Light sensor breakthrough could enhance digital cameras

... most, one electron's worth of current for every photon (particle of light) that strikes the pixel," says ... "Instead generating multiple excitons per photon could ultimately lead to better low-light ... a current that flows as a result. Normally, each photon is converted into at most one exciton. This ...

Quantum dots and nanomaterials: Ingredients for better lighting and more reliable power

... one electron-hole pair for every absorbed photon in most solar cells," Jabbour says, but ... generating more multiple electron-hole pairs per photon to achieve increased power-conversion efficiency. ... a higher number of electrons for each absorbed photon from incident light. In most bulk ...

Research highlights potential for improved solar cells

... has shown that carrier multiplicationwhen a photon creates multiple electronsis a real phenomenon in ... When a conventional solar cell absorbs a photon of light, it frees an electron to generate an ... Photogeneration of another electron by a second photon results in a two-hole, one-electron state, ...

Avalanche photodiodes target bioterrorism agents

... can create much larger currents for each photon compared to normal photodiodes. Once the ... "One electron-hole pair that is produced by a photon absorption event creates a million other ... are sensitive enough to detect only one photon at a time. When the Geiger-mode detector is ...

Avalanche photodiodes target bioterrorism agents

... can create much larger currents for each photon compared to normal photodiodes. Once the ... "One electron-hole pair that is produced by a photon absorption event creates a million other ... are sensitive enough to detect only one photon at a time. When the Geiger-mode detector is ...

UC San Diego nanostructures will raise thin-film solar cell efficiency

... can increase solar cell efficiency by raising photon absorption by lowering the energy band gap. ... current, explained Edward Yu. This enables high photon absorption efficiency, high electron and hole ... path to the electrode. This design maximizes photon absorption while minimizing a major drain on ...

Tiny avalanche photodiode detects single UV photons

... UV portion of the spectrum capable of single photon detection sensitivity. However, these fragile ... first to demonstrate back-illuminated single photon detection from a III-nitride photodetector. These ... photocurrent gain greater than 107, single photon detection efficiencies of 23 percent, dark count ...

Yale scientists make 2 giant steps in advancement of quantum computing

... quantum computers into real practice sending a photon signal on demand from a qubit onto wires and ... not very difficult to generate signals with one photon on average, but, it is quite difficult to generate exactly one photon each time. To encode quantum information on ...

Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria

... where chlorophyll molecules are located and, therefore, the ability of photon energy to migrate becomes restricted. In other words, the energy in an individual photon visits a smaller number of chlorophylls, and that's an advantage to the ...

U of T physicists squeeze light to quantum limit

... of modern quantum technology. The smallest particle of light is a photon and it is so small that an ordinary light bulb emits billions of photons ... undergo an "identity crisis" and one can no longer tell what an individual photon is doing," Steinberg says. The authors then squeezed the triphotonic ...

Small Animal Imaging Market: Biospace Lab Wins Frost & Sullivan Accolade for Its Successful Product Line Strategy

... Lab offers a wide range of in vitro and in vivo imaging products. The photon Imager(TM), a real time bioluminescence and fluorescence system, ... to product innovation -- the latest being the In Actio(TM) module in photon Imager that gives users the unique capability to perform imaging ...

Professor Strauf's research is Nature Photonics’ cover article

... dead-times in the emission process itself resulting in a net single photon generation rate of 100 MHz into an optical fiber. As described in the News & Views section of the issue, More futuristic applications of single photon states include photonic networks designed to achieve scalable quantum ...

Zenobia Therapeutics Successfully Completes Initial Phase of Its Service Agreement With Syntonix Pharmaceuticals

... has rapid access to high-energy synchrotron sources for data collection through an agreement with Shamrock Biostructures, located near the Advanced photon Source (APS) in Chicago, IL. "Synchrotron radiation was required for this program, and we are fortunate to have routine access to the only ...

