spectral bandwidth

spectral bandwidth

[′spek·trəl ′band‚width]
(spectroscopy)
The minimum radiant-energy bandwidth to which a spectrophotometer is accurate; that is, 1-5 nanometers for better models.
References in periodicals archive ?
Typically, and for a high diffractive efficiency component, the spectral bandwidth of the HOE is proportional to the index modulation within the volume phase hologram.
Hence, there exist an optimal spectral bandwidth of BPF2 for which the captured spectral power density contributes optimally to sustain the existing pulses in the cavity.
There are two ways commonly used to increase the UMTS uplink data rate: improve spectral efficiency and increase uplink spectral bandwidth.
The spectral calibration [1, 2] of a spectrometer mainly consists of the accurate measurement of the Spectral Response Function [3, 4] (SRF, also known as Instrument Function [5]), from which the peak response wavelength and the spectral bandwidth of each detection channel can also be derived.
Saha presents students, academics, researchers, and professionals working in a variety of contexts with an examination of the technologies and design; control electronics, scientific applications, and evaluation; calibration; and results of current research into the systems of higher sensitivity, reduced noise, quantum efficiency, and higher spectral bandwidth necessary to obtain quality images of distant celestial objects utilizing high-quantum-efficiency photon-counting systems.
A very precise single optical frequency with a spectral bandwidth less than 10hz allows the comparison of very accurate optical clocks at each end.
For example, WLAN, which is a statistical time division multiplexing system, seems to be difficult to allocate the spectral bandwidth directly to users since every call in the system occupies the whole system bandwidth when it has chance to transmit the data.
New mobile generations are typically assigned new frequency bands and wider spectral bandwidth per frequency channel (1G up to 30 kHz, 2G up to 200 kHz, 3G up to 20 MHz, and 4G up to 100 MHz), but skeptics argue that there is little room for larger channel bandwidths and new frequency bands suitable for land-mobile radio.
The spectral bandwidth at 50% is typically 40 nm, and the half-intensity beam angle is 120 degrees.
0 nm spectral bandwidth, an enhanced scanning technology, which acquires spectral data at speeds more than 4,200 nm per minute.
The device operates in the spectral bandwidth from 400 to 1100 nm, with a peak sensitivity of 940 nm.
This is the broadest spectral bandwidth, coherent light source ever generated," Prod Henry Kapteyn, from the University of Colorado at Boulder, said.

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