Gradient index liquid crystal devices and method of fabrication thereof

Lee, Jae-Cheul; Jacobs, Stephen

Title: Gradient index liquid crystal devices and method of fabrication thereof

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Abstract

Laser beam apodizers using cholesteric liquid crystals provides soft edge profile by use of two separate cholesteric liquid crystal mixtures with different selective reflection bands which in an overlap region have a gradient index where reflectivity changes as a function of position. The apodizers can be configured as a one-dimensional beam apod INTRODUCTION The U.S. government has rights in the invention under Contract No. DE-FC03-85DP40200 between the University of Rochester and the Department of Energy.

Inventors:

Lee, Jae-Cheul ^[1]; Jacobs, Stephen ^[2]

Rochester, NY
Pittsford, NY

Issue Date:: 1991-01-01

Research Org.:: Univ. of Rochester, NY (United States)

OSTI Identifier:: 868044

Patent Number(s):: 5061046

Assignee:: University of Rochester (Rochester, NY)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B27/58 - Optics for apodization or superresolution
G02B27/09 - Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for {

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H01S3/005 - {Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B5/3016 - {involving passive liquid crystal elements

G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
G02F1/1341 - Filling or closing of cells

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B27/0927 - {Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat}

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C09K19/38 - Polymers

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DOE Contract Number:: FC03-85DP40200

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: gradient; index; liquid; crystal; devices; method; fabrication; laser; beam; apodizers; cholesteric; crystals; provides; soft; edge; profile; separate; mixtures; selective; reflection; bands; overlap; region; reflectivity; changes; function; position; configured; one-dimensional; apod; introduction; government; rights; contract; de-fc03-85dp40200; university; rochester; department; energy; gradient index; liquid crystals; laser beam; liquid crystal; selective reflection; cholesteric liquid; crystal devices; crystal device; /349/

Citation Formats


                    Lee, Jae-Cheul, and Jacobs, Stephen. Gradient index liquid crystal devices and method of fabrication thereof.  United States: N. p., 1991. 
        Web.

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                    Lee, Jae-Cheul, & Jacobs, Stephen. Gradient index liquid crystal devices and method of fabrication thereof.  United States.

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                    Lee, Jae-Cheul, and Jacobs, Stephen. Tue .  
        "Gradient index liquid crystal devices and method of fabrication thereof".  United States.  https://www.osti.gov/servlets/purl/868044.

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@article{osti_868044,

  title        = {Gradient index liquid crystal devices and method of fabrication thereof},

  author       = {Lee, Jae-Cheul and Jacobs, Stephen},

  abstractNote = {Laser beam apodizers using cholesteric liquid crystals provides soft edge profile by use of two separate cholesteric liquid crystal mixtures with different selective reflection bands which in an overlap region have a gradient index where reflectivity changes as a function of position. The apodizers can be configured as a one-dimensional beam apod INTRODUCTION The U.S. government has rights in the invention under Contract No. DE-FC03-85DP40200 between the University of Rochester and the Department of Energy.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1991},

  month        = {1}

}

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