Ultra-High Laser Damage Threshold Broad Bandwidth Anti-Reflection Treatments
ID: AF233-D005Type: BOTH
Overview

Topic

Ultra-High Laser Damage Threshold Broad Bandwidth Anti-Reflection Treatments

Agency

Department of DefenseN/A

Program

Type: SBIRPhase: BOTHYear: 2023

Topic Link

https://www.sbir.gov/node/2447973

Additional Information

https://www.defensesbirsttr.mil/
Timeline
  1. 1
    Release Aug 23, 2023 12:00 AM
  2. 2
    Open Sep 20, 2023 12:00 AM
  3. 3
    Next Submission Due Oct 18, 2023 12:00 AM
  4. 4
    Close Oct 18, 2023 12:00 AM
Description

The Department of Defense (DoD) is seeking proposals for the development of ultra-high laser damage threshold broad bandwidth anti-reflection treatments. The objective is to develop and demonstrate an anti-reflection treatment for tungstate laser materials with a surface optical damage threshold exceeding 50 Joules per square cm in 10 nanosecond pulses over three separate wavebands (500-700 nm, 1000-1500 nm, 2000-5000 nm). The goal is to address the limitations of conventional multi-layer dielectric coatings, which are prone to surface damage and failure during temperature cycling. The preferred approach is to develop anti-reflection treatments based on surface texturing, which can achieve surface optical damage thresholds approaching those of the internal bulk material. The Phase II of the project involves the development of surface anti-reflection treatments specifically for tungstate-based third-order nonlinear optical media, such as potassium gadolinium tungstate (KGW). The goal is to demonstrate surface optical damage thresholds exceeding 50 Joules per square cm for laser pulse widths in the nanosecond regime. The project duration is not specified, but the proposal submission deadline is October 18, 2023. For more information, visit the solicitation link.

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