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Development of vacuum‐ultraviolet circular dichroism measurement system using a polarizing undulator
Author(s) -
Tanaka Masahito,
YagiWatanabe Kazutoshi,
Yamada Toru,
Kaneko Fusae,
Nakagawa Kazumichi
Publication year - 2006
Publication title -
chirality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.43
H-Index - 77
eISSN - 1520-636X
pISSN - 0899-0042
DOI - 10.1002/chir.20234
Subject(s) - undulator , chemistry , circular dichroism , vibrational circular dichroism , optics , circular polarization , mueller calculus , magnetic circular dichroism , spectral line , polarization (electrochemistry) , wavelength , linear dichroism , ultraviolet , chirality (physics) , dichroism , radiation , polarimetry , physics , crystallography , nambu–jona lasinio model , chiral symmetry breaking , quantum mechanics , quark , astronomy , scattering , microstrip
We have developed an improved circular dichroism (CD) and linear dichroism (LD) simultaneous measurement system for the vacuum ultraviolet (VUV) region by polarization modulation techniques using a four‐period Onuki‐type crossed undulator as a polarized light source. The system has been constructed at the VUV beamline BL‐5 in the electron storage ring TERAS, at AIST. Our improvements, in particular the adoption of an optical chopper as the detection method of incident light, have resulted in a flat baseline and a consequent simplification of the Mueller matrix calculation for our optical system. Based on the Mueller matrix calculation, we have successfully measured real VUV‐CD and LD spectra of leucine films for wavelengths down to 160 nm with absolute optical constants. The obtained spectra show good consistency with spectra measured by conventional methods. © 2006 Wiley‐Liss, Inc. Chirality