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Frequency evaluation of collimated blue light generated by wave mixing in Rb vapour
Alexander Akulshin, Christopher Perrella, Gar-Wing Truong +2
An evaluation of the absolute frequency and tunability of collimated blue light (CBL) generated in warm Rb vapour excited by low-power cw laser radiation at 780 nm and 776 nm, has…
Saturation Spectroscopy of Iodine in Hollow-core Optical Fibre
Anna Lurie, Philip S. Light, James Anstie +4
We present high-resolution spectroscopy of Iodine vapour that is loaded and trapped within the core of a hollow-core photonic crystal fibre (HC-PCF). We compare the observed spectr…
Spectral Lineshape Measurements with Shot-Noise Limited Accuracy
Gar-Wing Truong, James D. Anstie, Eric F. May +2
Spectroscopy has played the key role in revealing, and thereby understanding, the structure of atoms and molecules. A central drive in this field is the pursuit of higher precision…
Power Dependent Lineshape Corrections for Quantitative Spectroscopy
Thomas M. Stace, Gar-Wing Truong, James Anstie +2
The Voigt profile - a convolution of a Gaussian and a Lorentzian - accurately describes the absorption lines of atomic and molecular gases at low probe powers. Fitting such to expe…
Laser frequency comb techniques for precise astronomical spectroscopy
Michael T. Murphy, Clayton R. Locke, Philip S. Light +2
Precise astronomical spectroscopic analyses routinely assume that individual pixels in charge-coupled devices (CCDs) have uniform sensitivity to photons. Intra-pixel sensitivity (I…