We report on a new coherent source that, using a phase-lock scheme to an optical frequency-comb synthesizer, achieves a 10-Hz intrinsic linewidth, is tunable from 4 to 4.5 um with a presettable absolute frequency and, when coupled to a high-finesse cavity, can provide a short-term absorption sensitivity of 1.3 · 10-11 cm -1Hz-1/2. These unique spectral features make this source a precise tool for molecular physics.
Ultra-stable, widely tunable and absolutely linked mid-IR coherent source
Galli I;Bartalini S
;Cancio P;Giusfredi G;Mazzotti D;De Natale P
2009
Abstract
We report on a new coherent source that, using a phase-lock scheme to an optical frequency-comb synthesizer, achieves a 10-Hz intrinsic linewidth, is tunable from 4 to 4.5 um with a presettable absolute frequency and, when coupled to a high-finesse cavity, can provide a short-term absorption sensitivity of 1.3 · 10-11 cm -1Hz-1/2. These unique spectral features make this source a precise tool for molecular physics.File in questo prodotto:
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Descrizione: Ultra-stable, widely tunable and absolutely linked mid-IR coherent source
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