Invention Grant
- Patent Title: Patterned polarization converter
- Patent Title (中): 图案偏振转换器
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Application No.: US14553539Application Date: 2014-11-25
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Publication No.: US09383607B2Publication Date: 2016-07-05
- Inventor: Tao Du , Vladimir Grigorievich Chigrinov , Hoi Sing Kwok
- Applicant: The Hong Kong University of Science and Technology
- Applicant Address: CN Hong Kong
- Assignee: The Hong Kong University of Science and Technology
- Current Assignee: The Hong Kong University of Science and Technology
- Current Assignee Address: CN Hong Kong
- Agency: Leydig, Voit & Mayer, Ltd.
- Main IPC: G01J4/00
- IPC: G01J4/00 ; G02F1/1337 ; G02B5/30 ; G02B27/28 ; G02F1/01 ; G02F1/13 ; G02F1/13363

Abstract:
The present invention provides a patterned polarization converter having multiple domains that can be used to convert input linear polarized light to output light with spatially varying polarization states, including domains that produce linearly polarized light and domains that produce circular polarized light based on the patterning of the domains. A patterned polarization converter having multiple domains may be used in a polarization sensor application capable of detecting the polarization state of input light. The present invention further provides patterned radial and azimuthal polarization converters, which have utility in applications such as optical tweezers. Additionally, patterned polarization converters may be used to fabricate more patterned polarization converters having the same pattern using one-step photoalignment to copy the pattern of an existing patterned polarization converter to an unpatterned photoalignment layer.
Public/Granted literature
- US20150079302A1 Patterned Polarization Converter Public/Granted day:2015-03-19
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