Michelson setup

Fig. 2.6. Schematic illustration of the experimental setup for pump-probe anisotropic reflectivity measurements with fast scan method. PBS denotes polarizing beam splitter, PD1 and PD2, a pair of matched photodiodes to detect p- and s-polarized components of the reflected probe beam, PD3 another photodiode to detect the interference pattern of He-Ne laser in a Michelson interferometer to calibrate the scanning of the pump path length...

For expansion measurements in a pulse calorimeter, two other groups of measurement techniques have been developed interferometric techniques and optical imaging techniques. Different interferometers have been developed by INRiM in Italy to measure the longitudinal expansion of a sample with a laser interferometer [49, 50] and by NIST in USA to record thermal expansion using a modified Double-Michelson-Interferometer [51]. A expansion measurement setup using a similar device to NIST was recently built at the Austrian Foundry... 

Fig. 5.37a,b. Mode selection with a Fox-Smith selector (a) experimental setup (b) maximum reflectivity and inverted finesse /F of the Michelson-type reflector as a function of the reflectivity Rbs of the beam splitter for R2 = Rs= 0.99 and Abs = 0.5%... 

Fig. 2.2. Experimental setup (as used for the investigations on NasB). An argon ion laser (ps mode-locked fs all lines, visible) pumps either a femtosecond laser system (a) (OPO synchronously pumped optical parametric oscillator SHG second-harmonic generator) or a picosecond laser system (b) (taken from [178]). The pulse duration and spectral width of the laser pulses are measured by an autocorrelator (A) and a spectrometer (S) respectively. A Michelson arrangement allows the probe pulses to be delayed At) with respect to the pump pulses. A quadrupole mass filter (QMS) enables the selection of the ensemble of investigated molecules ionized by a pump probe cycle. A secondary electron multiplier (SEM) detects the intensity I of the ions as a function of the delay time At. A Langmuir-Taylor detector (LTD) measures the total intensity /o of the cluster beam. The ratio I/Iq as a function of the delay time At is called the real-time spectrum...

A setup of the Michelson interferometer is schematically shown in Figure 4.4. It has three main optical components, namely, beamsplitter BS, movable mirror M, and fixed mirror M2. In the following discussion, mention is made of the two optical axes in the interferometer one is the center line of the arm with Mj and the other is the center line of the arm with M2. In Figure 4.4, these optical axes are perpendicular to each other. 

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