FWHM


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full width half maximum

,

FWHM

The width of a peak or the bandpass of an emission or absorption spectrum in a laboratory photometer or spectrophotometer. When combined with other characteristics of the device, this can be used to predict suitability of the photometer or spectrophotometer for specific applications and measurements.
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XRD studies of anodized commercial aluminum substrate reveal that the intensity of diffraction peak pertaining to preferentially oriented crystallographic plane (311) is decreased whereas its FWHM is increased at all anodization temperatures.
This contributed to the high color-purity excitonic emission and narrow FWHM of PL spectra of NBE-T-CQDs as demonstrated by the temperature-dependent PL spectra.
Curve (iii) indicates the ASE temporal profile with an 800 ps FWHM, very sharp rise time (200 ps), and longer fall time (600 ps) corresponding to the 20 mg QD concentration in 5 mL solution with the previously specified pulse energy.
This becomes most evident for FWHM, with dynamic lung function parameters correlating significantly with delta and expiratory values, yet not with inspiratory values.
However, a significant positive correlation was observed between BOLD response parameters (CVR, amplitude, TTP and FWHM) and baseline CBF for GM (Figure 6).
Regarding crack propagation, the spectrum bandwidth and full width at half maximum (FWHM) [21] broadened, accompanied by a sudden broadening of the spectrum that occurs at a 5.4 mm cracklength, in comparison with curve A in Figure 5(a).
Caption: FIGURE 4: Rocking curve FWHM values of samples A, B, C, D, and E for [11[bar.2]0] azimuth (open square) and [0001] azimuth (solid circle).
The 2D bands are blueshifted by about 20 [cm.sup.-1] and can be typically deconvoluted into (a) a single Lorentzian with FWHM of about 40-41 [cm.sup.-1] (see Figure 3(a)); (b) four Lorentzians (FWHM of 22 ([+ or -]1) [cm.sup.-1]) for 2D band with total width of 45-56 [cm.sup.-1] (see Figure 3(b)); and (c) six Lorentzians (Figure 3(c)) for 2D band with total width larger than 56 [cm.sup.-1].
A large regularization parameter will result in oversmoothness like Figure 11(c) with a FWHM of 0.39 cm; on the contrary, a small one may lead to image distortion because of noise like Figures 11(e) and 11(f) with deviations of 0.30 cm and 0.51 cm.
In addition, the NanoUV-VIS tool evaluates and estimates important parameters related to the absorption bands of NPs, including maximum optical absorbance, surface plasmon resonance (SPR) peak, and the full width at half maximum (FWHM) of the UV-VIS spectra.
The peak wavelength emission is 1331.4 nm, and the FWHM is 0.3 nm.
The position and full width at half-maximum intensity (FWHM) of these elementary curves should let us identity each associated phase by comparison with simulated patterns (Lanson and Besson 1992).