7,300 terms
Photonics Dictionary
Clear All Filters xps x
pspicosecond
PSDposition-sensing detector; pseudo-second derivative
PSEpower spectrum equalization
pseudo-second-derivativeA method used to approximate the values of the homogeneous second derivatives at each iteration in the course of lens design and that excels the rate of convergence of the damped least squares method...
pseudocolorIn image processing, generating a color image from monochrome data by assigning a color to each of the gray levels.
pseudohologramCoded image obtained optically with a nonredundant pinhole array imaging aperture.
pseudoscopic imageAn image that is reversed contour or inside-out.
PSFpoint spread function
psipounds per square inch
psiapounds per square inch absolute
psigpounds per square inch gauge
PSKphase-shift keying
PSTMphoton scanning tunneling microscope
annular eclipseA type of solar eclipse that occurs when the sun is at perihelion and the moon is at apogee. Because the apparent size of the moon is insufficient to cover the sun, the outer edge of the solar disc...
APSactive pixel sensor; active pixel system; Advanced Photon Source; American Physical Society; atom probe spectroscopy; autocorrelated photon spectroscopy
bacteriorhodopsinA light-harvesting protein found in the purple membrane of a micro-organism called Halobacterium halobium. The protein undergoes a photocycle that involves several binary photochemical reactions that...
BPSKbinary phase shift keying
CIPScommunications, information and processing services
CPScathode potential stabilization
cpscycles per second
DPSKdifferential phase shift keying
DPSSLdiode-pumped solid-state laser
ellipsometerA spectrometer equipped with polarizing prisms and retardation plates that is used in the analysis of elliptically polarized light, mostly in the study of thin, evaporated films.
ellipsometryEllipsometry is an optical technique used to characterize the properties of thin films and surfaces. It is based on the measurement of changes in the polarization state of light reflected or...
EPSEuropean Physical Society
FLOPSfloating point operations per second
fpsframes per second; fixed pattern signal
FTPSIFourier transfer phase-shifting interferometry
Glan-Thompson prismA prism resembling a Nicol prism but having faces normal to the axis and the two parts divided by a glycerine film. Also known as Glan prism.
GPSglobal positioning system
infrared modulated ellipsometryA direct method of measuring refractive index that works best with flat-surfaced samples (i.e., those that are not dependent on special prism shapes) and produces data that are uniquely sensitive to...
JSIPSjoint services image processing system
kcpskilocycles per second
kpsithousand pounds per square inch
laser lithotripsyLaser lithotripsy is a medical procedure that uses laser energy to break down or fragment stones in various parts of the body, particularly in the urinary and biliary systems. The term "lithotripsy"...
LTPSlateral transitional phase shift
Mcpsmegacycles per second
MIPSmillion instructions per second
modulated transmission ellipsometryA method used to detect internal or residual microstresses in a material by using a laser beam to locate changes in polarization caused by the stress.
MOPSmillion operations per second
MPSKmultiple phase shift keying
off-axis paraboloid and ellipsoid mirrorOff-axis paraboloid and ellipsoid mirrors are specialized optical components used in various optical systems, particularly in applications requiring precise focusing, collimation, or imaging of...
OPSoptical power spectrum
Philips ionization gage -> Penning dischargeA standard source of high-charge-state ions for accelerators that has an external magnetic field oriented perpendicularly to the two cathode faces. Also called Philips ionization gauge.
ppspulses per second
PPSLTperiodically poled stoichiometric lithium tantalate
QPSKquadrature phase-shift keying
rpsrevolutions per second
SPSsolar power satellite
SPSESociety for Imaging Science and Technology
Photonics Dictionary