Fast Optical Limiters (OL) with Enhanced Dynamic Range

Fast Optical Limiters (OL) with Enhanced Dynamic Range

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-17-P-1130
Agency Tracking Number: F17A-029-0113
Amount: $149,917.00
Phase: Phase I
Program: STTR
Awards Year: 2017
Solicitation Year: 2017
Solicitation Topic Code: AF17A-T029
Solicitation Number: 2017.0
Small Business Information
PO Box 1567, Williston, VT, 05495
DUNS: 961928673
HUBZone Owned: Y
Woman Owned: Y
Socially and Economically Disadvantaged: Y
Principal Investigator
 Brent Boerger
 PI/Owner
 (802) 659-4800
 brent@photonsci.com
Business Contact
 Jennifer Boerger
Phone: (802) 578-5191
Email: jennifer@photonsci.com
Research Institution
 MIT Lincoln Laboratory
 Vladimir Liberman
 (781) 981-3706
 Federally funded R&D center (FFRDC)
Abstract
Optical limiters (OL) protect sensitive optical and electronic devices from laser-induced damage. The existing passive OL utilize nonlinear optical materials transmitting low-intensity light, while blocking laser radiation with intensity exceeding certain limiting threshold (LT). The common problem with the existing OL is that, at any particular frequency range, the choice of suitable nonlinear optical materials is very limited, or nonexistent. At the same time, the required value of the LT can differ dramatically in different applications. Another problem is that the nonlinear optical material is directly exposed to the high-level laser radiation, often causing overheating, dielectric breakdown, or other irreversible damage of the device. The objective of this proposal is to combine MIT developed metasurfaces, based on thin film phase change materials (GeSbSeTe), with Advanced Photon Sciences (APS) laser systems technology for large scale optical limiting applications. Phase change materials possess a large index switching behavior with a switching speed of <1ns which make them an ideal candidate for optical limiting. Advanced thin film metamaterial designs for wavelengths from 1000 2000 nm will be pursued using existing film capabilities developed recently by MIT and MIT-LL.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government