Polychromatic and collimated lights generated by nondegenerate four-wave mixing in cesium vapor.
Opt Express
; 32(3): 3492-3500, 2024 Jan 29.
Article
de En
| MEDLINE
| ID: mdl-38297569
ABSTRACT
We demonstrate the generation of polychromatic and collimated lights at 456â
nm, 459â
nm, and 761â
nm based on cesium (133Cs) 6S1/2 - 6P3/2 - 8S1/2 - 7P3/2, 7P1/2, 6P1/2 - 6S1/2 multi-diamond-type atomic system via two-photon excitation with two IR pump lasers at 852â
nm and 795â
nm. The 456â
nm, 459â
nm (7P3/2, 7P1/2 â 6S1/2) collimated blue lights result from the self-seeded four-wave mixing process (FWM), and the 761â
nm coherent light (8S1/2 â 6P1/2) is from a seeded FWM process with the injection of a third laser at 895â
nm. We measure the dependency of generated polychromatic fields on the temperature of 133Cs vapor cell and the powers of input lasers, clearly demonstrating the competition between the self-seeded FWM and seeded FWM, as they share the same excitation path. This work is helpful to further produce entangled multi-color photons for quantum communication.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Opt Express
Sujet du journal:
OFTALMOLOGIA
Année:
2024
Type de document:
Article
Pays de publication:
États-Unis d'Amérique