国际光学工程学会
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作者:Takashi Katagiri , Keisuke Yaegashi , Yuji Matsuura
来源:[J].Optical Engineering(IF 0.88), 2017, Vol.56 (8), pp.080503-080503SPIE
摘要:The configuration of a gas analysis system using the combination of a single-wavelength quantum cascade laser and a hollow-optical-fiber gas cell was optimized to improve measurement sensitivity. On the basis of theoretical calculation, a 6-m looped fiber gas cell was introduced ...
作者:Takashi Katagiri , Takahiro Suzuki , Yuji Matsuura
来源:[J].Optical Engineering(IF 0.88), 2018, Vol.57 (5), pp.054104-054104SPIE
摘要:For gas analysis systems based on terahertz time-domain spectroscopy (THz-TDS), relatively complex systems have been proposed to enhance the sensitivity to measure small amounts of gas. This paper proposes a simple system comprising a hollow optical fiber with an inner dielectric...
作者:... Saiko Kino , Takashi Katagiri , Yuji Matsuura
来源:[J].Optical Engineering(IF 0.88), 2013, Vol.52 (1), pp.013601-013601SPIE
摘要:We optimized the configuration of a hollow-fiber gas cell used in a Fourier-transform infrared spectroscopy system for quantitative analyses of low-concentration gas components with small sample volume. Numerical calculation shows that the signal-to-noise ratio (SNR) of this...
作者:Ryo Ichikawa , Takashi Katagiri , Yuji Matsuura
来源:[J].Optical Engineering(IF 0.88), 2013, Vol.52 (10), pp.106104-106104SPIE
摘要:Low-loss hollow waveguides with a multiple dielectric layer are designed and fabricated for use in cavity ring-down spectroscopy (CRDS). Calculations of the waveguide design revealed that hollow waveguides for infrared CRDS system need to have transmission loss of 0.1 dB / m...

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