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  • CCD Technology

Photonics Spectra
Dec 2010
Princeton InstrumentsRequest Info
Princeton Instruments’ eXcelon deep-depletion CCDs and cameras are for low-light, near-infrared imaging and spectroscopy. Improvements over standard deep-depletion technology include reduced etaloning and higher quantum efficiency across a broader wavelength range, from 200 to 1100 nm. The new CCDs, with 1340 x 100-, 1340 x 400-, 1024 x 1024 and 1340 x 1300-pixel resolutions, are available in the company’s Pixis and Spec-10 deep-cooled, low-noise camera platforms. Suitable for broad UV-NIR detection and for NIR Raman spectroscopy, solar wafer/cell inspection, NIR luminescence and astronomy, the back-illuminated CCDs provide good photon-detection capabilities. The sensors deliver peak quantum efficiency of >95% and as much as a 45% increase over a broader UV-NIR wavelength range.


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The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
back-illuminated CCD
A CCD that has been reduced in thickness by etching so that light passes through the back layers of the CCD. This type of CCD typically has higher sensitivity, especially to blue light, and higher quantum efficiency than front-illuminated CCDs, because the light is not required to pass through the CCD's gate structure.
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
See fluorescence; phosphorescence.
Raman spectroscopy
That branch of spectroscopy concerned with Raman spectra and used to provide a means of studying pure rotational, pure vibrational and rotation-vibration energy changes in the ground level of molecules. Raman spectroscopy is dependent on the collision of incident light quanta with the molecule, inducing the molecule to undergo the change.  
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