Spectral invariance of Gaussian Schell-model beams
Abstract
It is well known that in general the spectrum of a beam that is generated by a partially coherent source will change on propagation. Here we derive necessary and sufficient conditions under which the often-used Gaussian Schell-model sources can produce beams whose normalized spectrum is invariant everywhere, or is invariant just along the beam axis. These sources are not necessarily quasi-homogeneous or obeying the scaling law.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 22, 2020
- Source ID
- 10.1364/oe.397889
Entities
People
- Hugo F. Schouten
- Taco D Visser
- Xiaofei Li
- Yangjian Cai
- Yaru Gao
Organizations
- Air Force Office of Scientific Research
- National Natural Science Foundation of China