Sub-Doppler spectroscopy with an external cavity quantum cascade laser

The linewidth of an external cavity quantum cascade laser is studied as a function of injection current and laser scan rate. The laser linewidth is inferred to be ca. 2.5 MHz from Lamb-dip spectra on a low pressure sample of NO and its variation with injection current is well modeled using literatur...

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Bibliographic Details
Main Authors: Walker, R, Kirkbride, J, van Helden, J, Weidmann, D, Ritchie, G
Format: Journal article
Published: 2013