Induced transmission

Several neural receptors have been isolated recently within the epidermis of humans and mice. Many of these receptors, such as vanilloid receptor 1, are associated with ion dynamics in the peripheral nervous system.38 Since skin barrier function is also predicated on ion gradient stability,15,39 these receptors might be inducing transmission of itch related to barrier impairment. 

The noncollinear pump-probe experiment is depicted schematically in Fig. 13. The linearly polarized (P3) pump pulse is focused (LI) into the sample producing induced transmission changes. The polarization of the probe beam is adjusted to 45° relative to the pump with a half-wave plate (A./2) and a Gian polarizer (PI). By the help of an analyzer (P2) simultaneous detection of the parallel ( ) and perpendicular ( L) components of the energy transmission T(v, to) of the probe through the sample is installed. For blocked excitation (chopper, Ch) the sample transmission... 

If the beam has a Gausian transverse distribution in the medium, the TPA induced transmissivity change is described by Eq. (86) ... 

The measuring of radio-frequency-induced transmissions between magnetic energy levels of atomic nuclei. It is a powerful method for elucidating chemical structures, such as by characterizing material by the number, nature, and environment of the hydrogen atoms present in a molecule. This technique is used to solve problems of crystallinity, polymer configuration, and chain structure. See chemistry, analytical electron spin resonance spectroscopy thermal analysis. 

Figure 1 Induced transmission and its polarization at 670 nm following excitation at 520 nm in GSB thylakoids. The transfer time is 0.24 .04 ps.

The calculated field induced transmission of the same planar cholesteric texture in the non-polarized light is shown in Fig. 12.12. It is clearly seen that, with increasing field, the Bragg minimum is only slightly shifted to shorter wavelengths due to a distortion of the helix seen in the previous figure and then disappeared at a field of about 25 V/pm. Therefore, in the absence of defects the field cannot increase the period of the helix. An essential increase of the cell thickness does not influence the result. The measurements of the field dependence of the transmission spectra of a cholesteric with the same parameters have confirmed the absence of the red shift of the Bragg minimum [15]. 

In addition, we have also investigated the propagation properties of Gaussian pulses in the multiple QWs systems. With the same pitlse drrration and the central carrier fi-equency above, we have also foimd the phenomenon of self-induced transmission with Gaussian pulses. The input... 

Figure 15 (Color online) The inpnt pnlse area 0(z = 0) and the effective area (z = 0) (squares) for the occnrrence of self-induced transmission as a function of the electron...

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