Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Yu N Yashkir"'
Autor:
Yu N Yashkir, O V Yashkir
Publikováno v:
Soviet Journal of Quantum Electronics. 21:1244-1246
An investigation is made of the generation of ultrashort pulses in a ring laser in the presence of intracavity nonlinear losses due to stimulated Raman scattering. A numerical analysis of the attractors of the problem is used in a study of typical la
Autor:
A I Chaus, Yu N Yashkir
Publikováno v:
Soviet Journal of Quantum Electronics. 20:847-848
Some features of CARS spectroscopy in waveguide structures are investigated theoretically taking into account stimulated Raman amplification of a weak pump wave in the field of a strong wave and allowing for the phase matching. A four-photon intermod
Publikováno v:
physica status solidi (b). 69:673-678
The influence of the relative group velocity finiteness of the scattering polariton on the polariton Raman scattering (RS) intensities is discussed. It is proved that this effect is not very essential only in the region of polariton frequencies ωp n
Autor:
V. L. Strizhevskii, Yu. N. Yashkir
Publikováno v:
physica status solidi (b). 61:353-364
The theory of the gain factor of the stimulated Raman scattering by polaritons in biaxial crystals is carried out in the fixed stationary pump field approximation. By sufficient length of the polariton wave vector the polariton scattering turns into
Autor:
Yu N Yashkir
Publikováno v:
Soviet Journal of Quantum Electronics. 14:1405-1409
Fluctuation-dissipation theory is developed for parametric noise in a four-photon frequency upcon verter of infrared signals. General analytic formulas are obtained for the parametric converter efficiency, as well as for the signal/noise ratio and th
Autor:
V. L. Strizhevskii, Yu N Yashkir
Publikováno v:
Soviet Journal of Quantum Electronics. 5:541-547
A theory is presented of the active speetroscopy using steady-state spontaneous Raman scattering by polaritons, i.e., spontaneous Raman scattering of a "test" wave ωπ by polaritons generated in an independent process of polariton stimulated Raman s
Autor:
Yu A Galaĭchuk, Yu N Yashkir
Publikováno v:
Soviet Journal of Quantum Electronics. 19:1647-1650
A theory is developed for the calculation of the gain g due to stimulated resonant hyper-Raman scattering of light by polaritons in gaseous media. It is shown that throughout the tuning range of the pump frequency (including one- and two-photon reson
Publikováno v:
physica status solidi (b). 123:691-701
A theory of the coherent anti-Stokes Raman spectroscopy (CARS) of surface polaritons (SP) is developed. General expressions for the intensities of ultrashort SP pulses excited by the biharmonic pump pulses and expressions for the CARS signal intensit
Publikováno v:
Soviet Journal of Quantum Electronics. 14:1532-1535
A fluctuation theory is developed for the parametric conversion of infrared radiation utilizing four-photon difference frequency generation processes. An analysis is made of some features of optical parametric oscillation in this system allowing for
Publikováno v:
Physica Status Solidi (b). 89:27-36
A general theory of the surface polariton states in anisotropic crystals at arbitrary orientation of crystal axes with respect to the surface is developed. General formulae describing dispersive curves and polarization of surface polaritons (SP) are