Inscriere cercetatori

Asociatia Ad Astra a cercetatorilor romani lanseaza BAZA DE DATE A CERCETATORILOR ROMANI DIN DIASPORA. Scopul acestei baze de date este aceea de a stimula colaborarea dintre cercetatorii romani de peste hotare dar si cu cercetatorii din Romania. Cercetatorii care doresc sa fie nominalizati in aceasta baza de date sunt rugati sa trimita un email la cristian.presura@gmail.com

The influence of pump wavelength on Er:YAG green-emitting laser characteristics

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: O. Toma, S. Georgescu

Editorial: IEEE Journal of Quantum Electronics, 42, p.192-197, 2006.

Rezumat:

Mathematical modeling is used to study the influence of pump wavelength on the emission of an Er(0.5 at.%):YAG laser on the transition 4S3/2 – 4I15/2 (561 nm). Three pump wavelengths (direct pumping: 488 nm, upconversion pumping: 800 and 810 nm) are investigated and the corresponding laser emission regimes are discussed. For upconversion pumping, we find an optimum pump wavelength and optimum resonator losses for lowering of the continuous-wave emission threshold.

Cuvinte cheie: Laseri in unda continua, Excitarea laserilor, Laseri, Laseri pulsati, Laseri cu solid // Continuous-wave lasers, Laser excitation, Lasers, Pulsed lasers, Solid lasers