BerkSEL: A scale-invariant laser beyond the Schawlow-Townes two-mirror strategy.
basic_science · Level V
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- Record sourced from PubMed, PMID 38448453.
- Also identified by DOI 10.1038/s41467-024-46338-0 and PMC identifier 10917810.
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Abstract
I argue that a surface emitting laser that remains single mode irrespective of its size, a scale-invariant laser, should of necessity also waste light at the edge. This is a fundamental departure from the Schawlow-Townes two-mirror strategy that keeps light away from mirrors and edges to preserve gain and minimize loss. The strategy was implemented in the recent discovery of the Berkeley Surface Emitting Laser (BerkSEL).