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Meadowlark Optics - Wave Plates 6/24 MR 2024

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377 terms

Photonics Dictionary

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transmission efficiency

Measure of the amount of light that is transmitted, relative to the amount lost by absorption or reflection.

transmission electron microscope

A transmission electron microscope (TEM) is a powerful microscopy technique that uses a beam of electrons to create high-resolution images of extremely thin samples. In a TEM, electrons are...

transmission grating

A transparent diffraction grating that serves to transmit light.

transmission loss

The decrease in power that occurs when an optical beam or signal is transmitted through a system.

transmission plane

In polarized light, the plane of vibration that a polarizer will transmit.

transmission window -> spectral window

A wavelength region of relatively high transmittance, surrounded by regions of low transmittance.

transmissivity

The internal transmittance per unit thickness of a nondiffusing material.

transparency

An image affixed to a transparent photographic film or plate by photographic, printing or chemical methods. It may be viewed by transmitted light.

transparent

Capable of transmitting light with little absorption and no appreciable scattering or diffusion.

transponder

A receiver-transmitter device that automatically transmits a signal when the proper interrogating signal is received.

tristimulus colorimeter -> colorimeter

A colorimeter is a device used to measure and quantify the color characteristics of an object or a light source. It provides objective and standardized color information, typically expressed in terms...

uhlbricht sphere -> integrating sphere

A hollow sphere coated internally with a white diffusing material and provided with openings for incident beam, specimen and detector used for measuring the diffuse reflectance or transmittance of...

ultrasonic camera

A device that uses a piezoelectric crystal to convert ultrasonic sound waves, transmitted through a subject, into a voltage that modulates the electron beam of a cathode-ray tube.

ultrasonic light diffraction

The optical diffraction spectra formed, or the method that produces them, when a light beam is transmitted through a longitudinal sound field.

ultraviolet fiber optics

Ultraviolet (UV) fiber optics refers to optical fibers that are designed and optimized for the transmission of ultraviolet light, which is electromagnetic radiation with wavelengths shorter than...

ultraviolet-visible spectrometer

Also known as UV-VIS spectrometer, a device that measures the absorbance, reflectance or transmittance of light in the ultraviolet or visible wavelengths absorbed, reflected or transmitted. Commonly...

vertical blanking

With respect to a television system, a pulse transmitted at the end of each field to break off the cathode-ray beam as it begins the next field.

view camera

A camera that permits adjustments in the perspective of an image; this is accomplished by the camera design, which permits tilt, swing, rise or fall of the image transmitted. Also known as a...

vortex phase plate

A vortex phase plate is an optical device designed to impart a phase singularity, commonly referred to as a vortex or phase vortex, onto a light beam. This singularity results in a phase profile...

wavelength

Electromagnetic energy is transmitted in the form of a sinusoidal wave. The wavelength is the physical distance covered by one cycle of this wave; it is inversely proportional to frequency.

wedge spectrograph

A spectrograph in which the flux density transmitted through the entrance aperture is regulated by an optical wedge or similar device.

woods glass -> cobalt glass

Glass that transmits near-ultraviolet radiation but is opaque in the visible region. Also known as woods glass.

x-ray analysis

The series of processes used to identify and evaluate crystal structure by using crystalline solids to diffract x-rays. In the Laue method, radiation of a wide range of wavelengths is transmitted by...

XMTR

transmitter

zero-order transmission grating

A polyethylene grating that transmits the long wavelengths and diffracts shorter wavelengths in controlled directions.

zinc sulfide

A polycrystalline material that transmits in the infrared; it is used as a phosphor in x-ray and television screens.

zirconium fluoride

An infrared transmitting material used in the production of fluoride glasses for optical fibers.

Photonics Dictionary

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