SPIE and Laurin Publishing Announce Prism Awards Finalists

... Corp. OptiPro Systems Optronic Laboratories Inc. Osram Opto Semiconductors GmbH Osram Opto Semiconductors Inc. Oxsensis Ltd. photon etc Inc. Physik Instrumente PicoQuant GmbH (2 products) PolarOnyx Polytec GmbH (2 products) Powerlase Pranalytica Inc. ...

Nikon Instruments Introduces Exclusive VAAS Detector Imaging Method for Confocal Microscopy

... added back, or the original data can be further deconvolved using this extra collected information. "The VAAS Detection system leaves no photon behind, satisfying the constant need for clearer images, that are of higher signal-to-noise levels, while enabling the collection of more data than ...

'The photon force is with us': Harnessing light to drive nanomachines

... concept and a giant step forward in speed, the next developments will be in improving the mechanical aspects of the system. But," says Tang, "the photon force is with us." ...

Stanford: Quantum computing spins closer

... pulses, which are slower than laser-light pulses. "The optics were quite tricky," Press said. The researchers had to find a single, specific photon emitted from the qubit in order confirm the spin state of the electron. That photon, however, was clouded in a sea of scattered photons from the ...

Solar power game-changer: 'Near perfect' absorption of sunlight, from all angles

... solar power. "To get maximum efficiency when converting solar power into electricity, you want a solar panel that can absorb nearly every single photon of light, regardless of the sun's position in the sky," said Shawn-Yu Lin, professor of physics at Rensselaer and a member of the university's Future ...

CV Therapeutics Announces Presentations at American Heart Association Scientific Sessions 2008

... Presentation, Monday, November 10, 2008, 3:00 p.m. CST Lexiscan(R) (regadenoson) injection High Reproducibility of Serial Adenosine Single photon Tomography Myocardial Perfusion Studies: A Quantitative Analysis from the ADVANCE 2 Study; Poster Presentation, Sunday, November 9, 2008, 9:30 a.m. ...

Nano-sized electronic circuit promises bright view of early universe

... of heat generated in the titanium section, one can measure the light energy absorbed by the detector. The device can detect as little as a single photon of far infrared light. "With this single detector, we have demonstrated a proof of concept," said Gershenson. "The final goal is to build and test ...

MIT reports finer lines for microchips

... been accepted for publication in the journal Optics Letters and were recently presented at the 52nd International Conference on Electron, Ion and photon Beam Technology and Nanofabrication in Portland, Ore. Schattenburg and colleagues used a technique known as interference lithography (IL) to ...

Lilly to Acquire SGX Pharmaceuticals

... which is a state-of-the-art synchrotron facility enabling X-ray crystallography and protein structure determination built by SGX at the Advanced photon Source (APS) located at the Department of Energy's Argonne National Laboratory in Chicago, IL. "After a successful collaboration over the past ...

Detecting dangerous chemicals with lasers, exploring the brain's circuitry with light and more

... Experimental Physics and head of the Sub-Department of Atomic and Laser Physics at the University of Oxford, will present "Meet the Fock States: The photon Revisited" on Wednesday, May 7 about recent developments in quantum optics. These developments have enabled the generation of exotic non-classical ...

The future of computing -- carbon nanotubes and superconductors to replace the silicon chip

... state of one qubit can be transferred into a microwave electrical vibration of the waveguide, like plucking a guitar string. This microwave photon of energy recording the first qubits state can then be controllably transferred to the other qubit crucially, without destroying these delicate ...

DNA is blueprint, contractor and construction worker for new structures

... depending on the temperatures at which the particles were mixed, said Schatz. Using the extremely brilliant X-rays produced by the Advanced photon Source synchrotron at Argonne National Laboratory in combination with computational simulations, the research team imaged the crystals to determine ...

