All-solid-state stimulated Raman scattering-based source of pulsed radiation tunable in 345-625 and 690-1250 nm ranges for spectroscopic applications

Measurements of Raman gain coefficient for barium tungstate crystal

“…Filters with low absorption were chosen and were placed as close to the mirror (8) as possible to minimize the thermal lens formation and its effect on the pump profile in the Raman amplifier. Some parts of the pump and Stokes input beams were directed by the mirrors ( 10), (11) to the energy meters ( 12), (13) for their energy control. To provide the same polarization to the pump and input Stokes beams we used the Glan prism (14).…”

“…So far, the Raman gain coefficient [10]). The successful utilization of a barium nitrate Raman shifter in these lasers was demonstrated in [11]. Barium tungstate Raman converters can also be used in such lasers.…”

MHz-rate picosecond laser discretely tunable from the near-infrared to the deep ultraviolet

“…As a result, most of the laser systems, based on stimulated Raman scattering frequency conversion, are relatively high-energy systems, operating at sub-mJ or higher energy level [7][8][9][10]. One possible solution is to utilize the intracavity stimulated Raman scattering, as it was done in the case of nanosecond lasers [11][12][13]; however, realizing stable operation of picosecond laser in this regime is rather challenging, and the repetition rate of such lasers is typically of the order of kHz, while for the optimal spectroscopic operation, higher repetition rate is desirable.…”