METROLOGY WITH AN OPTICAL FEEDBACK FREQUENCY STABILIZED CRDS

Kassi, Samir

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https://hdl.handle.net/2142/79411 Copy

Description

Title

METROLOGY WITH AN OPTICAL FEEDBACK FREQUENCY STABILIZED CRDS

Author(s)

Kassi, Samir

Contributor(s)

Burkart, Johannes

Issue Date

23-Jun-15

Keyword(s)

Mini-symposium: High-Precision Spectroscopy

Abstract

We will present a metrological application of our recently developed Optical Feedback Frequency Stabilized - Cavity Ring Down Spectrometer (OFFS-CRDS). This instrument, which ideally fits with an optical frequency comb for absolute frequency calibration, relies on the robust lock of a steady cavity ring down resonator against a highly stable, radiofrequency tuned optical source. At 1.6 $mu$m, over 7 nm, we demonstrate Lamb dip spectroscopy of CO$_2$ with line frequency retrieval at the kHz level, a dynamic in excess of 700,000 on the absorption scale and a detectivity of 4x10$^{-13}$cm$^{-1}$Hz$^{-1/2}$. Such an instrument nicely meets the requirements for the most demanding spectroscopy spanning from accurate isotopic ratio determination and very precise lineshape recordings to Boltzmann constant redefinition.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79411

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