Photonics

Laser, a device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation. The emission generally covers an extremely limited range of visible, infrared, or ultraviolet wavelengths. Many different types of lasers have been developed, with highly …

We see things because our eyes are sophisticated light detectors: they constantly capture the light rays bouncing off nearby objects so our brain can construct an ever-changing impression of the world around us. Similarly in  a camera, All the light traveling from the object enters a single lens before it …

Broadband fiber-optics carry information on pulses of light, at the speed of light, through optical fibers. But the way the light is encoded at one end and processed at the other affects data speeds. Basically, light or any other electromagnetic radiation has energy defined by its frequency and momentum defined by …

Space-division multiplexing (SDM) has recently attracted great attention as a promising technology to further improve the transmission capacity and spectral efficiency. Very recently, SDM employing twisted lights, also known as orbital angular momentum (OAM) carrying lights, provides an alternative approach to increasing the transmission capacity and spectral efficiency of optical communications. …

The world population is estimated to reach 9.8 billion by 2050. Ensuring an adequate food supply for such a large number of people would be challenging enough for agriculture. But climate change is putting even more pressure on farmers, agricultural companies, and crop scientists to protect plants from the effects …

Optoelectronic technology is a new technology formed by the combination of photon technology and electronic technology. Optoelectronics is the field of technology concerned with electronic device application to the sourcing, detection and control of light. Optoelectronics is  described as “a device that responds to optical power, emits or modifies optical …

A classical lens made of plastic or glass has a curved shape that bends the path of incoming light toward a single focal point on a piece of photographic film or an electronic sensor. This is because light travels faster through the thinner glass at the edges of the lens …

An event camera, also known as a neuromorphic camera, silicon retina or dynamic vision sensor, is an imaging sensor that responds to local changes in brightness.  Event cameras do not capture images using a shutter as conventional cameras do. Instead, each pixel inside an event camera operates independently and asynchronously, …

Night vision devices are becoming essential equipment for night driving, night flying and night surveillance, wildlife observation and search and rescue missions. According to Industry ARC’s report on Night vision devices, the market is estimated to grow to $20.5 billion in 2020 at a CAGR of 7%.   Since the …

Optical communications make use of light waves, very high frequency (100 terahertz) electromagnetic waves, for information transmission. Modern optical communications were begun in the 1960s, when lasers were invented as a coherent light source. Since then, the rapid development of photonic technologies has made possible optical communication links with a …