Polarizing beamsplitter

Fig. 5.5 Experimental setup. The diode laser is frequency scanned by one waveform generator, while the other controls the modulation. The light couples from a tapered fiber into and back out of microsphere WGMs, and the throughput is detected. A polarizing beamsplitter (PBS) separates throughput of the two polarizations. A diode pumped solid state laser can be used as an external heat source for the microsphere, and the vacuum chamber allows control over the ambient pressure. Reprinted from Ref. 5 with permission. 2008 International Society for Optical Engineering...

As discussed earlier, the PEM is, in many ways, an ideal modulation device for polarization-selective measurements. Thus, the optimum simultaneous multiwavelength CD instrument should incorporate both the PEM and CCD, and at the same time allow the PEM to operate at its resonant frequency. One way to overcome the basic incompatibility of the PEM and CCD is to use an optical demodulation scheme in which the two oppositely polarized components would be directed by a polarizing beamsplitter, to either different areas of the same CCD, or to different CCDs [14]. Since two distinct detector areas would be accessed by the oppositely polarized light, pixel-to-pixel sensitivity variations may be a significant source of noise. 

Fig. 2. Schematic diagram of the laser system to be used for a measurement of the 2Si/2-2P3/2 transition frequency in Si13+. (A/2 half wave plate, A/4 quarter wave plate, PBS polarizing beamsplitter, VCO voltage-controlled oscillator, AOM acoustooptic modulator, EOM electro-optic modulator)...

Figure 7 Schematic of the laser system used in the Raman FID and echo experiments. PC = Pulse compressor AOM = acousto-optic modulator PD = photodiode FB = feedback electronics PBS = polarizing beamsplitter 3PBF = 3-plate birefringent filter SDL/LDL = Stokes/Laser dye laser P = pellicle AC = autocorrelator OC = output coupler LBO/KDP = doubling crystals. Final pulses have widths of 0.5-1 ps and energies of 0.3-1 mJ (From Ref. 6.)... 

One photon from each pair (numbers 2 and 3) is directed to the inputs of a polarizing beamsplitter (PB S) which always transmits H, but reflects V polarization. Detectors D2 and D3 then record coincidences in which one and only one photon enters each. (Events in which both photons enter the same detector are rejected.) Consequently, photons 2 and 3 must be both H or both V. A GHZ state of four particles results with... 

Input subsystem, which includes the laser, scanning mechanism, and polarizing beamsplitters... 

Figure 3 Rotation stage SPR setup, d detectors PBS polarizing beamsplitter.

The advantage of PDI-FT spectrometers is their independence of PEMs. A PEM has a limited range of wavelength coverage, and there are no PEMs commercially available that operate into the far IR. Yet, there are polarizing beamsplitters that have good efficiency in the far IR, and hence PDI-ET-VCD is the likely approach to extend VCD into this region of the spectrum. To date, the performance of... 

Optical path Product of the geometrical path traversed by a light wave and the refractive index of the medium. Polarizing beamsplitter Optical element that separates light waves polarized in two orthogonal planes. Quarter-wave plate Device that introduces an optical path difference of a quarter wave-length between two orthogonally polarized waves. 

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