Parametric oscillation threshold for a pulsed pump
Novel configurations for pulsed optical parametric oscillators and their pump sources
... such pump radiation is derived from arc lamps, filled with either kiypton or xenon gas, and located close to the gain ...a pump chamber, normally incorporating reflective elements to help direct the ...
291
Parametric oscillation in a vertical microcavity: a polariton condensate or micro-optical parametric oscillation
... under pulsed excitation conditions, we calculate the threshold incident pump power for the doubly resonant signal and idler m OPO, I th ; 35 mW, in reasonable agreement with our ...the pump ...
5
Optical Parametric Oscillation in Hg1-xCdxGa2S4
... at pump intensity I po =9 MW/cm 2 (curves 1-2), 10 MW/cm 2 (curve 3) and s / p ...of parametric conversion in the considered crystals of middle IR range may be increased and the condition for increasing ...
7
Threshold of parametric instability in the ionospheric heating experiments
... The threshold of PDI using ...the threshold field of pump waves for the excitation of parametric instability have been ...the threshold field of the excited parametric ...
19
Experimental study on characteristics of self-excited oscillation pulsed water jet
... the pump pressure increases from 5 MPa to 25 MPa, and is particularly strong between 15 MPa and 20 ...the oscillation acceleration will be ...by pulsed water jet cavitation characteristics shows a ...
13
Relaxed damage threshold intensity conditions and nonlinear increase in the conversion efficiency of an optical parametric oscillator using a bi-directional pump geometry
... bi-directional pump geometry for a singly resonant synchronously pumped ultra-short pulsed ...„forward‟ pump pulse and a second counter-propagating pulse in the „reverse‟ direction together with the ...
8
Investigation into all solid state, pulsed vibronic lasers and their pump sources
... Tiisapphire crystal. Output coupling was obtained through one of the plane mirrors which was specified over the range 780-870nm. Three output couplers were available, namely T=2%, 3% and 5%. When the laser was not ...
174
Control of Threshold and Gain of Parametric Amplification in Magnetoactive III V Piezoelectric Semiconductors
... of parametric amplification of backward Stokes signal has been studied, using hydrodynamic model of semiconductors, in the far infrared ...of threshold intensity for onset of the parametric ...
9
Cross-polarized photon-pair generation and bi-chromatically pumped optical parametric oscillation on a chip
... optical parametric oscillator. Operating the device above and below threshold, we directly generate orthogonally polarized beams, as well as photon pairs, respectively, that can find applications, for ...
7
Two-colour quantum entanglement in a singly resonant optical parametric oscillator approaching threshold
... below threshold and that the maximum noise reduction below the standard quantum limit is the same at the signal and idler frequencies in a similar way to the doubly-resonant ...the threshold of ...
6
Anomalous phenomena in ECRH experiments at toroidal devices and low-threshold parametric decay instabilities
... PDI threshold is increasing P 0 th w ...minimal threshold value is more than order of magnitude smaller than that calculated for the induced backscattering absolute PDI [13] for the same TCV ...the ...
9
Anomalous absorption in ECRH experiments due to the parametric low-threshold excitation of localized UH waves
... the pump O-mode wave anomalous absorption due to the parametric excitation of trapped UH ...power threshold ( P 0 th = 125 kW ) can be exceeded by the MW microwave beams utilized usually for ...
8
Build up of off diagonal long range order in microcavity exciton polaritons across the parametric threshold
... driving pump area by a known factor and we adjust the laser pump in order to achieve that the condensate areas scale by the required ...power threshold, and taking into account the changes in the ...
9
Infrared optical parametric fluorescence and parametric oscillation
... This chapter is devoted to deriving the differential equations which describe the changes in an optical field due to a nonlinear polarization. Previous derivations [r] ...
157
Threshold Switching and Self-Oscillation in Niobium Oxide
... the threshold switching behaviour and anatomy of Pt/NbO x /TiN device ...self-assembled threshold-memory switching after a forming process and a subsequent SET/RESET ...stable threshold switching was ...
168
The Theory and Experimental Study of the Self Excited Oscillation Pulsed Jet Nozzle (Pipeline Pulsed Flow Generator)
... A lot of tests in 16 oil fields of China, such as South and North of Xingjiang, Sengli, Daqing, Zhongyuan, Chuandong oil fields etc., have been shown that the os- cillating pressure in the well bottom is very large, and ...
9
Threshold switching and electrical self-oscillation in niobium oxide films
... self- oscillation, 19,20 Lalevic and Shoga first reported stable and reproducible oscillations with frequency up to 600 kHz in single crystal NbO 2 and polycrystalline NbO x films in ...periodic ...
11
A non-parametric framework for estimating threshold limit values
... true threshold, the point estimate may be ...the threshold may have lower risk due to sampling error, misclassification or different indi- vidual response, and subsequently PAVA will pool them all together ...
9
Fractal Parametric Oscillator as a Model of a Nonlinear Oscillation System in Natural Mediums
... The paper presents a model of fractal parametric oscillator. Showing that the solution of such a model exists and is unique. A study of the solution with the aid of diagrams Stratton-Ince. The regions of ...
5
Hf pump induced parametric instabilities in the auroral E region
... the pump field strength to compare with instability ...the pump power, and can be estimated from the ionogram ...10-s-off pump duty cycle, however, undoubtedly produced small scale plasma density ...
6