Photonics Dictionary: E

In the tolerancing of optical elements, the displacement of the optical axis from the mechanical axis.

A change in the refractive index of an optical fiber caused by variation in the length of the fiber core in response to mechanical stress.

An electro-optic deflector is a device that can change the direction of light beams using an electric field. It operates based on the electro-optic effect, which involves the modulation of the...

An electron-beam lithography (EBL) system is a sophisticated nanofabrication tool used in the semiconductor industry and research laboratories to pattern extremely fine features with sub-micrometer...

A mechanical shutter that has had its timing escapement replaced with an electronic timing circuit. This circuit allows a wider range of exposure times, can be more accurate, and, placed in a circuit...

Potential hazards to a system's application and installation, including temperature variations, chemical reactivity, mechanical stress and moisture.

An etalon is an optical device that consists of two parallel reflecting surfaces separated by a precise and known distance. It operates based on the principle of optical interference and is used to...

Coating carried out in a sealed chamber evacuated by a mechanical pump in series with an oil diffusion pump to a pressure less than 10-4 mm of mercury, measured by a vacuum gauge. At such a low...

A process, either naturally occurring or mechanically induced, whereby water is changed from its liquid state into a vapor.