The
Vision Spectra
Conference is now available ON DEMAND: Discover emerging trends in Cameras, Systems, and Sensors!
Register
Sign In
Suppliers
Products
Categories
Handbook
Dictionary
Careers
Resources
Photonics Spectra
BioPhotonics
Vision Spectra
Virtual Events & Summits
Educational Institutions
Add/Update Your Listing
Exhibitor Listing Portal
Become an Exhibitor
Buyers' Guide Print Edition
Marketplace Help
Subscribe
Advertise
Suppliers
Products
Categories
Handbook
Dictionary
Careers
Resources
Photonics Spectra
BioPhotonics
Vision Spectra
Virtual Events & Summits
Educational Institutions
Add/Update Your Listing
Exhibitor Listing Portal
Become an Exhibitor
Buyers' Guide Print Edition
Marketplace Help
Register
Sign In
Photonics Marketplace
Suppliers
Products
Handbook
Institutions
Dictionary
Show Filters
Hide Filters
Type
Definitions
Abbreviations/Acronyms
Browse by Letter
#
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
7,024 terms
Photonics Dictionary
Clear All Filters x
fs x
bring-in
The final correction of a polished surface or of an angle to the specified precision.
BRITE
Basic Research in Industrial Technology for Europe
broadband dielectric mirrors
Broadband dielectric mirrors, also known as broadband mirrors, are optical coatings designed to efficiently reflect or transmit light over a broad range of wavelengths. These mirrors are constructed...
broadband filter
A broadband filter is an electronic or electromagnetic device designed to pass a range of frequencies or signals within a specified bandwidth while attenuating or rejecting signals outside of that...
broadside radiation
Radiation that occurs perpendicular to the plane of the radiation device.
broken edge
A chamfer or protective bevel.
bronchoscope
An optical instrument designed to permit the visual examination of the interior of the bronchi.
Brownian motion
The behavior of microscopic solid particles suspended in a fluid, first observed by botanist Robert Brown in 1827 as a continuous random motion.
BSDF
bidirectional scatter distribution function
BTDF
bidirectional transmission distribution function
bubble chamber
A large tank filled with liquid hydrogen, with a flat window at one end and complex optical devices for observing and photographing the rows of fine bubbles formed when a high-energy particle...
bubble chamber optics
Specially designed optics for the observation and photographing of hydrogen in a bubble chamber.
bubble chamber photography
The photographic recording of gas bubbles produced when particles traverse liquid hydrogen in a bubble chamber.
bubble memory
->
magnetic bubble film
An amorphous film in which cylindrical bubbles of reverse magnetization can be formed to follow circuit paths usually made by depositing magnetic metal strips on the film surface. It is used in...
bubble writing
->
beam-addressable technology
The application of reversible writing with a laser beam on particular storage materials. In one method, an amorphous film is heated and then crystallized for writing. Bubble writing involves the...
buckyballs
->
fullerenes
Molecules composed entirely of carbon, in the form of a hollow sphere, ellipsoid or tube. Also called buckyballs. Cylindrical fullerenes are called carbon nanotubes or buckytubes.
BUF
beam utilization factor
buffer
1. In fiber optics, a protective material applied as an optical fiber cover that has no optical function. 2. In image processing, a peripheral that stores data between two active processing stages.
bulk nonreciprocal device
A device that functions throughout the continuous radiation of a linearly polarized plane wave, and whose nonreciprocity arises from the Faraday rotation of linearly polarized radiation.
bulk scattering
The scattering of light within a medium.
bump-forming optical disk
->
dye-polymer optical disc
A type of erasable data storage device that uses a medium deposited on the disc in two layers, each dyed to absorb a different wavelength of laser light. To record data, the lower layer is heated by...
bundle
A conical or cylindrical package of light rays emanating from a common point on the object.
Bunsen screen
A photometer screen that contains a diaphragm of paper or parchment with a translucent central spot of oil or paraffin.
