
Takao Koda, T. Kanetake, Ken Ishikawa, Kenji Takeda, Hayao Kobayashi, Tatsuo Hasegawa, K. Kubodera
Publikováno v:
Chemical Physics Letters. 171:239-244
The third-order nonlinear optical susceptibility |χ(3)| has been evaluated for blue- and red-form polydiacetylene (PDA) oriented films by means of the Maker fringe method. For the red-form PDA, care was taken to minimize the conformation disorder ef
Autor:
Hayao Kobayashi, Takao Koda, T. Kanetake, K. Kubodera, Kenji Takeda, Ken Ishikawa, Tatsuo Hasegawa
Publikováno v:
Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics. 183:329-332
Third-order nonlinear optical susceptibilities |χ (3) | of the blue and red phase polydiacetylene (poly-5,7-dodecadiyne-1,12-di-n-butyl urethane) films have been evaluated by third harmonic generation measurements in the fundamental wavelength regio