Preferred Label : wavelength converter;
IUPAC definition : A wavelength converter converts radiation at one wavelength to radiation at another
detectable wavelength or at a wavelength of improved responsivity of the detector.
The classical wavelength converter consists of a screen of luminescent material that
absorbs radiation and radiates at a longer wavelength. Such materials are often used
to convert ultraviolet to visible radiation for detection by conventional phototubes.
In X-ray spectroscopy a converter that emits optical radiation is called a scintillator.
In most cases wavelength conversion is from short to long wavelength, but in the case
of conversion of long to short wavelength the process is sometimes called upconversion.
Wavelengths of coherent sources can be converted using nonlinear optical techniques.
A typical example is frequency doubling.;
Origin ID : W06660;
See also
A wavelength converter converts radiation at one wavelength to radiation at another
detectable wavelength or at a wavelength of improved responsivity of the detector.
The classical wavelength converter consists of a screen of luminescent material that
absorbs radiation and radiates at a longer wavelength. Such materials are often used
to convert ultraviolet to visible radiation for detection by conventional phototubes.
In X-ray spectroscopy a converter that emits optical radiation is called a scintillator.
In most cases wavelength conversion is from short to long wavelength, but in the case
of conversion of long to short wavelength the process is sometimes called upconversion.
Wavelengths of coherent sources can be converted using nonlinear optical techniques.
A typical example is frequency doubling.
