Fabry-Perot interferometer scanned by geometric phase

被引：0
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作者：
Ohno, Seigo [1 ]
机构：
[1] Tohoku Univ, Dept Phys, Aoba Ku, 6-3 Aramaki, Sendai, Miyagi 9808578, Japan
来源：
2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2018年
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D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel method to scan a Fabry-Perot (FP) interferometer is introduced. A geometric phase shifter consisting a rotating half wave plate (HWP) sandwiched between two fixed quarter wave plates is supposed to be confined within a FP cavity. When the HWP is rotated, the axis modes of the FP cavity shift one-way in the spectral space without any mirror scanning. This method will provide a method to measure frequency resolved spectra precisely under the situation that the absorption loss during the round trip changes if a mirror is scanned, such as the absorption by the environmental water vapor can not be ignored.
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