Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Zdravka I. Aneva"'
Autor:
Zdravka I. Aneva, Elena P. Vidolova-Angelova, Zahary Y. Peshev, A. D. Deleva, Boiko K. Kaprielov, Dimitar Angelov
Publikováno v:
Journal of Modern Optics. 47:793-803
An experimental investigation of a pulsed tunable injection-seeding system pumped by a Nd:YAG laser is presented. The slave laser (SL) of the system is a gain-switched Ti:Sapphire laser with a dual-channel competitive cavity which consists of a main
Publikováno v:
Applied Physics Letters. 69:2000-2002
A new concept, defined as spectral‐gate injection seeding, is proposed for coupling the master oscillator (MO) and the forced oscillator (FO) in tunable injection‐seeding laser systems. It is based on the use of a spectral selector as a tunable n
Autor:
Atanaska D. Deleva, Elena P. Vidolova-Angelova, Dimitar A. Angelov, Zdravka I. Aneva, Zahari Y. Peshev
Publikováno v:
SPIE Proceedings.
Light-induced absorption in pure B12TiO20 crystal and crystals doped with Nd, Mo, W, and V was investigated using the pump-probe method. Q-switched frequency-doubled (532 nm) YAG:Nd laser with pulse duration approximately 20 ns was applied for sample
Publikováno v:
SPIE Proceedings.
Photoinduced changes in the structure of amorphous chalcogenide films reflect in their optical transmission as photodarkening (PD) or photobleaching (PB). As a rule As- chalcogenides photodarken while Ge-chalcogenides photobleach when illuminated by
Autor:
Atanaska D. Deleva, Zdravka I. Aneva, Boiko K. Kaprielov, Zahari Y. Peshev, Elena P. Vidolova-Angelova, Dimitar A. Angelov
Publikováno v:
SPIE Proceedings.
A comparative experimental study of two versions of an injection-seeding laser system containing a slave laser (SL) with a ring-linear dual-channel competitive cavity and with a simple ring one is presented. The spectral purity of the SL output radia
Autor:
Elena P. Vidolova-Angelova, Zahari Y. Peshev, Zdravka I. Aneva, Atanaska D. Deleva, Dimitar A. Angelov
Publikováno v:
SPIE Proceedings.
A laser cavity containing highly selective reflector based on a multipass grazing-incidence diffraction grating is described. The operation of the multipass selective reflector (MPSR) is demonstrated and studied experimentally in the case of pulsed d
Autor:
Zahari Y. Peshev, Zdravka I. Aneva, Vasilka Tsaneva, A. Dikovska, Peter A. Atanasov, Rumen I. Tomov
Publikováno v:
SPIE Proceedings.
This work summarized the results of XeCl excimer laser ablation deposition procedure of Ti-doped sapphire thin films. Three types of targets are utilized-monocrystalline and two different ceramics synthesized in vacuum and H2 ambient. The influence o
Autor:
Elena P. Vidolova-Angelova, Zahari Y. Peshev, Atanaska D. Deleva, Zdravka I. Aneva, Dimitar A. Angelov
Publikováno v:
SPIE Proceedings.
An injection seeding of narrowband and broadband radiation into a highly selective tunable laser is described. An increase of the laser output energy by a factor of 1,5 is achieved. Laser oscillations are induced by injection seeding when the active
Publikováno v:
Holographics International '92.
To extend the sensitivity of photorefractive BSO crystals into the red and near-infrared part of the spectrum, they are doped with transition metals (Fe, Ni, Cr, Mn). These crystals are investigated in terms of their absorption spectra, optical activ