A vacuum pump in which heated oil or another substance is forced through jets as a vapor that collides with gas molecules and carries them away from the chamber being evacuated.

Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within...

Hydrophobic is a term used to describe substances or materials that repel or do not readily interact with water. The word...

An electrowetting display (EWD) is a type of electronic display technology that utilizes the principles of electrowetting to...

Conductor element for use in integrated electro-optic systems that measures current flowing through it.

An electron-gun system is an assembly used to generate and control a focused beam of electrons. Electron guns find...

A small erect-image telescope for use as a sighting device on a rifle. The chief requirement is a long eye relief to avoid...

Nondestructive measurement of the delta and alpha of clad optical fibers that involves interferometry with the fiber...

Laser-induced fluorescence (LIF) is a spectroscopic technique that involves using a laser to excite molecules or atoms,...

A fast-action shutter inserted between one end of a laser rod and the end mirror; when inserted to prevent emission and then...

An electron-beam lithography (EBL) system is a sophisticated nanofabrication tool used in the semiconductor industry and...

The bending of an electron stream that occurs when the stream travels through a medium such as very thin metal foil.

A near-infrared (NIR) spectrometer is an analytical instrument used to measure the absorption, transmission, or reflection...

A type of sheathing for fiber optic cable that incorporates a coil of metal; often used in harsh environments.

An oil immersion condenser used to permit only light that has been diffracted or dispersed by a microscope specimen to enter...

An analytical technique used to determine, identify and localize impending malfunctions. It is based upon quantitative and...

A type of high-speed photographic shutter that uses Faraday rotation to produce exposure times as fast as 1 microsecond. It...

Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on...

Sapphire optical fiber is a type of optical fiber made from single-crystal sapphire, which is a form of aluminum oxide...

Coating carried out in a sealed chamber evacuated by a mechanical pump in series with an oil diffusion pump to a pressure...

A photometer screen that contains a diaphragm of paper or parchment with a translucent central spot of oil or paraffin.

Magnetorheological finishing (MRF) is a precision optics polishing technique used for shaping and finishing optical surfaces...

A metal coil or coils wrapped around the outside of the neck of a cathode-ray tube. Current passing through the coils...

Oleophobic is a term used to describe substances or materials that repel or resist oils. The word oleophobic comes from the...

A tank with a boiling solvent at the bottom and a ring of cold piping higher up that condenses the liquid and returns it to...

Circular dichroism (CD) is a spectroscopic technique used to study the structural characteristics of chiral (asymmetric)...

Carbonization is a process in which organic materials are heated in the absence of air, leading to the decomposition of the...

A method of cleaning and drying coated optical components. The cooled parts are placed in a container above a boiling...

An interference filter in which a very thin metal foil with a periodic array of square holes (inductive mesh) or a thin...

An arranged series of coils, magnets or electromagnets disposed in such a way that the resulting magnetic fields generate a...

A hydrogel is a three-dimensional network of polymer chains that are hydrophilic, meaning they have a strong affinity for...

Spectroscopy characterized by the Mossbauer effect - recoilless emission and absorption of nuclear gamma radiation- which...

A small mirror, sometimes plane and sometimes concave, attached to the rotating coil of a galvanometer to cause a spot of...

A ruggedized scintillation counter used in oil well logging. The cylindrical housing contains a gamma ray source, a...

A type of interferometer in which two coils of optical fiber are arranged so that light from a single source travels...

Measurement of surface roughness or quality through the use of a diamond-pointed stylus connected to a coil in an electric...

Turbidity is a measure of the cloudiness or haziness of a fluid caused by the presence of suspended particles. These...

A polished plano-parallel plate that is contacted to an unpolished glass surface to permit see-through analysis of the...

The term used in reference to vacuum systems using oil and diffusion pumps, describes the migration of pump fluids and their...

Van der Waals forces refer to the attractive or repulsive forces between molecules (or parts of molecules) that arise from...

An oil required by oil-immersion objectives that is applied between the exterior of the objective lens and a cover glass or...

A fiber optic gyroscope (FOG) is a type of gyroscope that uses the interference of light waves to detect changes in...

A saturated compound of carbon and hydrogen used as a liquid coating material for optical components in high-power laser...

A lamp that has mercury in a tube or bulb that has first been evacuated. The electricity travels through the vapor between...

A device used to delay transmission of a signal for functions such as memory loops, sequential processing or built-in...

A type of tubing used to protect optical fiber cables, consisting of a wire spiral of aluminum, galvanized steel or...

A method of thin-film deposition in which electrons boiled off a heated cathode are used to melt the coating material. If a...

An excited energy state of an atom or atomic system that has a longer lifetime than the ordinary excited state and typically...

A device for the internal inspection of hard-to-get-at mechanical parts, such as rifle barrels, sewer pipes, oil wells, or...

A form of high-power microscope objective where the space between the object and the first element is filled with an oil...

A galvanometric scanner, also known as a galvanometer scanner or galvo scanner, is a type of optical scanning device used to...

A positioning drive that rotates a fraction of a 360° turn when the motor coils are activated, resulting in linear or...

In micropositioning, a remote positioning device in which an electric current drives a movable armature mounted on an...

The liquid used in microscopy to fill the space between the high-power objective lens and the microscope slide in order to...

A device used in thin-film deposition; the material to be evaporated is placed in a crucible that is heated inductively by...

Scanning electron microscopy (SEM) is an advanced imaging technique used in microscopy to obtain high-resolution,...

A sensor generally used for infrared imaging. It consists of two chambers separated by a thin, blackened membrane. An...

A coil used to focus an electron beam by the generation of a magnetic field parallel to the beam.