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유장우(Jangwoo You),안정호(Jeongho Ahn),김대석(Daesuk Kim),관윤근(Yoonkeun Kwak),김수현(Soohyun Kim),이윤우(Yunwoo Lee),황인덕(In Duk Whang) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Spectral resolution enhancement method of Acousto-Optic Tunable Filter (AOTF) using incident light angle variation is described. AOTF is a small, mechanically rigid, high speed and spectral resolution light tunable filter. The basic theory of AOTF and its experimental verification is described. AOTF can generate two opposite polarized light simultaneously which wavelength can be changed by incident angle variation. We focused on the common region of two filtered light at the specific incident angle. This region can be used to enhance the spectral resolution of AOTF.