750 mW continuous-wave solid-state deep ultraviolet laser source at the 2537 nm transition in mercury

Abstract

A high-power continuous-wave coherent light source at 253.7 nm is described. It is based on a solid-state Yb:YAG disk laser with two successive frequency doubling stages and is capable of generating stable output powers of up to 750 mW. Spectroscopy of the 6 (1)S(0)-6 (3)P(1) transition of mercury has been demonstrated.

Yb Fiber Amplifier at 972.5 nm with Frequency Quadrupling to 243.1 nm

“…Additional studies have shown that if degradation in CLBO occurs, it appears to be reversible [33]. This is in contrast to BBO, which shows irreversible damage caused by the formation of an absorption center [28,33,34]. Therefore, by utilizing CLBO we should be able to power scale our UV output as more fundamental power becomes available without crystal degradation.…”

Towards an Optical Lattice Clock Based on Neutral Mercury

“…This work will be pursued when the laser returns. Similar work has been done simultaneously, as reported in [24].…”

The Production and Study of Cold Antiprotons and Antihydrogen

“…The two photon spectroscopy techniques developed our collaborators at Gärching for hydrogen spectroscopy have revolutionized spectroscopy and laser frequency measurements. A continuous and coherent source of Lyman alpha radiation has also been developed just for these experiments [18,19,20,21]. Optics and techniques for this portion of the electromagnetic spectrum are of great interest because of possible utility for producingand probing smaller structures.…”