|Posted date||Jul 24, 2013|
|International application number||2012JP067488|
|International publication number||WO 2013/008784|
|Date of international filing||Jul 9, 2012|
|Date of international publication||Jan 17, 2013|
[Problem] To provide an optical coherence tomograph capable of achieving size reduction and cost reduction attendant thereon, and a detection unit used therein. [Solution] An optical coherence tomograph (100) is provided with a detection unit (200) which comprises an optical polarization element (250) and detects polarization components at each wavelength while an interference polarized beam generated by causing an object reflected light beam and a reference reflected light beam to interfere with each other is separated at each wavelength. The optical polarization element (250) is configured such that the separated interference polarized beams at respective wavelengths are incident in parallel thereon in order of wavelength, and configured to have a birefringence characteristic having a first refractive index and a second refractive index that are provided with a predetermined condition, and while transmitting the incident interference polarized beam at each wavelength therethrough, to separate the interference polarized beam into polarization components and emit the separated polarization components at each wavelength in the same direction along different optical axes.
|IPC(International Patent Classification)||
Contact Information for " ELLIPSOMETRY SYSTEM "
- UTSUNOMIYA UNIVERSITY (In Japanese)学術研究部 産学連携課
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