High-sensitivity near-field laser microscopy
| Autor: | S. P. Merkulova, Anton A. Kolesnikov, Yurii E. Lozovik |
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| Rok vydání: | 2010 |
| Předmět: |
Distributed feedback laser
Optical fiber Materials science business.industry Physics::Optics Polarization-maintaining optical fiber Graded-index fiber Atomic and Molecular Physics and Optics law.invention Optics Fiber Bragg grating law Fiber laser Optoelectronics Dispersion-shifted fiber Laser power scaling business Engineering (miscellaneous) |
| Zdroj: | Journal of Russian Laser Research. 31:469-474 |
| ISSN: | 1573-8760 1071-2836 |
| DOI: | 10.1007/s10946-010-9168-9 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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