2024-03-29T01:47:40Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/171112022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Stabilization of a channeled spectropolarimeter by self-calibrationTaniguchi, Atsushi1000000194324Oka, KazuhikoOkabe, HiroshiHayakawa, Masayukiopen access© 2006 Optical Society of America, Inc.Ellipsometry and polarimetryPolarimetrySpectrometers and spectroscopic instrumentation425A novel method to stabilize a channeled spectropolarimeter is described. The fluctuating retardations of the high-order retarders used in the spectropolarimeter are calibrated in parallel to the measurement of the wavenumber-dependent state of polarization (SOP) of light. Both the calibration of the retarders and the measurement of the SOP can be made simultaneously using a single light to be measured, and hence the resultant wavenumber-dependent SOP is almost immune to fluctuation of the retardations. The effectiveness of this method is experimentally demonstrated with retardation fluctuations induced by a temperature change up to 40°C.Optical Society of America2006-11-15engjournal articleAMhttp://hdl.handle.net/2115/171110146-9592Optics Letters312232793281https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/17111/1/OL31-22.pdfapplication/pdf287.21 KB2006-11-15