Few cycle pulse laser induced damage studies of gallium oxide and gallium nitride (Conference Presentation)

Brandon Harris

doi:10.1117/12.2538819

26 November 2019 Few cycle pulse laser induced damage studies of gallium oxide and gallium nitride (Conference Presentation)

Brandon Harris

Author Affiliations +

Proceedings Volume 11173, Laser-induced Damage in Optical Materials 2019; 111730F (2019) https://doi.org/10.1117/12.2538819
Event: SPIE Laser Damage, 2019, Broomfield (Boulder area), Colorado, United States

Abstract

The laser damage thresholds for gallium nitride and gallium oxide were found after exposing each sample to a femtosecond laser pulse. Threshold fluences were determined for both single pulse and multi pulse exposures. To accurately characterize the excited carrier density criteria in which visible laser damage occurs, we simulated carrier excitation dynamics for the entire laser pulse as it interacts with the target using the Keldysh model. From this a dynamic model of the conduction band carrier concentration was determined. For the measured single shot threshold fluences, the plasma critical density criteria for damage was met.

Conference Presentation

Citation Download Citation

Brandon Harris "Few cycle pulse laser induced damage studies of gallium oxide and gallium nitride (Conference Presentation)", Proc. SPIE 11173, Laser-induced Damage in Optical Materials 2019, 111730F (26 November 2019); https://doi.org/10.1117/12.2538819

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available