Superimposing interferogram method using a multi-slit array to enhance sensitivity and interference definition of spatial-phase-shift interferometers
Superimposing interferogram method using a multi-slit array to enhance sensitivity and interference definition of spatial-phase-shift interferometers
复制标题
利用多缝阵列叠加干涉图方法提高空间相移干涉仪的灵敏度和干涉清晰度
DOI:
10.1007/s10043-020-00626-4
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发表时间:
2020
期刊:
影响因子:
1.2
通讯作者:
Ishimaru Ichiro
中科院分区:
文献类型:
--
作者:
Kawashima Natsumi;Kitazaki Tomoya;Nogo Kosuke;Nishiyama Akira;Wada Kenji;Ishimaru Ichiro
We propose a superimposing interferogram method to enhance the sensitivity and interference definition of spatial-phase-shift interferometers. The proposed method uses a multi-slit array as a redesigned field stop for the spatial-phase-shift interferometer. The widths of the apertural and blocked areas correspond to half the wavelength of the fringe pattern on the imaging plane and determine the wavelength that improves the interference definition while eliminating those wavelengths that worsen it, thus improving the interference definition of the interferogram. Additionally, to improve the interferometer’s sensitivity, several apertural areas were aligned to increase the amount of incident light. We performed spectroscopic measurements and confirmed improvements in both the sensitivity and the interference definition using a prototype of a bean-sized mid-infrared spectroscopic imager based on a one-shot Fourier spectroscope and a prototype multi-slit array. Although mid-infrared light is absorbed well by water and its intensity is thus weak for detection using the array sensors of cameras, mid-infrared spectroscopic imagers that incorporate our proposed method can be used for biomedical measurements of samples containing water.
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影响因子:
1.6
作者:
PADGETT, MJ;HARVEY, AR
通讯作者:
HARVEY, AR
影响因子:
1.9
作者:
Qi, Wei;Suzuki, Yo;Ishimaru, Ichiro
通讯作者:
Ishimaru, Ichiro
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Shun Sato;W. Qi;N. Kawashima;Kosuke Nogo;S. Hosono;A. Nishiyama;Kenji Wada;I. Ishimaru
通讯作者:
I. Ishimaru
DOI:
10.1117/2.1201301.004601
发表时间:
2013
期刊:
影响因子:
--
作者:
Y. Ferrec;J. Primot
通讯作者:
J. Primot
DOI:
10.1117/12.826541
发表时间:
2009
期刊:
Optical Engineering + Applications
影响因子:
--
作者:
Mel Ni;G. Feller;J. W. Irwin;James E. Mason;J. Mudge
通讯作者:
J. Mudge