Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching

J. D. Liou, J. H. Park, M. V. Stinger, A. Diaz, J. Huang, Iam-choon Khoo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a theoretical model and some experiment demonstrations of all-optical passive switching processes with 90° twist-aligned nano-doped nematic liquid crystal cells sandwiched between two crossed polarizers. The photosensitive dopants give rise to laser induced dye-assisted director axis reorientation and order parameter modifications, which in turm produce an intensity dependent polarization switching and hence a transmission modulation capability. Experimental observations are in good agreement with our expectation derived from modified Jones matrix analysis and also demonstrate the feasibility of an efficient [microwatt power] low threshold polarization and fast switching [microseconds] all optical limiting device for visible as well as infrared lasers or bright light sources.

Original languageEnglish (US)
Title of host publicationLiquid Crystals XI
DOIs
StatePublished - Dec 1 2007
EventLiquid Crystals XI - San Diego, CA, United States
Duration: Aug 26 2007Aug 28 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6654
ISSN (Print)0277-786X

Other

OtherLiquid Crystals XI
CountryUnited States
CitySan Diego, CA
Period8/26/078/28/07

Fingerprint

Liquid Crystals
Power Control
Dyes
doped crystals
Power control
Liquid Crystal
Liquid crystals
Broadband
Laser pulses
Coloring Agents
dyes
liquid crystals
Laser
broadband
Polarization
Optical Limiting
pulses
lasers
Matrix Analysis
Infrared lasers

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Liou, J. D., Park, J. H., Stinger, M. V., Diaz, A., Huang, J., & Khoo, I. (2007). Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching. In Liquid Crystals XI [66540T] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6654). https://doi.org/10.1117/12.732431
Liou, J. D. ; Park, J. H. ; Stinger, M. V. ; Diaz, A. ; Huang, J. ; Khoo, Iam-choon. / Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching. Liquid Crystals XI. 2007. (Proceedings of SPIE - The International Society for Optical Engineering).
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abstract = "We present a theoretical model and some experiment demonstrations of all-optical passive switching processes with 90° twist-aligned nano-doped nematic liquid crystal cells sandwiched between two crossed polarizers. The photosensitive dopants give rise to laser induced dye-assisted director axis reorientation and order parameter modifications, which in turm produce an intensity dependent polarization switching and hence a transmission modulation capability. Experimental observations are in good agreement with our expectation derived from modified Jones matrix analysis and also demonstrate the feasibility of an efficient [microwatt power] low threshold polarization and fast switching [microseconds] all optical limiting device for visible as well as infrared lasers or bright light sources.",
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Liou, JD, Park, JH, Stinger, MV, Diaz, A, Huang, J & Khoo, I 2007, Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching. in Liquid Crystals XI., 66540T, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6654, Liquid Crystals XI, San Diego, CA, United States, 8/26/07. https://doi.org/10.1117/12.732431

Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching. / Liou, J. D.; Park, J. H.; Stinger, M. V.; Diaz, A.; Huang, J.; Khoo, Iam-choon.

Liquid Crystals XI. 2007. 66540T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6654).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - We present a theoretical model and some experiment demonstrations of all-optical passive switching processes with 90° twist-aligned nano-doped nematic liquid crystal cells sandwiched between two crossed polarizers. The photosensitive dopants give rise to laser induced dye-assisted director axis reorientation and order parameter modifications, which in turm produce an intensity dependent polarization switching and hence a transmission modulation capability. Experimental observations are in good agreement with our expectation derived from modified Jones matrix analysis and also demonstrate the feasibility of an efficient [microwatt power] low threshold polarization and fast switching [microseconds] all optical limiting device for visible as well as infrared lasers or bright light sources.

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Liou JD, Park JH, Stinger MV, Diaz A, Huang J, Khoo I. Nonlinear dye-doped liquid crystals for fast and broadband CW and long-pulse laser power control and switching. In Liquid Crystals XI. 2007. 66540T. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.732431