By diffraction of the molecular beam at a super-fine transmission grating
, the physicist was able to spatially separate the trimers.
2 lens was used and equipped with a 300 lines per mm transmission grating
The X-ray images and spectra obtained using Chandra's High Energy Transmission Grating
Spectrometer showed that a strong wind is being driven away from the center of NGC 1068 at a rate of about a million miles per hour.
Products: The company makes a product called a transmission grating
, which stitches together different colors of light so they can move through a fiber-optic line, then takes them apart again at the destination.
But the unusual prisms needed for an instrument of this type are not off-the-shelf items on today's commercial market, and a transmission grating
might be tried instead.
Using the density and composition parameters, it is possible to get a quick estimate of the diffraction efficiency of a transmission grating
, as shown in Fig.
In addition, he is a principal investigator and Associate Director of NASA's Chandra X-ray Observatory and headed the development of the High Resolution Transmission Grating
Spectrometer for this major space observatory.
The new view, using Chandra's Advanced CCD Imaging Spectrometer and High Energy Transmission Grating
, reveals unprecedented detail in the 211/42-arcminute-wide frame at left, including the first glimpse of an inner ring.
Just about anyone with a CCD camera can make an almost instant introduction to astronomical spectroscopy with the purchase a transmission grating
, such as the one sold by Rainbow Optics (1593 E St.
Simple spectrographs use a prism or transmission grating
to spread the image of an object into a spectrum and project it onto photographic film or a CCD.
Spectral dispersion is provided by a transmission grating
mounted in a standard 1 1/4-inch threaded eyepiece filter cell with a clear aperture of 25 millimeters.
Jenoptiks e PCGs (pulse compression gratings) are encapsulated quartz glass transmission gratings
with a diffraction efficiency of almost 100 percent.