TY - JOUR
KW - Absorption spectroscopy
KW - Fourier transform spectroscopy
KW - Frequency combs
KW - High resolution spectroscopy
KW - Molecular spectroscopy
KW - Time resolved spectroscopy
AU - Kana Iwakuni
AU - Thinh Bui
AU - J. Niedermeyer
AU - T. Sukegawa
AU - Jun Ye
AB - We have developed a dispersive spectrometer by using a compact immersion grating for direct frequency comb spectroscopy in the long-wave infrared region of 8-10 \&\#x03BC;m for the first time. A frequency resolution of 460 MHz is achieved, which is the highest reported in this wavelength region with a dispersive spectrometer. We also demonstrate individual comb mode-resolved imaging by cavity filtering and apply this to obtain spectra of both simple and complex molecular spectra. These results indicate that the immersion grating spectrometer offers the next advancement for sensitive, high-resolution spectroscopy of transient and large/complex molecules when combined with cavity enhancement and cooling techniques.
BT - Opt. Express
DA - 2019-02
DO - 10.1364/OE.27.001911
M1 - 3
N2 - We have developed a dispersive spectrometer by using a compact immersion grating for direct frequency comb spectroscopy in the long-wave infrared region of 8-10 \&\#x03BC;m for the first time. A frequency resolution of 460 MHz is achieved, which is the highest reported in this wavelength region with a dispersive spectrometer. We also demonstrate individual comb mode-resolved imaging by cavity filtering and apply this to obtain spectra of both simple and complex molecular spectra. These results indicate that the immersion grating spectrometer offers the next advancement for sensitive, high-resolution spectroscopy of transient and large/complex molecules when combined with cavity enhancement and cooling techniques.
PB - OSA
PY - 2019
SP - 1911
EP - 1921
T2 - Opt. Express
TI - Comb-resolved spectroscopy with immersion grating in long-wave infrared
UR - http://www.opticsexpress.org/abstract.cfm?URI=oe-27-3-1911
VL - 27
ER -