1996 Fiscal Year Final Research Report Summary
Polarization Switching Device using Bacteriorhodopsin
| Project/Area Number |
07650047
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
OKADA Yoshiko (首藤 佳子) The University of Electro-Communications, Research Associate in Electronic Department, 電気通信学部, 助手 (50231212)
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| Co-Investigator(Kenkyū-buntansha) |
TOMIOKA Hiroaki Saitama University Associate Professor in Cemistry Department, 教育学部, 助教授 (50212072)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Bacteriorhodopsin / Photochromism / Polarization recording / Optical switching / Nonlinear optics / Real-time holography |
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| Research Abstract |
Bacteriorhodopsin (bR) is a photosensitive protein that shows remarkable anisotro This photoinduced anisotropy enables one to record the polarization hologram.
We proposed a new photonic switching device with erasable focusing lens, Zone Plate, using bR.The arrangement employed to obtain the Zone Plate is Mach-Zehnder interferometer using 515 nm line of Ar-ion laser. In one of the write beams, a spherical lens is inserted. At the exit of the interferometer and at a determined distance, the bR film is placed on which the circular Zone Plate is recorded by means of the coherent superposition of thr plane and spherical wavefronts. Probe beams that have different wavelength travel with one of the write beams and irradiates the Zone Plate, which forms images of light source points respectively.
Using above Zone Plate, we demonstrated the wavelength demultiplexer and optical switching where information is carrued by orthogonal polarization states.
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