121 terms
Photonics Dictionary: E
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eelectron charge
e-beamelectron beam
EAFelectron-arc furnace
EALMelectronic address light modulator
EBAMelectron-beam accessed memory
EBCelectron-beam coating
EBERelectron-beam electroreflectance
EBESelectron-beam-exposure system
EBICelectron-beam-induced current
EBIRelectron bombardment-induced response
EBRelectron-beam recording
EBTelectron-beam tomography
ECCerror correction code; electronically controlled coupling
ECMelectronic countermeasure
ECOelectron-coupled oscillator
ECRelectron cyclotron resonance
EDDelectronic data display
edge sensing, second derivativeTechnique for the precision evaluation of coincidence of a laser beam's center with the edge of the object under study and exact location of that edge by means of a double electronic differentiation...
edge-emitting LEDAn edge-emitting light-emitting diode is a type of LED structure where light emission occurs primarily along the edge of the semiconductor chip rather than from the surface. Edge-emitting LEDs are...
EDMelectron discharge machining
EDPelectronic data processing
EELSelectron-energy-loss spectroscopy
EFPelectronic field production
EHPelectron-hole pair
EIAElectronic Industries Alliance
EILelectron injection laser
electric quadrupole lensA device that uses four electrodes set in an alternating positive-negative polarity series to focus the beams of charged particles employed in electron microscopes and particle accelerators.
electro-optic Fabry-Perot spectroscopyThe spectroscopic analysis of interference patterns using an electronic imaging tube with a Fabry-Perot interferometer to record the fringes.
electro-optic modulatorAn electro-optic modulator (EOM) is a device used to modulate the amplitude, phase, or polarization of light waves using an external electrical signal. Electro-optic modulation is a fundamental...
electro-optics1. The branch of physics that deals with the use of electrical energy to create or manipulate light waves, generally by changing the refractive index of a light-propagating material;
2....
electroluminescenceThe nonthermal conversion of electrical energy into light in a liquid or solid substance. The photon emission resulting from electron-hole recombination in a PN junction is one example. This is the...
electromagnetic focusing -> electromagnetic lensAn electron lens consisting of a homogeneous axial electric field and a magnetic field used in high-quality image tubes for high modulation transfer function and small geometrical distortion...
electromagnetic lensAn electron lens consisting of a homogeneous axial electric field and a magnetic field used in high-quality image tubes for high modulation transfer function and small geometrical distortion...
electromagnonAn electromagnon is a quasiparticle excitation that combines aspects of both magnetism and electric polarization in a crystal lattice. Specifically, it refers to a collective excitation of spins and...
electrostatic analyzerA device that permits only electrons within a narrow velocity range to pass through it, while rejecting those above and below.
electrostatic deflectionThe deflection of an electron beam by the action of an electrostatic field that has a component perpendicular to the direction of the beam.
electrostatic focusThe use of an applied electrical field to focus a cathode-ray tube's electron beam.
electrostatic image dissectorA nonmagnetic instrument utilizing an electrofocus and deflection tube with a photocathode for imaging purposes. The optical image is converted into a photoelectric output at the photocathode and is...
electrostatic lensThe electrical distribution that serves to influence an electron beam in the same way that an optical lens affects a light beam.
electrostatically focused image tubeAn image intensifier that uses electrostatics to amplify and focus the electronic image.
electrowetting displayAn electrowetting display (EWD) is a type of electronic display technology that utilizes the principles of electrowetting to control the behavior of colored oil droplets on a hydrophobic surface....
ELINTelectronic intelligence
EMelectron microscope; electromagnetic; electromodulation
embedded visionEmbedded vision refers to the integration of computer vision technologies into various embedded systems, devices, or machines. Computer vision involves teaching machines to interpret and understand...
EMCCDelectron multiplying CCD
emission microscopeA type of electron microscope in which the specimen also serves as the cathode source.
emission spectrumAn emission spectrum is a graphical representation or a characteristic pattern of the wavelengths or frequencies of light emitted by a source, such as an atom, molecule, or celestial object. It shows...
EMMAelectron microscopy and microanalysis
ENGelectronic news gathering
envelopeAlso referred to as a bulb. The glass housing that encloses an incandescent source, or the glass or metal housing that encloses an electron tube.
Photonics DictionaryE