Interferometric trace

Figure 8.1c shows the interferometric autocorrelation signal of second harmonic generation (SHG) from a BBO crystal positioned at the sample plane of the microscope. The shape of the SHG trace was symmetrical with respect to the time origin the ratio of the maxima to the background was 8 1, indicating that nearly ideal... 

Figure 8.1 (a) Block diagram of the femtosecond near-infrared laser microscope system, (b) Spectrum ofthe light pulse from the Cr F laser, (c) Interferometric autocorrelation trace of SHG signal with envelope curve calculated assuming a chirp-free Gaussian pulse with 35 fs fwhm. 

Figure 8.3 Interferometric autocorrelation traces of the fluorescence intensities of perylene (a) and anthracene (b) microcrystals irradiated by two NIR Cr F laser pulses centered at 1.26 Xm with the same intensity.

Microspheres were monitored by scanning electron microscopy (SEM JEOL 35C), and their diameters were determined from the corresponding SEM microphotographs. Typically, ca. 500 particles in randomly sampled areas of microsphere specimens were analyzed. Molecular weight of poly(L-Lc) was determined by GPC. A system consisting of a LKB 2150 pump, Ultrastyragel 1,000, 500, 100, 100 columns, and Wyatt Optilab 903 interferometric refractometer was used for the measurements. GPC traces were analyzed by using calibration with narrow polydispersity < 1.15)... 

Figure 13.5 Interferometric autocorrelation traces of uncompressed and compressed pulses. 1 (a) Uncompressed 80-fs pulses obtained directly from Ti sapphire laser (power spectrum is Shown in the inset), (b) Compressed pulses after 1000 iterations. Pulses were compressed to (Taken from Fig. 2, Ref. [42].)...

Fig. 6.71 Interferometric autocorrelation trace of a 7.5 fs pulse with upper and lower envelopes [759]...

Fig. 2.8. Interferometric autocorrelation trace of the femtosecond titanium sapphire laser (taken from [203]). The pulse width is 70 fs. The trace was recorded with a step width of 1 fs...

Fig. 2.23. Interferometric autocorrelation trace directly measured at the molecular beam. The 3PI signal of Ks is detected while exciting with 90 fs laser pulses at A = 800 nm. The inset nicely depicts the fast 2.67 fs oscillation (taken from [260])...

A standard case of application of optical flow visualization is the air flow around a projectile or aerodynamic shape flying at high velocity (Fig. 6). This application to experimental ballistic studies can be traced back to the middle of the 19th century when the methods had been invented in their simplest form. A tremendous push forward in the development of these methods was the availability of laser light, from which particularly the interferometric methods benefitted (Fig. 7). Finally, the combination of holography with interferometry facilitated the mechanical design of practical interferometers. 

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