Bunsen-Roscoe law
The law stating that the amount of chemical change produced is proportional to the amount of light absorbed. Actually, the change is also dependent on the intensity of light -- a fact named the...
burn
A surface imperfection caused by a polisher running dry too long. It occurs with felt or plastic polishers, and may appear as a reddish brown.
burn-in
The operation of a laser diode or other component prior to its use in its intended application, as a means of testing and stabilizing it.
burn-through
A detector's ability to sense an object on the opposite side of a thin but opaque barrier such as cardboard.
burning glass
A convex lens that brings an incident bundle of rays to a focus to produce intense heat at the focus.
burnishing
The process of lapping a thin edge of metal over the bevelled edge of a lens to maintain it within its cell.
burst mode laser
A high-frequency pulse-rate laser with an output limited by the heat capacity of the laser medium. Instead of having continuous cooling, the laser operates until the medium reaches a maximum...
burst pressure
The measure used in vacuum technology to quantify the total pressure capacity of the ferrofluidic seal before it fails.
bus
A local area network topology in which all nodes are tapped off a single cable, and all hear every transmission on the cable.
Butterworth filter
An electric filter that is characterized by a passband of the flattest possible shape.
button
A piece of glass with a high refractive index that is fused to the major blank.
button blocking
The production of a block by attaching the optical elements to a plate by means of individual buttons of pitch or other thermoplastic material.
BWDM
birefringent wavelength division multiplexing
BXA
Bureau of Export Control
byte
The number of bits used to represent a character.
c
centi-; speed of light in a vacuum
C-mount
A standard lens interface initially made for 16mm movie cameras and now used primarily on closed-circuit television cameras. It is a 1-in.-diameter, 32-thread-per-inch interface with a...
C/AHARS
compass/attitude heading and reference system
cable
->
fiber optic cable
A package for an optical fiber or fibers that may include cladding, buffering, strength members and an outer jacket.
cache
A portion of computer memory that is used for temporary storage of frequently accessed data. Substantially increases computer speed.
CADF
cathode-ray tube automatic direction finding
cadmium lines
The three lines in the spectrum of cadmium that have the purest radiations and that were first used by Michelson to calculate the standard meter.
cadmium red line
The narrowest line of the cadmium spectrum; the red line has the purest radiation.
cadmium sulfide
An inorganic compound, yellow to orange in color, that fluoresces strongly enough when bombarded by a high-current-density electron beam to be used as a high-intensity light source.
cadmium sulfide cell
A photoconductive cell having cadmium sulfide as its photoconducting material for the production of a very high dark-light resistance ratio.
calcite
A doubly refracting mineral used to produce polarizing prisms. It is uniaxial negative and in the trigonal division of the hexagonal system of crystals. Its indices are e = 1.486, w = 1.658; its...
calcite interference microscope
A microscope that allows examination of a small crystal and conveniently provides linearly polarized object and reference beams so that, by suitable orientation of an anisotropic crystal, the optical...
<
1
2
3
...
14
15
16
17
18
...
139
140
141
>
Photonics Dictionary
Need Help?
Explore Our Content
News
Features
Latest Products
Webinars
White Papers
All Things Photonics Podcast
Videos
Our Summits & Conferences
Industry Events
Bookstore
Join Our Community
Subscribe
Advertise
Become a member
Sign in
Contribute a Feature
Suggest a Webinar
Submit a Press Release
Mobile Apps
About Us
Our Company
Our Publications
Contact Us
Career Opportunities
Teddi C. Laurin Scholarship
Terms & Conditions
Privacy Policy
California Consumer Privacy Act (CCPA)
©2024 Photonics Media
100 West St.
Pittsfield, MA, 01201 USA
[email protected]
We use cookies to improve user experience and analyze our website traffic as stated in our
Privacy Policy
. By using this website, you agree to the use of
cookies
unless you have disabled them.