Characterization of a Confocal Microscope Readout System in a Photochromic Polymer under Two-Photon Excitation

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概要

• 論文の詳細を見る

• We present a detailed experimental characterization of a confocal microscope readout system in a photochromic polymer under two-photon excitation. In particular, the effect of writing power, exposure time and recording depth on the contrast of the readout signal is explored. The reflected intensity of the recorded data bits is shown to be strongly dependent on the intensity of the writing laser and exposure time. The relative intensity initially shows an I^2 dependence on power, followed by saturation. The saturation effect is also evident as exposure time is varied. These saturation features allow for reading of the stored bits with objectives whose numerical aperture is less than that used for writing (1.4 N.A.). Furthermore, a decrease in contrast is observed with an increase in layer depth.

• 社団法人応用物理学会の論文
• 2002-08-15

著者

• KAWATA Satoshi

  Department of Chemistry, Graduate School of Science, Osaka University

• Kawata Satoshi

  Department Of Applied Physics Graduate School Of Engineering Osaka University

• Gu M

  Centre For Micro-photonics School Of Biophysical Sciences And Electrical Engineering Swinhurne Unive

• AMISTOSO Jose

  National Institute of Physics, University of the Philippines, Dili,nan, Quezon City

• GU Min

  Centre for Micro-Photonics, School of Biophysical Sciences and Electrical Engineering, Swinhurne Uni

• Amistoso Jose

  National Institute Of Physics University Of The Philippines Dili Nan Quezon City

• Kawata Satoshi

  Department Of Appkied Physicy Osaka University

• Gu Min

  Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn 3122, VIC, Australia

• Kawata Satoshi

  Department of Applied Physics, Osaka University

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