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Direct observation of backward degenerate mirrorless lasing in rubidium vapor

A. Papoyan, Svetlana Shmavonyan, Aleksandr Khanbekyan +1 more

Jan 1, 20250 citations

Mirrorless lasing and cooperative scattering with cold atoms

William Guerin

Jun 18, 20201 citation

Modeling polarization reversal in optically pumped rubidium vapors

Joan Dreiling, Eric B. Norrgard

Bulletin of the American Physical SocietyMay 28, 20100 citations

Continuous-wave mirrorless lasing in optically pumped atomic Cs and Rb vapors

Animesh Sharma, Natarajan D. Bhaskar, Yukai Lu +1 more

Continuous-wave lasing in optically pumped atomic cesium and rubidium vapor is observed without the use of any feedback mirrors. The stimulated emission in a number of infrared wavelengths is restricted to a very narrow angle in both the forward and backward directions.

Applied Physics LettersAug 1, 198158 citations

Nonlinear Absorption of Ruby Laser Emission by Molecular Rubidium Vapor

N. N. Kostin, Miloslava Sokolová, V. A. Khodovoǐ +1 more

Journal of Experimental and Theoretical PhysicsJan 1, 19720 citations

Continuous-wave mirrorless lasing at 221 μm in sodium vapors

A. M. Akulshin, Felipe Pedreros Bustos, Dmitry Budker

We demonstrate backward-directed continuous-wave (cw) emission at 2.21 {\mu}m generated on the 4P3/2-4S1/2 population-inverted transition in Na vapors two-photon excited with resonant laser light at 589 and 569 nm. Our study of power and atom-number-density threshold characteristics shows that lasing occurs at sub-10 mW total power of the applied laser light. The observed 6 mrad divergence is defined mainly by the aspect ratio of the gain region. We find that mirrorless lasing at 2.21 {\mu}m is magnetic field and polarization dependent that may be useful for remote magnetometry. The presented results could help determine the requirements for obtaining directional return from sodium atoms in the mesosphereWe demonstrate backward-directed continuous-wave (cw) emission at 2.21 {\mu}m generated on the 4P3/2-4S1/2 population-inverted transition in Na vapors two-photon excited with resonant laser light at 589 and 569 nm. Our study of power and atom-number-density threshold characteristics shows that lasing occurs at sub-10 mW total power of the applied laser light. The observed 6 mrad divergence is defined mainly by the aspect ratio of the gain region. We find that mirrorless lasing at 2.21 {\mu}m is magnetic field and polarization dependent that may be useful for remote magnetometry. The presented results could help determine the requirements for obtaining directional return from sodium atoms in the mesosphere

Jan 1, 201820 citations

Direct observation of backward degenerate mirrorless lasing in rubidium vapor

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