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6CCVD Research

Diamond Raman Lasers Push the Limits of Tunability and Coherence

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2025-08-26
AuthorsE. Granados, Zhenxu Bai

Abstract

Section titled ā€œAbstractā€

Tunable single-frequency lasers are essential for high-resolution spectroscopy and quantum technologies, yet achieving narrow-linewidth performance in compact, scalable systems across the UV-visible spectrum remains a key challenge. Recent work has revealed that Raman scattering in diamond can act as a natural spectral squeezer, where phonon dynamics help suppress frequency noise and concentrates optical power into a single, narrow spectral mode. Experiments at CERN and elsewhere have demonstrated linewidth compression by orders of magnitude, frequency-noise suppression exceeding 10Ā³-10ā“, and pathways toward Schawlow-Townes-limited performance in CW regimes. These results establish Raman phonon damping as a universal mechanism for generating ultra-coherent, widely tunable lasers, opening new opportunities in quantum metrology, optical clocks, and high-resolution spectroscopy.

Tech Support

Section titled ā€œTech Supportā€

Original Source

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