SBIR-STTR Award

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Advanced laser protection devices based on thermally fixed hidden gratings and reversed-mode PSCT light switches
Award last edited on: 9/11/2014

Sponsored Program
SBIR
Awarding Agency
DOD : Army
Total Award Amount
$99,945
Award Phase
1
Solicitation Topic Code
A13-096
Principal Investigator
Hongzhi Zhao

Company Information

Boston Applied Technologies Inc (AKA: BATi)

6f Gill Street
Woburn, MA 01801
   (781) 935-2800
   sales@bostonati.com
   www.bostonati.com
Location: Multiple
Congr. District: 05
County: Middlesex

Phase I

Contract Number: ----------
Start Date: ----    Completed: ----
Phase I year
2014
Phase I Amount
$99,945
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.

Keywords:
Laser filter, eye protection, hidden hologram, charge compensation, non focal plane, optical limiting, optical, laser, optical attenuation, reversed-mode PSCT light switch

Phase II

Contract Number: ----------
Start Date: ----    Completed: ----
Phase II year
----
Phase II Amount
----