The 76th JSAP Autumn Meeting, 2015

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4 JSAP-OSA Joint Symposia 2015 » 4.5 Information Photonics

[15p-2F-1~15] 4.5 Information Photonics

Tue. Sep 15, 2015 1:45 PM - 7:45 PM 2F (221-2)

Chair:Kazuo Hotate(Univ. of Tokyo),Hirotsugu Yamamoto(Utsunomiya Univ.),Ryoichi Horisaki(Osaka Univ.)

3:45 PM - 4:00 PM

▲ [15p-2F-4] Four-step in-line digital holography simultaneously sensing dual-wavelength information using wavelength-multiplexed holograms

〇Tatsuki Tahara1, Ryota Mori1, Yasuhiko Arai1, Yasuhiro Takaki2 (1.Kansai Univ., 2.Tokyo Univ. Agric. Tech.)

Keywords:Multiwavelength-imaging technique,Phase-division-multiplexing technique,Digital holography

Four-step in-line digital holography simultaneously sensing dual-wavelength based on phase-division multiplexing is proposed. In phase-division multiplexing, wavelength information is multiplexed in the space domain and separately extracted in the polar coordinate plane. This time four-step recording of dual wavelengths is achieved by merging two-step phase-shifting interferometry. Its validity is numerically confirmed.