Gallium nitride (GaN) is a compound made up of gallium (Ga) and nitrogen (N). It is a wide-bandgap semiconductor material that exhibits unique electrical and optical properties. Gallium nitride is widely used in the production of various electronic...

A family of specialized instruments used by ophthalmologists and optometrists to study a patient's eyes and prescribe...

Optoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light...

Any form of lens, optical system (camera, telescope, microscope, etc.), or opto-electronics utilized for the purpose of...

A photonic crystal surface-emitting laser (PCSEL) refers to a type of laser diode that emits light from its surface rather...

Pertaining to a device that responds to optical power, emits or modifies optical radiation, or utilizes optical radiation...

A PIN photodiode is a type of photodetector or semiconductor device used to convert light signals into electrical signals....

The process whereby sound waves are employed to form a three-dimensional image of an object. The process involves generally:...

Quantum confinement refers to the phenomenon in quantum mechanics where the motion of charge carriers, such as electrons or...

A quantum well is a structure in quantum mechanics that confines particles, such as electrons or holes, in one spatial...

Functional near-infrared spectroscopy (fNIRS) is a non-invasive neuroimaging technique that measures changes in hemoglobin...

Indium phosphide (InP) is a compound semiconductor material composed of indium (In) and phosphorus (P). It belongs to the...

Epitaxial deposition is a process used in semiconductor manufacturing and materials science to grow a thin crystalline...

Flow cytometry is a powerful technique used in biology and medicine for the quantitative analysis of the physical and...

An optical circuit, either monolithic or hybrid, composed of active and passive components, used for coupling between...

MicroRNAs (miRNAs) are a class of small, single-stranded RNA molecules, typically consisting of about 19 to 24 nucleotides,...

Epitaxial equipment refers to a set of specialized tools and systems used in the process of epitaxy, which is the growth of...

Optofluidics is an interdisciplinary field that combines principles from optics and fluidics to create devices and systems...

Rare earth dopants refer to elements from the lanthanide series, also known as rare earth elements, that are intentionally...

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

A transistor that uses an electro-luminescent source, a transparent base and a photoelectric collector.

GaN (gallium nitride) distributed feedback (DFB) lasers refer to a specific type of semiconductor laser based on Gallium...

1. The branch of physics that deals with the use of electrical energy to create or manipulate light waves, generally by...

An optogenetic technique that embeds genetically-engineered proteins to the heart to aid in terminating arrhythmias. After...

An instrument designed to measure the refractive power and range of accommodation of the eye. See ophthalmic instruments.

Chalcogenide refers to a class of compounds containing elements from group 16 of the periodic table, which includes sulfur...

An optical coupling device that uses light to bridge the gap between incompatible wire communications systems. It contains...

Means of correcting laser postweld shift. The correction procedure is applied to optoelectronic systems such as laser diode...

Also known as RAMP microscopy, random access multiphoton microscopy is a microscopic technique that uses multiple...

In semiconductor physics and materials science, the term "III-V materials" refers to compounds composed of elements from...

A telescopic system having an eyepiece, a reticle and an objective. The instrument measures wavefront power in diopters.

See Faraday rotation; optoisolator.

A molecular motor refers to a nano-sized device composed of organic molecules or other small-scale components that can...

A fiber-coupled photoconductive antenna (FCPA) is a type of optoelectronic device that combines a photoconductive antenna...

A laser warning and countermeasure system containing a sensor that indicates the direction of a laser beam, and analytical...

Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the...

Gallium arsenide phosphide (GaAsP) is a semiconductor alloy composed of gallium (Ga), arsenic (As), and phosphorus (P). It...

A discipline that combines optics and genetics to enable the use of light to stimulate and control cells in living tissue,...

A ruticon is an opto-electronic device in which light going through it can be modulated by an electric field. The...

Optoacoustic, or photoacoustic, refers to a phenomenon and related techniques that involve the generation of acoustic waves...

A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium...

Opsins are a group of light-sensitive proteins found primarily in the retinas of vertebrate and invertebrate eyes, as well...

In an optical fiber or waveguide communications system, an optoelectronic device or module that receives an optical signal,...

A device used to control or block a light beam by means of the Kerr electro-optical effect, and other electro-optic devices...

A monolithic device containing both photonic and electronic sources, detectors, modulators, etc., on a single semiconductor...

An exciton is a quasiparticle that represents the bound state of an electron and a hole in a solid-state material, typically...

Instruments used by ophthalmologists and optometrists to study the eye. There are, for instance, the ophthalmoscope to...

An LED (light-emitting diode) is a semiconductor device that emits light when an electric current passes through it. LEDs...

Fluorescent proteins are proteins that exhibit the property of fluorescence, which is the ability to absorb light at a...