Laser interferometer, schematic

A laser interferometer is shown schematically in Fig 1. The parameter measured is the free surface velocity of the specimen material. The principle of operation is as follows. Light from the single frequency gas laser is focused on the... 

Kosters laser interferometer— The Kosters laser interferometer (Kosters-prism [i] interferometer) is a laser-illuminated double-beam interferometer. The main advantage of this type of interferometer (as represented schematically in Fig. 1) is its high immunity to environmental noise due to the close vicinity of the two interfering beams. This immunity makes it an ideal tool for high-precision measurements, e.g., for the determination of -> surface stress changes (A g) of solid electrodes. 

The overall schematic of the zero creep/laser interferometer system is shown in Figure 2. The system consists of the reactor in which the sample and reference mirrors are located, the interferometer, and the data collection system. The... 

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...

We have undertaken an experiment to try to improve the performance of pulse amplifier experiments. The system is shown schematically in figure 2. It consisted of a continuous-wave C102 dye laser amplified in three stages by a frequency tripled Q-switched NdtYAG laser. The output energy was approximately 2.0 mJ in a 150 MHz linewidth and was up-shifted from the continuous-wave laser by 60 MHz caused by the frequency chirp. This light was then spectrally filtered in a confocal interferometer with a finesse of 40 and a free spectral range of 300 MHz. The linewidth of the filtered radiation was approximately 16 MHz. 

Figure 24.14 The left panel is a plan of the testing area near the LENS (reflected shock) tunnel 1 — 8 test section 2 — TDL probe 3 — 4 nozzle M = 8-16 4 — 8" reflected shock tube 5 — fiber optic and signal line conduit 6 — data acquisition and 7 — TDL system optical table. The right panel is a schematic diagram of the setup used to record water-vapor absorption in high-enthalpy flows 1 — InGaAs detectors 2 — tunable diode laser Ai = 1400.74 nm 3 — ring interferometer 4 — tunable diode laser A2 = 1395.69 nm and 5 — HoO reference cell...

Figure 4.10 (Top) Schematic diagram of a Michelson interferometer. ZPD stands for zero path-length difference (i.e., the fixed mirror and moving mirror are equidistant from the heamsplitter). (From Coates, used with permission). (Bottom) A simple commercial FTIR spectrometer layout showing the He-Ne laser, optics, the source, as well as the source, interferometer, sample, and detector. [Courtesy of ThermoNicolet, Madison, WI (www.thermonicolet.com).]...

FT-Raman systems generally use an NIR laser source, such as the Nd/YAG laser, and a Michelson interferometer. A schematic FT-Raman spectrometer is shown in Fig. 4.65. 

A schematic diagram of a commonly used stabilization system is shown in Fig. 5.50. A few percent of the laser output are sent from the two beam splitters BSi and BS2 into two interferometers. The first FPIl is a scanning... 

Fig. 2.14. Schematic setup of the regenerative mode-locked titanium sapphire laser (Spectra Physics Tsunami) with a simplified diagram of the servo electronics used to phase lock the cavity of the slave resonator to that of the master resonator AOM acusto-optic modulator OC output coupler GTI Gires-Tournois interferometer Ml to M4 high reflectors (taken from [223])...

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