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10 terms
Definitions: D
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DC blocking
->
zero-order filtering
The removal of the zero-order component of the Fourier spectrum distribution of an object with a small, opaque absorber or reflector in the Fourier plane, to produce images that appear bright on a...
dichroic coating
A dichroic coating, also known as a dichroic filter or dichroic mirror, is an optical coating designed to selectively transmit or reflect certain wavelengths of light while simultaneously absorbing...
dichroic mirror
A dichroic mirror, also known as a dichroic beamsplitter or interference filter beamsplitter, is an optical device that selectively reflects or transmits light based on its wavelength. Dichroic...
dielectric filter
->
interference filter
A filter that controls the spectral composition of transmitted energy partially by the effects of interference. Frequently, these filters are made up of thin layers of metals and dielectrics,...
diffrimicroscopy
->
zero-order filtering
The removal of the zero-order component of the Fourier spectrum distribution of an object with a small, opaque absorber or reflector in the Fourier plane, to produce images that appear bright on a...
diffuse-cutting filter
A color filter that is designed to gradually increase or decrease its absorption with wavelength.
diffusing filter
A filter purposely made to be placed before a lens to render the image rather unclear.
digital filter
A linear computation or algorithm performed on a selected series in the form of an input signal that produces a new series as output. The computational device may be a specifically designed...
digital signal processing
Digital signal processing (DSP) refers to the manipulation and analysis of signals, which are representations of physical quantities that vary over time or space. In the context of DSP, these signals...
dispersion filter
A complex filter that uses polarization and interference to transmit light that is nearly monochromatic.
Photonics Dictionary
Definitions
D
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