Diffractive devices fabricated on azobenezene polymer by polarization laser direct-writing

Peng Hao; Shiyuan Duan; Zhaolou Cao; Shuo Wu; Keyi Wang; Peizheng Yan

doi:10.1117/12.975109

15 October 2012 Diffractive devices fabricated on azobenezene polymer by polarization laser direct-writing

Peng Hao, Shiyuan Duan, Zhaolou Cao, Shuo Wu, Keyi Wang, Peizheng Yan

Proceedings Volume 8418, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems; 84180E (2012) https://doi.org/10.1117/12.975109
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

Abstract

Polarization laser direct-writing system was designed and the recording and research using the azobenzence polymer film on the system was investigated. Only single laser beam was used, and move the laser focal spot on the sample film pointto- point. By composite control of the optical power density, polarization direction and exposure time of the inscribing laser, a special phase-delay distribution graph which have different etching depth in different point can be achieved. Diffractive devices, such as grating and zone plate, have been inscribed. The anisotropy and surface topography was measured by polarizing optical microscopy (POM) and profilometer. Some qualitative analysis was made. Using the red light which is insensitivity to the azo polymer film, the diffractive devices’ focal spots were collected by CCD. Compared with the holographic interference method, the method is more flexible, undemanding for the experimental environment and any two-dimension distribution graph can be written in theory. It may get extensive application.

Citation Download Citation

Peng Hao, Shiyuan Duan, Zhaolou Cao, Shuo Wu, Keyi Wang, and Peizheng Yan "Diffractive devices fabricated on azobenezene polymer by polarization laser direct-writing", Proc. SPIE 8418, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems, 84180E (15 October 2012); https://doi.org/10.1117/12.975109

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KEYWORDS

Polarization

Polymers

Polymer thin films

Laser applications

Laser systems engineering

Charge-coupled devices

Etching

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