Abstract
We propose a new method of laser spectroscopy, which combines high subwavelength space resolution, high sensitivity, and spectral resolution. The method is based on using a fiber laser near the generation threshold instead of a fiber optical near-field microscope. The near-field subwavelength aperture in the “active” fiber is employed for probing. Absorption on the objects under consideration (atoms, molecules, nanostructure, etc.) leads to the failure of oscillations in the fiber laser. We make a computer simulation of the system under consideration and analyze the method’s sensitivity.
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Kolesnikov, A.A., Lozovik, Y.E. & Merkulova, S.P. High-sensitivity near-field laser microscopy. J Russ Laser Res 31, 469–474 (2010). https://doi.org/10.1007/s10946-010-9168-9
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DOI: https://doi.org/10.1007/s10946-010-9168-9