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Advanced laser protection devices based on thermally fixed hidden gratings and reversed-mode PSCT light switches

Award Information
Agency: Department of Defense
Branch: Army
Contract: W15QKN-14-C-0021
Agency Tracking Number: A132-096-0691
Amount: $99,945.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A13-096
Solicitation Number: 2013.2
Solicitation Year: 2013
Award Year: 2014
Award Start Date (Proposal Award Date): 2014-06-09
Award End Date (Contract End Date): 2014-12-06
Small Business Information
Woburn, MA 01801-1721
United States
DUNS: 114584175
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Hongzhi Zhao
 Sr. Staff Scientist
 (781) 935-2800
Business Contact
 Yingyin Zou
Title: President
Phone: (781) 935-2800
Research Institution

This proposal is to develop a non focal plane laser protection device for the Army and other DoD agencies. The device will be composed of single-crystal plates with hidden reflective/diffraction gratings, which can be revealed with exposure to strong pulsed or continuous laser, and a reversed-mode polymer-stabilized-cholesteric-texture (PSCT) light switch. This proposed device can change from a high transmission state (80%) to a very low transmission state (35 50 dB) to block strong light pulse or continuous within short time scale (subnanosecond). In the entire visible and NIR waveband, higher transmittance is anticipated with efforts on deposition of anti-reflective coatings. This protection device features large in aperture, broad in transparent window and in field of view, wavelength-insensitive, and fast in response.

* Information listed above is at the time of submission. *

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