Frequency reference for atomic transitions of Rb D2-line based on the effect of selective reflection


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Аннотация

On an example of the D2-line of the Rb atoms the work of the frequency reference of atomic transitions is demonstrated, based on the application of the spectrum of a selective reflectance (SR) from the boundary of atom vapors with the use of nano-cell (NC) with the thickness L ~ λ/2, where λ is the laser wavelength equal to 780 nm. When changing the thickness of the nano-cell near the thickness L ~ λ/2, we observe the inversion of sign of the SR slope profile which is positive when L < λ/2 and negative when L > λ/2. In the case when the incidence angle of the laser beam on the surface of the nano-cell is close to the normal, in real-time it is possible to form the derivative of the SR which represents a resonance peak with ~35 MHz spectral linewidth and located at the atomic transition. The phenomenon of oscillation of the sign of slope while changing the nano-cell thickness from L ~ λ/2 up to L ~ 3/2λ is demonstrated. The practical application of the SR is noted.

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Авторлар туралы

A. Sargsyan

Institute for Physical Research

Хат алмасуға жауапты Автор.
Email: sarmeno@mail.ru
Армения, Ashtarak

G. Hakhumyan

Institute for Physical Research

Email: sarmeno@mail.ru
Армения, Ashtarak

A. Sarkisyan

Institute for Physical Research

Email: sarmeno@mail.ru
Армения, Ashtarak

A. Amiryan

Institute for Physical Research; Laboratoire Interdisciplinaire Carnot de Bourgogne

Email: sarmeno@mail.ru
Армения, Ashtarak; Dijon

D. Sarkisyan

Institute for Physical Research

Email: sarmeno@mail.ru
Армения, Ashtarak

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