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- Cross-polarized_wave_generation abstract "Cross polarized wave (XPW) generation is a nonlinear optical process that can be classified in the group of frequency degenerate [four wave mixing] processes. It can take place only in media with anisotropy of third order nonlinearity. As a result of such nonlinear optical interaction at the output of the nonlinear crystal it is generated a new linearly polarized wave at the same frequency, but with polarization oriented perpendicularly to the polarization of input wave. Simplified optical scheme for XPW generation is shown on Fig. 1. It consists of a nonlinear crystal plate (thick 1-2 mm) sandwiched between two crossed polarizers. The intensity of generated XPW has cubic dependence with respect to the intensity of the input wave. In fact this is the main reason this effect is so successful for improvement of the contrast of the temporal and spatial profiles of femtosecond pulses. Since cubic crystals are used as nonlinear media they are isotropic with respect to linear properties (there is no birefringence) and because of that the phase and group velocities of both waves XPW and the fundamental wave(FW) are equal:VXPW=VFW and Vgr,XPW=Vgr,FW. Consequence of that is ideal phase and group velocity matching for the two waves propagating along the crystal. This property allows obtaining very good efficiency of the XPW generation process with minimum distortions of the pulse shape and the spectrum.".
- Cross-polarized_wave_generation thumbnail Fig1wikiXPW.png?width=300.
- Cross-polarized_wave_generation wikiPageID "19624503".
- Cross-polarized_wave_generation wikiPageRevisionID "545458399".
- Cross-polarized_wave_generation hasPhotoCollection Cross-polarized_wave_generation.
- Cross-polarized_wave_generation subject Category:Nonlinear_optics.
- Cross-polarized_wave_generation type BodyPart105220461.
- Cross-polarized_wave_generation type Eye105311054.
- Cross-polarized_wave_generation type NonlinearOptics.
- Cross-polarized_wave_generation type Organ105297523.
- Cross-polarized_wave_generation type Part109385911.
- Cross-polarized_wave_generation type PhysicalEntity100001930.
- Cross-polarized_wave_generation type SenseOrgan105299178.
- Cross-polarized_wave_generation type Thing100002452.
- Cross-polarized_wave_generation comment "Cross polarized wave (XPW) generation is a nonlinear optical process that can be classified in the group of frequency degenerate [four wave mixing] processes. It can take place only in media with anisotropy of third order nonlinearity. As a result of such nonlinear optical interaction at the output of the nonlinear crystal it is generated a new linearly polarized wave at the same frequency, but with polarization oriented perpendicularly to the polarization of input wave.".
- Cross-polarized_wave_generation label "Cross-polarized wave generation".
- Cross-polarized_wave_generation sameAs m.04n42l3.
- Cross-polarized_wave_generation sameAs Q5188192.
- Cross-polarized_wave_generation sameAs Q5188192.
- Cross-polarized_wave_generation sameAs Cross-polarized_wave_generation.
- Cross-polarized_wave_generation wasDerivedFrom Cross-polarized_wave_generation?oldid=545458399.
- Cross-polarized_wave_generation depiction Fig1wikiXPW.png.
- Cross-polarized_wave_generation isPrimaryTopicOf Cross-polarized_wave_generation.
