Compact solid-state laser source for 1S-2S spectroscopy in atomic hydrogen

Details Compact solid-state laser source for 1S-2S spectroscopy in atomic hydrogen Compact solid-state laser source for 1S-2S spectroscopy in atomic hydrogen

2005-11-18

arxiv.org/abs/physics/0511162v1

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.73.021801

We demonstrate a novel compact solid-state laser source for high-resolution two-photon spectroscopy of the $1S-2S$ transition in atomic hydrogen. The source emits up to 20 mW at 243 nm and consists of a 972 nm diode laser, a tapered amplifier, and two doubling stages. The diode laser is actively stabilized to a high-finesse cavity. We compare the new source to the stable 486 nm dye laser used in previous experiments and record 1S-2S spectra using both systems. With the solid-state laser system we demonstrate a resolution of the hydrogen spectrometer of 6 \times 10^{11} which is promising for a number of high-precision measurements in hydrogen-like systems.

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