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

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タイトル: Numerical reconstruction of an infrared wavefront utilizing an optical phase modulation device
著者: Miyamoto, Naoki 著作を一覧する
Nisiyama, Shusuke 著作を一覧する
Tomioka, Satoshi 著作を一覧する
Enoto, Takeaki 著作を一覧する
キーワード: Digital holography
Infrared holography
Nitroanisole
Phasemodulation
発行日: 2007年 4月 1日
出版者: Elsevier
誌名: Optics Communications
巻: 272
号: 1
開始ページ: 67
終了ページ: 72
出版社 DOI: 10.1016/j.optcom.2006.11.018
抄録: 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.
Relation (URI): http://www.sciencedirect.com/science/journal/00304018
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/20442
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 富岡 智

 

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