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Numerical reconstruction of an infrared wavefront utilizing an optical phase modulation device

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Title: Numerical reconstruction of an infrared wavefront utilizing an optical phase modulation device
Authors: Miyamoto, Naoki Browse this author
Nisiyama, Shusuke Browse this author →KAKEN DB
Tomioka, Satoshi Browse this author →KAKEN DB
Enoto, Takeaki Browse this author
Keywords: Digital holography
Infrared holography
Issue Date: 1-Apr-2007
Publisher: Elsevier
Journal Title: Optics Communications
Volume: 272
Issue: 1
Start Page: 67
End Page: 72
Publisher DOI: 10.1016/j.optcom.2006.11.018
Abstract: We utilize nitroanisole, that absorbs infrared(IR) radiation as heat, as an optical modulation device based on a thermal process. The nitroanisole exhibits a thermal lens effect, i.e. a temperature dependent refractive index. Hence, the nitroanisole can induce phase modulation to visible light, in direct response to intensity of the incident IR radiation. The proposed method can be used to obtain the phase modulation distribution that corresponds to the IR intensity distribution, i.e. the IR hologram itself, on the nitroanisole by examining the phase map of visible light that is modulated upon passing through the nitroanisole. The IR wavefront can be reconstructed by calculating extracted IR holograms through the Fresnel transform. It is verified that both the amplitude and the phase of the IR wavefront can be reconstructed accurately by proposed method.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 富岡 智

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