Experimental nonlinear interference comb spectroscopy

S. A. Pulkin, E. N. Borisov, M. V. Balabas, S. V. Savelyeva, S. V. Uvarova, V. S. Shevtsov, A. A. Kalinichev, V. I. Shoev, D. V. Venediktov

Результат исследований: Научные публикации в периодических изданияхстатья

3 Цитирования (Scopus)


A means of nonlinear interferential comb spectroscopy with increased sensitivity is propsed. Radiation from the comb-generator of a femtosecond laser is focused at the center of a cell with vapors of rubidium atoms, mounted in an arm of a Michelson interferometer. This technique is an improvement of Rozhdestvenski hooks method, with digital registration by the detectors on a CCD array being substituted for the photographic registration of interferograms, resulting in increased interferometric sensitivity (holographic interferometry). A primary spectrogram is processed in digital form on a dual-beam interferometer equipped with a phase modulator to improve sensitivity with the possibility of an a posteriori increase in interferometric sensitivity. Dispersive signals appear in the interferogram spectrogram on two-photon absorption lines when the pumping radiation is focused at the center of a cell with Rb vapors. Nonlinear processes of coherent radiation due to nonlinear interference effects are studied. Numerical simulations are performed that confirm the proposed theoretical model.

Язык оригиналаанглийский
Страницы (с-по)1466-1467
Число страниц2
ЖурналBulletin of the Russian Academy of Sciences: Physics
Номер выпуска12
СостояниеОпубликовано - 1 дек 2017

Предметные области Scopus

  • Физика и астрономия (все)

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