This effect was predicted from the symmetry and can occur only in noncollinearly magnetized media. It is shown that this effect has a resonance nature with a resonance at a pump frequency equal to the plasma frequency of conduction electrons. Estimates of the susceptibility at the double ...
Second harmonic generation (SHG), also called frequency doubling, is a nonlinear optical process, in which photons interacting with a nonlinear material are effectively ‘combined’ to form new photons having twice the frequency of initial photons. ...
Figure 4d shows multiple sideband oscillations that occur at a pump power of 930 μW. Particular signal-idler pairs oscillate as a function of pump laser detuning as expected from Eq. (5). Disorder in the mode spacing and quality factors causes certain mode pairs to oscillate before others...
The experimental findings on the second harmonic generation (SHG) in centrosymmetric crystal silicon are reported. The SHG is induced by extremely high electric field (up to 15 MV/cm) parallel to the crystal surface of a short terahertz (THz) pulse wh
Also found in:Medical,Wikipedia. sec·ond-line (sĕk′ənd-lĭn′) adj. 1.Relating to or being a secondary stage of something:the body's second-line defense against infection. 2.Being a drug or therapy that is used to treat a condition or disease only after another drug or therapy...
The growth rate is maximum for side scattering. This process can occur above the quarter critical density, unlike the first harmonic stimulated Raman scattering which occurs below the quarter critical density. 展开 关键词: Raman scattering Electromagnetic scattering Electromagnetic wave polarization ...
Second harmonic generation corresponds to an optical process of coherent radiation from electric-dipoles forming in the nonlinear optical material. In particular, SHG is related to the second term of the polarization expansion, thus it can be obtained only in materials which are noncentrosymmetric i....
Electric field-induced second harmonic generation allows electrically controlling nonlinear light-matter interactions crucial for emerging integrated photonics applications. Despite its wide presence in materials, the figures-of-merit of electric field-i
For a net drift to occur, sperm must adjust the phase between the two harmonics in time. Furthermore, we find that progesterone-evoked Ca2+ influx enhances the relative contribution of the second harmonic to the overall beat. Thus, the dynamics of principal and second-harmonic traveling waves ...
it is appreciated that increased conversion efficiencies occur from any apportionment of total organic layer unit thickness between the two L-B layer units. Significant improvements in conversion efficiencies can occur with the thickness of either L-B layer unit ranging up to 90 percent of the total...