Nikon Instruments Launches Fully-Automated A1 Confocal Laser Microscope Series

... Adaptable Apertures will allow increased control over the attainment of experimental data. It also can provide for the post acquisition recovery of photon data normally lost to physical pinhole size during the course of the experiment. This unique detector system will allow for virtually adjusting ...

New nanostructured thin film shows promise for efficient solar energy conversion

... doped with nitrogen or just embedded with cadmium selenide quantum dots, the nanocomposite showed higher performance, as measured by the "incident photon to current conversion efficiency" (IPCE), the team reported. The nanocomposite's IPCE was as much as three times greater than the sum of the IPCEs ...

3-D photonic crystals will revolutionize telecommunications

... project, BASF is researching into the development of these crystals together with partners such as Hanover Laser Center, Thales Aerospace Division, photon Design Ltd., the Technical University of Denmark and the Ecole Nationale Suprieure des Tlcommunications de Bretagne. By the end of 2008, the partners ...

Luminol-enhanced Assay for Superoxide Anion (O2 face="Symbol" )

... specific enhancement reagent increases photon output but is noncytotoxic and does not denature ... tubes and placed into a luminometer to measure photon emission. The luminometer was programmed to ... RLU values were established. The decrease in photon output coupled with the longer incubation period ...

Engineers visualize electric memory as it fades

... device during each electrical pulse, the researchers used the Advanced photon Source - the country's most brilliant source of X-rays for research, ... device." He adds that the very high brightness of the Advanced photon Source allowed the researchers to focus X-rays to unprecedented small ...

Just one nanosecond: Clocking events at the nanoscale

... work was accomplished using Argonne National Laboratory's Advanced photon Source, a synchrotron light source capable of generating very tightly ... new tools to see those dynamics." Using the X-rays from the Advanced photon Source and measuring how the X-rays were reflected as the atoms in the ...

A new wide field-of-view confocal imaging system and its applications in drug discovery and pathology

... and a detection pinhole aperture, and nonlinear microscopy including two photon and multiphoton fluorescence microscopy, 9-15 and second and third ... detection volume located in the focal plane of the specimen can reach the photon detector. The dichroic filters in the detection path are long pass ...

Wisconsin Engineers Devise Cutting-Edge Method to Cut Cheese

... occurs when a laser produces photons whose energies exceed the energies of the bonds holding molecules together, Li explains, so that a photon striking one of these bonds immediately breaks it. The millions of photons emitted by a UV laser smash all the bonds in a material, obliterating it ...

Bruker AXS unveils new X-ray detector

... designed with zero detector noise to remove some of the interference in locating low-level X-ray signals, with the goal of detecting each individual photon as it strikes the detector. It also features an active scanning area 200 mm in diameter which can resolve larger protein crystal unit cells. ...

Midwest called next 'biotech hotbed'

... School, and the Fermi National Accelerator Lab (operating the world's highest energy particle accelerator). Argonne operates the $20 billion advanced photon source, a key tool for protein and proteomics research. "The Midwest has the ability to build on its existing strengths especially in the areas of ...

High Sensitivity, Wide Dynamic Range, Horseradish Peroxidase (HRP) ELISA Using the LMax Microplate Luminometer (MaxLine Application Note #41)

... The dynamic range spans approximately 5 logs. As predicted, the longer the integration time, the higher the RLUs. (Recall that the detector is a photon counter which reports the cumulative number of photons detected during the specified integration time. The calculated ...

Receptor Binding Assays using Fluorescence Polarization Detection: the [FP]2TM Characterized Tracers

... can be used to probe these differences in rotation rates since the process of fluorescence, the time required for a fluorophore to emit a photon after excitation, also called the fluorescence lifetime, requires a measurable amount of time, typically in the nanosecond range for most ...

Determining the Signal-to-Noise Ratio and Optimal Photomultiplier gain setting in the GenePix 4000B

... of excitation light to the sample but also for directing the light emitted from the excited fluorophore onto the photon detector. Noise In all systems there are two noise components to consider, dark current noise and Shot ...