Preferred Label : responsivity;
Detailed label : responsivity in detection of radiation, R;
IUPAC definition : Detector input can be e.g. radiant power, irradiation, radiant energy. It produces
a measurable detector output which may be e.g. an electrical charge, an electrical
current or potential or a change in pressure. The ratio of the detector output and
the detector input is defined as the responsivity. It is given in e.g. ampere/watt,
volt/watt. The responsivity is a special case of the general term sensitivity. Dark
current is the term for the electrical output of a detector in the absence of input.
This is a special case of the general term dark output. For photoconductive detectors
the term dark resistance is used. If the responsivity is normalized with regard to
that obtained from a reference radiation the resulting ratio is called relative responsivity.
For measurements with monochromatic radiation at a given wavelength the term spectral
responsivity R λ is used. In some cases the relative spectral responsivity, where
the spectral responsivity is normalized with respect to the responsivity at some given
wavelength, is used. The dependence of the spectral responsivity on the wavelength
is described by the spectral responsivity function. The useful spectral range of the
detector should be given as the wavelength range where the relative responsivity does
not fall below a specified value.;
Origin ID : R05347;
Automatic exact mappings (from CISMeF team)
See also
Detector input can be e.g. radiant power, irradiation, radiant energy. It produces
a measurable detector output which may be e.g. an electrical charge, an electrical
current or potential or a change in pressure. The ratio of the detector output and
the detector input is defined as the responsivity. It is given in e.g. ampere/watt,
volt/watt. The responsivity is a special case of the general term sensitivity. Dark
current is the term for the electrical output of a detector in the absence of input.
This is a special case of the general term dark output. For photoconductive detectors
the term dark resistance is used. If the responsivity is normalized with regard to
that obtained from a reference radiation the resulting ratio is called relative responsivity.
For measurements with monochromatic radiation at a given wavelength the term spectral
responsivity R λ is used. In some cases the relative spectral responsivity, where
the spectral responsivity is normalized with respect to the responsivity at some given
wavelength, is used. The dependence of the spectral responsivity on the wavelength
is described by the spectral responsivity function. The useful spectral range of the
detector should be given as the wavelength range where the relative responsivity does
not fall below a specified value.