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Connect with GAMDAN Optics at SPIE D+CS this week!
ㆍ작성자: 전재필	ㆍ작성일: 2025-04-14 (월) 08:15	ㆍ조회: 694

GAMDAN OPTICS at D+CS

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ATTEND ONE OF OUR PRESENTATIONS

16 April 2025 • 1:20 PM - 1:40 PM EDT | Tallahassee 2, Ballroom Level

We will present studies of laser induced damage thresholds (LIDT) for silica glass windows with random antireflective surface structures (ARSS), including testing with both ns and fs pulsed lasers. We have demonstrated 5X higher LIDT for windows with ARSS as compared to those with traditional AR coatings, showing the advantages of ARSS for high power applications.

Presenter, Thomas C. Hutchens

The Univ. of North Carolina at Charlotte (United States)

16 April 2025 • 1:40 PM - 2:00 PM EDT | Tallahassee 2, Ballroom Level

Large-aperture laser materials such as crystalline gain media or nonlinear optical crystals are essential for the success of many high energy lasers, but attractive crystals, such as LBO, are often not available in large enough sizes. An optically seamless and inherently scalable process for aperture enlargement is reported here. The enlargement is done using diffusion bonding of LBO crystals. A bonded crystal is shown to deliver beam quality and second harmonic conversion efficiency that is equivalent to that of a monolithic crystal of similar dimensions. This presentation reports the scaling of this bonding technique to create larger apertures.

Presenter, Hanna Cai

GAMDAN Optics (United States)

Advancements in anti-reflection structured surfaces (ARSS) on LBO crystals for high energy lasers

16 April 2025 • 2:00 PM - 2:20 PM EDT | Tallahassee 2, Ballroom Level

High quality crystals, with very high laser induced damage threshold (LIDT), are required for current and future lasers applications such as directed energy weapons. Lithium Triborate (LBO) has superior second- and third-harmonic generation properties compared to other non-linear optical crystals. Anti-reflection structured surfaces (ARSS) have shown higher LIDT than coatings, and would not suffer from thermal expansion issues. High-aspect-ratio ARSS fabrication with optical, physical, and chemical characterization were performed. The end goal is a scalable, robust, and high optical performance ARSS treatment for LBO, to enable next generation high energy laser (HEL) systems.

Presenter, Thomas C. Hutchens

The Univ. of North Carolina at Charlotte (United States)

We look forward to seeing you at SPIE Defense + Commercial Sensing!

Reach out to us anytime @ sales@gamdan.com. We will be checking our communications regularly all throughout the week while at the exhibit.