Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Kyoichi Deki"'
Autor:
Kyoichi Deki, Yasu Ohsako, Toshio Yokota, Yusuke Mori, Takatomo Sasaki, Andrew Finch, Naoki Kitatochi, Masahiro Horiguchi, Jun Sakuma
Publikováno v:
IEEJ Transactions on Electronics, Information and Systems. 120:922-930
Autor:
Toshio Yokota, Yasu Ohsako, Jun Sakuma, Kyoichi Deki, Masahiro Horiguchi, Takatomo Sasaki, Andrew Finch, Yusuke Mori
Publikováno v:
The Review of Laser Engineering. 27:525-530
Two sum-frequency mixing scheme for 193-nm generation have been investigated using CLBO as the final mixing crystal. One scheme mixes the output of an optical parametric oscillator, operating at 2.1μm, with the 5th harmonic of a Nd: YAG laser. The s
Publikováno v:
The Review of Laser Engineering. 22:834-842
A simple automatic alignment control of the optical axis of the laser cavity, astable He pressure sensor, and the reduction of laser noise are described for newly developd 325nm He-Cd+ lasers. Furthermore, the isotope shift of 325nm Cd+ transition is
Publikováno v:
SPIE Proceedings.
Compact short pulse (200 - 350 ps) laser systems using SBS and SRS pulse compression techniques have been constructed. Fine processing of aluminum nitride and silicon wafer has been studied by using these laser pulses and compared with the results pr
Autor:
Kyoichi Deki, Yasu Ohsako, Masahiro Horiguchi, Toshio Yokota, Takatomo Sasaki, Andrew Finch, Jun Sakuma, Yusuke Mori
Publikováno v:
SPIE Proceedings.
We describe an all solid-state, high power, deep-UV (DUV) source based on sum-frequency mixing (SFM) of two single- frequency laser outputs. The system consists of a CW diode- pumped, Q-switched Nd:YLF laser operating at 1047 nm, a Ti:sapphire laser
Publikováno v:
SPIE Proceedings.
The first all-solid-state laser system generating 1 W of 196 nm light at a 5-kHz pulse-repetition rate has been developed. The laser system consists of a Neodymium:Yttrium Lithium Fluoride maser oscillator power amplifier operating at 5 kHz, a single
Publikováno v:
SPIE Proceedings.
A novel mechanism to alleviate the thermal dephasing of nonlinear optical crystal was developed. We named it temperature-profile compensation as defined from the in-situ temperature-profile measurement. Based on the concept of this mechanism, design
Autor:
Kunio Yoshida, Masahiro Horiguchi, Yusuke Mori, Takatomo Sasaki, Takahiro Inoue, Tomosumi Kamimura, Masahiro Nakatsuka, Masashi Yoshimura, Hidetsugu Yoshida, Kyoichi Deki
Publikováno v:
SPIE Proceedings.
This paper investigates ion etching process to the surface of CsLiB 6 O 10 (CLBO) crystal. Laser-induced surface damage was reduced and surface durability of CLBO crystal was improved by removing the subsurface embedded polishing compound. There was
Publikováno v:
Japanese Journal of Applied Physics. 39:L1224
We compared the 194 nm output energy of a type-I phase-matched CsB3O5 (CBO) with that of a type-II phase-matched CsLiB6O10 (CLBO) crystal. Using CBO crystal, we generated deep ultraviolet light at 194 nm by sum-frequency conversion of 2 µm band ligh
Publikováno v:
Japanese Journal of Applied Physics. 17:1593-1597
The decay rates of the upper laser levels of He–CdII and He–ZnII lasers have been measured utilizing the magnetic field tuning dip, and the variations of these decay rates with He pressure are studied. The spontaneous decay rates of CdII and ZnII