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6 terms
Photonics Dictionary: P
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luminescence x
P x
photoluminescence mapping
A technique used for noncontact inspection of semiconductor wafers. The material is illuminated by an excitation source that stimulates photoluminescence; the resulting spectrum is analyzed, yielding...
photoluminescence
Photoluminescence is a phenomenon in which a material absorbs photons (light) at one wavelength and then re-emits photons at a longer wavelength. This process occurs when electrons in the material...
PN-junction luminescence
Discharge that results when a doped semiconductor crystal with a PN junction is charged with a low-voltage direct current. The dual process depends on excitation caused by electrical energy...
phosphorescence
Luminescence is the emission of light from a source that is delayed by more than 10-8 s following excitation.
PL
photoluminescence
PLE
photoluminescence excitation
Photonics Dictionary
P
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