Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Kenzo Nanri"'
Autor:
Shigeru Yamaguchi, Masamori Endo, Kazuyoku Tei, J. Sato, Kana Nemoto, Tomoo Fujioka, Kenzo Nanri
Publikováno v:
Japanese Journal of Applied Physics. 47:6478-6483
We report on a compact trace nitrogen dioxide (NO2) detector based on cavity ringdown spectroscopy (CRDS), using a passively locked external cavity diode laser (PLEC-DL) in the visible wavelength region. Tailoring the spatial mode matching conditions
Autor:
Takahiro Abe, Takashi Yasuda, Shigeru Yamaguchi, Masaaki Tanizaki, Naoomi Miyakawa, Tomoo Fujioka, Kenzo Nanri
Publikováno v:
The Review of Laser Engineering. 36:1261-1264
An optical method of temperature measurement to analyze CO2 laser active medium based on near-infrared absorption spectroscopy with a 1.6-µm distributed-feedback (DFB) semi- conductor laser is described in this paper. The method was used to measure
Publikováno v:
The Review of Laser Engineering. 35:173-179
Autor:
Hideyuki Horisawa, Takakazu Morita, Masamori Endo, Kenzo Nanri, Tomoo Fujioka, Nobuyoshi Ohtani, Shigeru Yamaguchi
Publikováno v:
The Review of Laser Engineering. 34:246-250
Publikováno v:
Japanese Journal of Applied Physics. 43:567-570
The mist singlet oxygen generator (Mist-SOG) for a chemical oxygen iodine laser (COIL) has been developed in order to increase basic hydrogen peroxide (BHP) utilization. It was clarified that the Mist-SOG generated much more water vapor than conventi
Autor:
Masamori Endo, M. Takahashi, Tomoo Fujioka, Fraank K. Tittel, H. Ashizawa, S. Ohara, Shigeru Yamaguchi, Kenzo Nanri
Publikováno v:
Japanese Journal of Applied Physics. 42:1263-1267
A high-power, narrow-linewidth Yb fiber laser with a fiber Bragg grating (FBG) pumped difference frequency generation (DFG) in a periodically poled lithium niobate (PPLN) crystal was investigated in detail. A mid-IR power of approximately 2.3 microW
Publikováno v:
Optical Review. 10:89-95
A GaP microlens for collecting laser light was developed in the tip of a near-field probe. It is important to realize a near-field optical probe head with high throughput and a small spot size. The design and fabrication results of the GaP microlens
Autor:
Masamori Endo, M. Takahashi, Shigeru Yamaguchi, S. Ohara, Kenzo Nanri, Tomoo Fujioka, H. Ashizawa
Publikováno v:
The Review of Laser Engineering. 31:151-155
We demonstrated a mid-IR optical NO2 monitor based on a frequency-stabilized, Yb-fiber laser pumped difference frequency generation (DFG) in a periodically poled lithium niobate (PPLN) crystal. A high power Yb-fiber laser with a fiber Bragg grating (
Publikováno v:
Japanese Journal of Applied Physics. 41:5193-5197
The singlet oxygen generator (SOG) generates singlet oxygen for a chemical oxygen iodine laser (COIL), using the gas-liquid reaction between basic hydrogen peroxide (BHP) and Cl2 gas. The Jet-SOG has been widely used, wherein jet BHP from small orifi
Publikováno v:
The Review of Laser Engineering. 29:153-159
This paper reports the present status of laser diagnostics for trace dioxin detection . Opticalproperties such as infra-red (IR) absorption spectrum, ultra-violet (UV) pump frequencies, ionization potential of typical dioxins and their pre-cursors as