Emissions in potassium vapour under 4S{sub 1/2}-7S{sub 1/2} two-photon nsec excitation

Journal Article · Wed Nov 10 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3521352· OSTI ID:21428719

Pentaris, D; Chatzikyriakos, G; Armyras, A; Efthimiopoulos, T ^[1]

---

1. Laser, Non linear and Quantum Optics Laboratory, Physics Department University of Patras, Patras, Greece 26500 (Greece)

The two-photon excitation of 4S{sub 1/2}-7S{sub 1/2} transition of potassium atoms is studied. Several coherent emissions and processes are possible, such as parametric four-wave (PFWM), parametric six-wave (PSWM) mixing and competition with the stimulated hyper Raman (SHRS) and the amplified spontaneous emission (ASE). The radiations at the transitions 6P{sub 3/2,1/2}-4S{sub 1/2}, 6S{sub 1/2}-4P{sub 3/2,1/2} and 5P{sub 3/2,1/2}-4S{sub 1/2} are emitted only in the forward direction (indicating a parametric process), while the radiation at the transition 4P{sub 3/2,1/2}-4S{sub 1/2} is emitted in the forward and in the backward direction, indicating an ASE process.

• OSTI ID: 21428719
• Journal Information: AIP Conference Proceedings, Vol. 1288, Issue 1; Conference: International Commission for Optics topical meeting on emerging trends and novel materials in photonics, Delphi (Greece), 7-9 Oct 2010; Other Information: DOI: 10.1063/1.3521352; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
EXCITATION
EXCITED STATES
P STATES
PHOTON EMISSION
POTASSIUM
RAMAN EFFECT
S STATES
VAPORS
VISIBLE RADIATION
ALKALI METALS
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
METALS
RADIATIONS