The Demon-NIR extends the well-established Demon Echelle Monochromator
series, providing wavelength ranges from 190 to 1,100nm and resolving powers of 75,000 to 200,000.
The measurement performance achieved by the instrument's monochromator
technology includes a wavelength resolution setting from 0.05 to 10 nm, a wavelength accuracy of [+ or -] 0.05 nm at 633 and 1,523 nm or [+ or -] 0.2 nm from 350 to 1,700 nm, a level accuracy of [+ or -] 1.0 dB, level sensitivity of -80 dBm from 900 to 1,600 nm, a measurable power range from -80 to +20 dBm, a close-in dynamic range of 60 dB (peak [1.0 nm, resolution 0.05 nm), and a sweep time of less than 0.5 s.
Generally, a tunable monochromatic source such as a tunable laser  or a monochromator
with higher resolution  is used to stimulate the spectrometer from wavelength to wavelength.
Among his topics are spectrometer concepts, the dispersion elements: diffraction grating and refraction prism, design considerations of monochromator
and spectrograph systems, detectors for optical spectroscopy, the illumination of spectrometers and samples, the calibration of spectrometers, and stray and false light.
They discuss the theory and advantages, scanning electronic microscopy (SEM) instrumentation developments for imaging and microanalysis, extremely high-resolution SEM using a beam monochromator
, applications from nanotechnology to biological research, transmission electron microscopy, imaging and analysis of single atoms at ultimate detection limits, oxide interfaces, and future directions.
They are suitable for networking using LAN (local) or WAN (internet) and feature a new predispersive monochromator
. * FOSS NIRSystems Inc., Laurel, MD 20723.
The 165 mm diameter reactor beam is equipped with a selection of Soller collimators, beam-limiters, and a pyrolytic graphite (PG) filter to tailor the beam for the dual 20x20 [cm.sup.2] double-focusing monochromator
system that provides monochromatic fluxes exceeding [10.sup.8] n/[cm.sup.2]/s onto the sample.
It is the SP2150 monochromator
with dual grating turret equipped with two interchangeable gratings, the dispersion of one of which was twice that of the other.
The light emitted from an optical fibre is divergent, and under normal conditions the limited size of the optics in the OSA monochromator
results in divergent light being blocked, and so unable to contribute to a strong optical signal.
The central fragment of the arc is projected via a lens with double magnification onto the input of monochromator
, controlled by computer.
The CM-5 uses a large sphere with a gloss trap to measure sample with specular (di:8[degrees]) or without specular (de:8[degrees]) components of the surface and a newly developed monochromator
with 10nm interval from 360-740nm.
assembly is based upon a carousel design with space for three individual monochromators