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quantum efficiency News
CMOS Sensors Drive Low-Light Applications
Oct 25, 2021 — Low-light cameras are designed with enhanced capabilities for recording images in settings with little to no illumination. These cameras perform well in poor lighting, in the dark, or with night vision. The fundamental components of a low-light...
Sensors Capture Image Data from Near and Far
Oct 25, 2021 — Imaging sensors reveal key details during the exploration of many areas of science, from untangling events at the quantum level and the fundamental processes of the cell to building our understanding of the wider cosmos. Imaging sensor technologies...
Fast EEF Spectroscopy Quantifies Unstable Samples
Oct 18, 2017 — Excitation-emission fluorescence spectroscopy (EEF) is particularly interesting in materials characterization, environmental science and the food industry. For example, the user can quantify multiple emitting sites in rare-earth doped crystals1 or...
Advances in CMOS Image Sensors Open Doors to Many Applications
Sep 1, 2015 — Understanding the key differences between CCD and CMOS image sensor technologies will allow distinguishing advantages and limitations of each type of device and help in selecting the optimal device for a given application. Since the invention of...
SWIR Applications and Challenges: A Primer
Sep 5, 2014 — Infrared imaging opens endless possibilities for industrial, scientific and security image-processing applications. But short-wave infrared cameras must overcome the limitations of InGaAs sensor technology to provide high-quality images....
Semitransparent PV cells go designer
Jun 5, 2014 — Solar panels are hard to miss. Whether you see a dozen perched on the roof of a house or a few thousand laid down in rows on a solar farm, their dark metallic hues and large presence are eye-catching. For the majority of their existence, solar...
e2v to Supply Image Sensors to Japan’s XFEL
ESSEX, England, Sept. 19, 2012 — The imaging solutions manufacturer will provide Japan’s x-ray free-electron laser (XFEL) with sensors that will allow scientists to “see” the atomic structure of proteins and other nanoscale structures.
Quantum Efficiency Advances Sensors for Night Vision
Jun 1, 2012 — In recent years, low-noise CMOS imaging sensors have triggered many new opportunities and applications for the night-vision market. Although low noise is key, it is not the only parameter to consider when dealing with low-light vision. Sensitivity...
The Night Glows Brighter in the Near-IR
Apr 1, 2012 — The night sky is never absolutely dark, even after removing the influence of starlight and diffused sunlight from the other side of the globe. Spectral irradiance, caused by airglow, is several times stronger in the 900- to 1700-nm band than in the...
Selecting CCDs for Raman Spectroscopy
Feb 1, 2011 — Raman spectroscopy is a well-known technique used to identify materials and chemicals. Until the 1980s, most Raman instruments used dedicated monochromators with photomultiplier tube (PMT) detectors.1 These early systems enjoyed the high sensitivity...
Opto Diode Acquires International Radiation Detectors
NEWBURY PARK, Calif., Jan 11, 2011 — Opto Diode Corp., a division of ITW and a member of the ITW Photonics Group, announced its recent acquisition of International Radiation Detectors (IRD) Inc., a semiconductor radiation device manufacturer. IRD’s operations will be moved...
A New Benchmark in Photon Counting
OLCHING, Germany, Oct. 14, 2010 — Laser Components formed a strategic partnership with PicoQuant GmbH to produce photon counting modules with the highest quantum efficiency and record-breaking dark count rates, said the company. The new Count photon counting modules achieve an...
Laser Components, PicoQuant to Develop Photon Counters
OLCHING, Germany, Sept. 16, 2010 — Laser and optoelectronic components and services manufacturer Laser Components GmbH announced it has forged a strategic alliance with PicoQuant GmbH of Berlin, to develop and commercialize photon counters. Working together, Laser Components DG...
Electron-Multiplying CCD for Lidar Applications
Aug 1, 2010 — Until recently, only photomultiplier tubes were suitable for low-light imaging. However, this technology and associated poor spatial resolution were not suited to scientific applications. Solid-state devices such as image intensifiers or...
Back-Illuminated CMOS Image Sensors Come to the Fore
May 10, 2010 — Solid-state image sensors come in two variants: CCD and CMOS. CCDs generally offer superior image quality. However, CMOS dominates in manufacturing volume because it permits an integrated solution in which both the imaging device and processing...
How it Works
Jul 30, 2008 — Raman spectroscopy is based on the inelastic scattering of light and the excitation of vibrational and rotational modes of molecules. This causes a red shift of scattered photons, the so-called Stokes shift. These spectra, which deliver information...
Microchip Laser Exploits Yb:LuAG Properties
Jan 1, 2008 — Ytterbium-doped lutetium aluminum garnet (Yb:LuAG) has several desirable qualities as a solid-state laser material. Compared with the more familiar Yb:YAG, it has a larger effective emission peak cross section and a higher thermal conductivity. It...
Device Counts Single Photons
GAITHERSBURG, Md., Oct. 16, 2007 -- A new transistor uses quantum dots to help it count individual photons (the smallest particles of light). Because it could be easily integrated into electronics and may operate at higher temperatures than other single-photon detectors, it offers...
(18 results found)
May 2024
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