Random quasi-phase-matching in polycrystalline media and its effects on pulse coherence properties
Abstract
Polycrystalline materials can mediate efficient frequency up-conversion for mid-infrared light. Motivated by the need to understand the properties of the harmonic and supercontinuum radiation from such media, we utilize realistic numerical simulations to reveal its complex temporal and spatial structure. We show that the generated radiation propagates in the form of long-duration pulse trains that can be difficult to compress and that optical filamentation in high-energy pulses gives rise to fine-structured beam profiles. We identify trends concerning pulse energy, sample length, and the microstructure of the material that can inform optimization for different applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 24, 2021
- Source ID
- 10.1364/oe.418198
Entities
People
- Aaron Schweinsberg
- Anthony Valenzuela
- Christopher Wolfe
- Enam Chowdhury
- Jiahui Gu
- Laura Vanderhoef
- Michael Tripepi
- Miroslav Kolesik
- Trenton R Ensley
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Office of Naval Research
- Ohio State University
- United States Army Research Laboratory
- University of Arizona