optical spectra

optical spectra

[′äp·tə·kəl ′spek·trə]
(spectroscopy)
Electromagnetic spectra for wavelengths in the ultraviolet, visible and infrared regions, ranging from about 10 nanometers to 1 millimeter, associated with excitations of valence electrons of atoms and molecules, and vibrations and rotations of molecules.
References in periodicals archive ?
Figure 3 shows the EEL optical spectra, which have two modes corresponding to the polarisations of the device.
The purpose of this contract is the acquisition of Interrogator optical spectra of fiber optic sensors, high sampling rate (35 kHz), bound to the Department of Electrical and Electronic Engineering at the Public University of Navarra, under the Project TEC2013 -47264-C2-2-R financed by the Ministry of Economy and Competitiveness and co-financed with FEDER funds.
His topics include vector analysis and Maxwell's equations, electromagnetic units and electric charges, methods of determining electric field and potential, the classical and quantum theories of lights, the classical and quantum theory of light-matter interaction, optical spectra of materials, the optics of eyes, electron microscopy in scanning and transmission modes, and fluorescence diffuse optical tomography.
The spectrograph will be capable of obtaining simultaneous optical spectra of up to 300 faint galaxies or stars at wavelengths between 390 and 1000 nm.
The scientists came to their conclusions after analyzing hundreds of optical spectra measured with the SMARTS 1.
Some specific topics covered include phonon fluctuations, the spectrum of optical absorption coefficient and optical parameters in GSM, and optical spectra and morphology of a-Si:H and a-SiC:H films.
For example, Raman spectroscopy is a well-known technique for "fingerprinting" molecules based on the optical spectra of their vibrational states, and the Raman spectra of many toxic chemicals are well known and distinct.
We present the of a search for supernova remnants (SNRs) in the galaxy NGC 6946 using longslit optical spectra taken at the Kitt Peak 4-meter telescope.
This leads to rather weak absorption band features in optical spectra of lanthanide ions in solutions, making such measurements rather difficult.
SUPERNOVAE are classified primarily by their optical spectra rather than by their light curves or explosion mechanisms.
He says this may be accomplished by exploring new optical spectra besides the traditional C-band, and new ways to carry information, e.
Accordingly, there is a growing need for a tool that can precisely measure optical spectra in the 3-?

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