An infrared light-emitting diode (IR LED) is a semiconductor device that emits infrared light when an electric current passes through it. Similar to standard LEDs that emit visible light, IR LEDs are designed to emit light in the infrared spectrum,...

A laser having a lasing material that is a fluorescing organic dye. Depending on the dye used, it can produce emission in...

A near-infrared (NIR) camera is an imaging device designed to capture images in the near-infrared region of the...

An absorption peak refers to a sharp increase or spike in the absorption of electromagnetic radiation at a particular...

A coating applied to a neutral density glass that is designed to reduce the amount of light evenly across the transmitted...

Short wavelength infrared (SWIR) refers to the portion of the infrared spectrum that encompasses wavelengths roughly between...

Infrared optics refer to optical components and systems designed to manipulate and control infrared (IR) light, which lies...

An infrared light source is a device that emits light in the infrared spectrum, which lies beyond the visible spectrum of...

Color sensitivity extended to cover the entire visible spectrum out to the red.

A color whose hue is not produced by a single wavelength in the visible spectrum, but is instead produced by mixing the...

The analysis of light in the blue region of the visible spectrum.

A nitrogen vacancy (NV) refers to a specific type of defect or impurity in a crystal lattice where a nitrogen atom replaces...

An infrared detector is a device that is used to detect and measure infrared radiation, which lies beyond the visible...

That region of the electromagnetic spectrum to which the retina is sensitive and by which the eye sees. It extends from...

The study and photographing of microscope specimens in ultraviolet light; using an optical microscope containing fluorite...

Luminescence is the emission of light that occurs without the involved substance undergoing a significant increase in...

A helium-neon (HeNe) laser is a type of gas laser that emits visible red light at a wavelength of 632.8 nm. It operates...

Entirely analogous to color photography, but inclusive of light bands that do not appear in the visible spectrum.

An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical...

A noncrystalline, inorganic mixture of various metallic oxides fused by heating with glassifiers such as silica, or boric or...

Three filters used in making a color print of a color negative, red, green and blue-violet, respectively. Each filter...

See optical spectrum; visible spectrum.

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