Optoelectronics
Optoelectronics is the study and application of electronic devices that source, detect and control light, usually considered a sub-field of photonics. In this context, light often includes invisible ...
Some Cities Are Taking Another Look At LED Lighting After AMA Warning
If people are sleepless in Seattle, it may not be only because they have broken hearts. First-generation high-intensity models emit light that may disturb sleep, raise health risks.
World's most powerful X-ray laser gets upgrade
The fastest and most powerful X-ray laser in the world will soon be an astonishing 8,000 times faster and 10,000 times brighter, enabling scientists to see how nature works on the atomic level and on ...
How Copper Makes Organic Light-Emitting Diodes More Efficient
Use of copper as a fluorescent material allows for the manufacture of inexpensive and environmentally compatible organic light-emitting diodes (OLEDs). Thermally activated delayed fuorescence (TADF) e...
Engineers demo first processor that uses light for ultrafast communications
Landmark advance to usher in new era of ultrafast communications
Japanese Scientists Create Touchable Holograms
Japanese scientists from the Utsunomiya University Center for Optical Research and Education have created a hologram that can be safely handled, according to the Toronto Star. The three-dimensional vi...
World’s Fastest And Most Responsive Silicone Phototransistor Developed By University Of Madison Researchers
A new silicon phototransistor that is allegedly the fastest and most responsive ever made, has been created by researchers and engineers at The University of Wisconsin Madison (UW). Phototransistors a...
Is Black Phosphorous The Next Big Thing In Materials?
A new experimental revelation about black phosphorus nanoribbons should facilitate the future application of this highly promising material to electronic, optoelectronic and thermoelectric devices. A ...
Mass-produced, printable solar cells enter market and could change everything
Australian solar power experts making up the Victorian Organic Solar Cell Consortium have developed and begun to market solar cells that are created with a 3D printer. The group,  consisting of scient...
Earth saver? Lasers manipulate spin of 'asteroid' in simulated experiment
Researchers have honed laser technology to be able to slow, stop, and reverse the rotation of an asteroid-like target in a simulated space environment. The findings could potentially help deflect Eart...
Artificial Leaf Harnesses Sunlight For Efficient Fuel Production
"This result was a stretch project milestone for the entire five years of JCAP as a whole, and not only have we achieved this goal, we also achieved it on time and on budget," says Caltech's Nate Lewi...
The World’s Most Powerful Laser Has Just Been Fired In Japan
Scientists in Japan have set the record for the most powerful laser ever fired, producing a 2 petawatt pulse - that’s 2 quadrillion watts - using a device known as the Laser for Fast Ignition Experime...
Revolutionizing A Revolutionary Technology
Optogenetics, a technology that allows scientists to control cells with light, has blown the doors wide open in neuroscience since its debut less than a decade ago. With a new $1-million grant from th...
The Solution To Feeding The World's Growing Population Doesn't Require Any Sunlight Or Soil
The world’s population keeps growing and we keep using up the Earth’s land to grow more food – so what happens when traditional agriculture can no longer meet the demands of all those hungry bellies? ...
Making New Materials With Micro-Explosions
Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material. The new technique could lead to the simple creation and manufacture ...
Photoemission
The photoelectric effect is the observation that many metals emit electrons when light shines upon them. Electrons emitted in this manner can be called photoelectrons.According to classical electromag...
Photoemission - Wikipedia
Photovoltaic effect
The photovoltaic effect is the creation of voltage or electric current in a material upon exposure to light.The standard and obvious photovoltaic effect is directly related to the photoelectric effec...
Photoresistor
A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other w...
Photoresistor - Wikipedia
Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a pn-junction diode, which emits light when activated. When a suitable voltage is applied to the leads, electrons are able ...
Light-emitting diode - Wikipedia
Photodiode
A photodiode is a semiconductor device that converts light into current. The current is generated when photons are absorbed in the photodiode. A small amount of current is also produced when no li...
Photodiode - Wikipedia
Optocoupler
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-iso...
Optocoupler - Wikipedia
Solar cell
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect. It is a form of photoelectric cell, defined as a dev...
Solar cell - Wikipedia
Phototransistor
A photodiode is a semiconductor device that converts light into current. The current is generated when photons are absorbed in the photodiode. A small amount of current is also produced when no li...
Phototransistor - Wikipedia
Photomultiplier
Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet...
Photomultiplier - Wikipedia
Charge-coupled device
A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital va...
Charge-coupled device - Wikipedia
Laser diode
A laser diode, or LD, is an electrically pumped semiconductor laser in which the active laser medium is formed by a p-n junction of a semiconductor diode similar to that found in a light-emitting diod...
Laser diode - Wikipedia
Quantum cascade laser
Quantum cascade lasers (QCLs) are semiconductor lasers that emit in the mid- to far-infrared portion of the electromagnetic spectrum and were first demonstrated by Jerome Faist, Federico Capasso, Debo...
Quantum cascade laser - Wikipedia
Photonic integrated circuit
A photonic integrated circuit (PIC) or integrated optical circuit is a device that integrates multiple (at least two) photonic functions and as such is analogous to an electronic integrated circuit. T...
Image sensor
An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image. It does so by converting the variable attenuation of waves (as they pass through or re...
Image sensor - Wikipedia