Accession Number:

ADA273940

Title:

Microtubules for Nonlinear Optical Limiting

Descriptive Note:

Final rept.,

Corporate Author:

SOUTHWEST RESEARCH INST SAN ANTONIO TX

Report Date:

1993-12-03

Pagination or Media Count:

99.0

Abstract:

The effort in visible laser eye and sensor protection has focused on several problems, one of which was the threshold for laser eye damage of 1.0-0.1 microjoule micro Jcm2 or 1000-100 Wcm2 for a nanosecond pulse over a broad wavelength range form 400-700 nm. This value is the so-called clamping threshold which is the maximum intensity permitted to exit the optical device, regardless of the input intensity. The most interest was concentrated in finding a solution for nanosecond threats by a retrofit of existing equipment binoculars, periscope viewers, etc., or by fabrication into a simple set of goggles or a visor. This very low clamping threshold, or course, requires a very highly nonlinear material that is fast and operates over a wide frequency range. The nonlinear materials work can be classified into the following types 1 Liquid crystals 2 Organometallics and polymers 3 Ultrarapid crystallizing alloys and other thermally induced phase changes and 4 Phase conjugate mirrors

Subject Categories:

  • Coatings, Colorants and Finishes
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE