Soviet physics. Technical physics

Change in lasing parameters near a crystal-matrix phase transition

N. V. Shchedrina

Published Jul 1, 1983• 0 citations

Abstract

Lasing processes involving local levels of impurity atoms and ions are considered and the properties of stimulated emissions near a crystal-matrix phase transition is considered. (AIP)

Related papers

Stimulated Raman emission of coherent phonons by impurities in a crystal

Benjamin Fain

The possibility of stimulated emission of coherent phonons by impurities (ions) embedded in a crystal is considered. It is shown that when the ions with homogeneously broadened levels are subjected to an electromagnetic field, the frequency Ω of which is larger than an eigenfrequency of the ion ω21, at the Raman frequency ωq=Ω−ω21, a coherent stimulated emission of phonons may emerge. The absorption rate of the pumping electromagnetic field has a singularity near the threshold of the phonon self-excitation.

Journal of Applied PhysicsSep 1, 19836 citations

Emission Spectra of Low-Z Atoms for Lasing Without Inversion in Helium-Like Atoms

James M. Mitrani, Hui Xia, S. Suckewer

Bulletin of the American Physical SocietyNov 16, 20110 citations

Lasing by superradiance of laser-cooled ions

Kazuhiro Hayasaka

The Japan Society of Applied PhysicsJul 17, 20150 citations

New laser transition in a Pr3+:RbPb2Cl5crystal in the 2.3—2.5-μm range

А. Г. Охримчук, Leonid N. Butvina, Evgenii M Dianov +3 more

Lasing at the 3 F 3 — 3 H 5 transition of the Pr 3+ ion in a nonhygroscopic Pr 3+ :RbPb 2 Cl 5 crystal is obtained for the first time at room temperature and the luminescent and lasing properties of the crystal are studied. The maximum differential cross section for stimulated emission in the 2.31—2.59-μm band of the 3 F 3 — 3 H 5 transition is found to be 1.7 × 10 -19 cm 2 and the lifetime of the 3 F 3 upper laser level is 0.11 ms.

Quantum ElectronicsJan 31, 200626 citations

Stimulated emission from an atom in a photonic crystal

Martin Konôpka

I analyze the stimulated emission process in photonic band structures. I consider a dipole transition of a two-level atom which is tuned near an edge of a photonic band gap. I solve numerically the Schr\"odinger equation for the chosen model without Born and Markovian approximations. It is shown that even one photon in the field can have significant influence on the dynamics of the system providing the atomic transition is tuned near sharp structures of the density of modes.

Physical Review ANov 1, 199919 citations

Pulse Laser Emission and Superradiance Due to Transitions from Resonance to Metastable Levels in Atoms and Ions

Nicolai G. Basov

Springer eBooksJan 1, 19760 citations