Atomic coherence effects within the sodium D<sub>1</sub> manifold. III. Lasing without inversion via population trapping
G G Padmabandu; Xingfu Li; Chang Su; E S Fry; D E Nikonov; Shi-Yao Zhu; G M Meyer; M O Scully; G G Padmabandu; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; Xingfu Li; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; Chang Su; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; E S Fry; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; D E Nikonov; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; Shi-Yao Zhu; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; G M Meyer; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA; M O Scully; Texas Laser Lab., Houston Adv. Res. Centre, Woodlands, TX, USA
Журнал:
Quantum Optics: Journal of the European Optical Society Part B
Дата:
1994-08-01
Аннотация:
Transient lasing without inversion has been experimentally demonstrated in sodium vapour. The principle of this atomic coherence effect can be well understood from the theory of a simple four-level system. The experimental results match with numerical simulations which take the complete hyperfine structure of the sodium D<sub>1</sub> line into account. The differences between our system and a Raman laser are discussed.
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