Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems

Marshall, Kenneth L

Title: Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems

Abstract

Liquid crystal point diffraction interferometer (LCPDI) systems that can provide real-time, phase-shifting interferograms that are useful in the characterization of static optical properties (wavefront aberrations, lensing, or wedge) in optical elements or dynamic, time-resolved events (temperature fluctuations and gradients, motion) in physical systems use improved LCPDI cells that employ a "structured" substrate or substrates in which the structural features are produced by thin film deposition or photo resist processing to provide a diffractive element that is an integral part of the cell substrate(s). The LC material used in the device may be doped with a "contrast-compensated" mixture of positive and negative dichroic dyes.

Inventors:

Marshall, Kenneth L ^[1]

Rochester, NY

Issue Date:: 2009-02-17

Research Org.:: The University of Rochester (Rochester, NY)

Sponsoring Org.:: USDOE

OSTI Identifier:: 988293

Patent Number(s):: 7492439

Application Number:: 10/945,753

Assignee:: The University of Rochester (Rochester, NY)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT

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

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G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
G01J2005/583 - {Interferences, i.e. fringe variation with temperature}
G01J2009/0223 - {Common path interferometry
G01J9/02 - by interferometric methods

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
G02F1/1313 - {specially adapted for a particular application}
G02F1/133504 - {Diffusing, scattering, diffracting elements
G02F1/13394 - {spacers regularly patterned on the cell subtrate, e.g. walls, pillars
G02F1/13725 - {based on guest-host interaction
G02F2203/22 - diffractive

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DOE Contract Number:: FC03-92SF19460

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Marshall, Kenneth L. Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems.  United States: N. p., 2009. 
        Web.

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                    Marshall, Kenneth L. Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems.  United States.

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                    Marshall, Kenneth L. Tue .  
        "Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems".  United States.  https://www.osti.gov/servlets/purl/988293.

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@article{osti_988293,

  title        = {Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems},

  author       = {Marshall, Kenneth L},

  abstractNote = {Liquid crystal point diffraction interferometer (LCPDI) systems that can provide real-time, phase-shifting interferograms that are useful in the characterization of static optical properties (wavefront aberrations, lensing, or wedge) in optical elements or dynamic, time-resolved events (temperature fluctuations and gradients, motion) in physical systems use improved LCPDI cells that employ a "structured" substrate or substrates in which the structural features are produced by thin film deposition or photo resist processing to provide a diffractive element that is an integral part of the cell substrate(s). The LC material used in the device may be doped with a "contrast-compensated" mixture of positive and negative dichroic dyes.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2009},

  month        = {2}

}

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Works referenced in this record:

Recent advances in the development of phase-shifting liquid crystal interferometers for visible and near-IR applications
conference, November 2003

Marshall, Kenneth L.; Klehn, Brett; Watson, Bryan
Optical Science and Technology, SPIE's 48th Annual Meeting, SPIE Proceedings
https://doi.org/10.1117/12.506025

Liquid-crystal point-diffraction interferometer for wave-front measurements
journal, January 1996

Mercer, Carolyn R.; Creath, Katherine
Applied Optics, Vol. 35, Issue 10
https://doi.org/10.1364/AO.35.001633

Liquid-crystal point-diffraction interferometer
journal, January 1994

Mercer, Carolyn R.; Creath, Katherine
Optics Letters, Vol. 19, Issue 12
https://doi.org/10.1364/OL.19.000916

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Similar Records

Title: Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems

Abstract

Citation Formats

Recent advances in the development of phase-shifting liquid crystal interferometers for visible and near-IR applications conference, November 2003

Liquid-crystal point-diffraction interferometer for wave-front measurements journal, January 1996

Liquid-crystal point-diffraction interferometer journal, January 1994

Recent advances in the development of phase-shifting liquid crystal interferometers for visible and near-IR applications
conference, November 2003

Liquid-crystal point-diffraction interferometer for wave-front measurements
journal, January 1996

Liquid-crystal point-diffraction interferometer
journal, January 1994