The phrase "absorption filter" is correct and usable in written English.
It can be used in contexts related to optics, photography, or audio engineering, where it refers to a device that absorbs certain wavelengths of light or sound.
Example: "The photographer used an absorption filter to reduce glare and enhance the colors in the landscape."
Alternatives: "light-absorbing filter" or "color filter."
An absorption filter is installed in the diaphragm to preferentially trasmit the nitrogen fluorescence light.
The first type is an absorption filter, in which absorption at the excitation wavelength is desirable and absorption at the emission wavelength is undesirable.
The wood absorption filter was an FIR filter and its impulse response was based on wood absorption data available in the literature [31].
A contact CMOS fluorescence imager is made of a CMOS image sensor chip, a thin-film absorption filter, and a fiber optic plate.
The key point of this approach is that the absorption filter selectively provides the high losses for off-resonance optical modes and relatively narrow transparency window (∼1.3 nm).
This paper consists of 1) MGT system design for swine bio gas 2) material evaluation for bio gas piping 3) computational fluid dynamics analysis for bio gas sulfur removal tower and sulfur absorption filter 4) the fundamental modeling using manufacturer's technical specifications and performance simulation by PEPSE-GT 5) field test and application of bio gas micro gas turbine.
In comparison, absorption filters are comprised of one single layer.
Multilayer absorption filters with a variable bandwidth are proposed for light monochromatization.
The SXR signal, solely from the desired, characteristic spectral range (900 1600) eV was selectively extracted and acquired using appropriate X-ray absorption filters on diode X-ray spectrometer.
In addition to describing the facility and its infrastructure, the goal of this work is to provide an extensive characterization of the GIF++ photon field with different configurations of the absorption filters in both the upstream and downstream irradiation areas.
The camera itself does not offer any means of wavelength dispersion or selection, but via absorption filters the spectral range effectively acquired can be adjusted to optimize the vizualisation of underdrawing material.
