Photoelastic modulator

A photoelastic modulator (PEM) is an optical device used to modulate the polarization of a light source. The photoelastic effect is used to change…

Papers overview

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2016

This photoelastic polyurethane resin has a Young's modulus at 25˚C of 2-5 MPa, a photoelastic constant at 25˚C of 1000×10 -12 Pa…

2009

A block of birefringent gelatin acts as a variable retarder when driven harmonically by a speaker coil and can be used to vary…

1999

Circular birefringence is also called optical rotation. An experimental set-up using the photoelastic modulator (PEM) is…

1997

A system for measurement of waveplate retardation using a photoelastic modulator (PEM) will be described. The system is intended…

1995

A photoelastic polarization modular of light operating in a wide spectral band (200-1000)nm is described. It features an optic…

1994

When photoelastic modulators (PEMs) are used with lasers as light sources, modulated interference effects may occur. Interference…

1992

A new infrared phase modulated ellipsometer (IRPME) is presented here. The polarization phase modulation technique takes…

1990

The construction and applications of a system for measuring optical birefringence are described. As the system utilizes a photo…

1988

Retarders based on total internal reflections are discussed. Quarterwave retardation can be obtained by a single reflection when…

1982

Instruments used to detect polarized light from astronomical objects are briefly compared. Photoelastic-modulator polarimeters…