 |
Greg Parker (born 1954) is a British physicist. He served as a Professor of Photonics at the University of Southampton. He spent 23 years in research and lecturing.
|
Greg Parker (born 1954) is a British physicist. He served as a Professor of Photonics at the University of Southampton. He spent 23 years in research and lecturing.
He now runs Parker Technology. [1] His research interests included the design and construction of Ultra High Vacuum (UHV) compatible semiconductor deposition systems, and the design and fabrication of Photonic Crystal circuits and devices. Most recently, he became interested in deep-sky imaging, macrophotography, microphotography, pin-hole camera photography and high-speed flash photography. [2] He is the designer and developer of ultra-high speed Xenon flash equipment. His photographic work is featured on the New Forest Observatory web site. [3]
He has 13 patents on optical devices and circuits and created three successful companies. His most recent spin-out from Southampton University was Mesophotonics Ltd. [4]
He is constructing the world's most powerful amateur deep-sky imaging system, the mini-WASP imaging array, named after the SuperWASP array [5] built for the Wide Angle Search for Planets. [6]
Parker published over 120 refereed journal and conference papers, a textbook on Solid-State Physics, Introductory Semiconductor Device Physics, [7] a "how to" book on astrophotography Making Beautiful Deep-Sky Images [8] and a large format book of deep-sky images taken from the New Forest Observatory, [6] called Star Vistas. [9]
Parker was a Chartered Engineer, a Chartered Physicist, and a Fellow of the Institute of Physics.
A charge-coupled device (CCD) is an integrated circuit containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in digital imaging.
Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky. The first photograph of an astronomical object was taken in 1840, but it was not until the late 19th century that advances in technology allowed for detailed stellar photography. Besides being able to record the details of extended objects such as the Moon, Sun, and planets, modern astrophotography has the ability to image objects outside of the visible spectrum of the human eye such as dim stars, nebulae, and galaxies. This is accomplished through long time exposure as both film and digital cameras can accumulate and sum photons over long periods of time or using specialized optical filters which limit the photons to a certain wavelength.
Photonics is a branch of optics that involves the application of generation, detection, and manipulation of light in form of photons through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Photonics is closely related to quantum electronics, where quantum electronics deals with the theoretical part of it while photonics deal with its engineering applications. Though covering all light's technical applications over the whole spectrum, most photonic applications are in the range of visible and near-infrared light. The term photonics developed as an outgrowth of the first practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s.
Terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency (THF), T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz (THz), although the upper boundary is somewhat arbitrary and is considered by some sources as 30 THz. One terahertz is 1012 Hz or 1000 GHz. Wavelengths of radiation in the terahertz band correspondingly range from 1 mm to 0.1 mm = 100 µm. Because terahertz radiation begins at a wavelength of around 1 millimeter and proceeds into shorter wavelengths, it is sometimes known as the submillimeter band, and its radiation as submillimeter waves, especially in astronomy. This band of electromagnetic radiation lies within the transition region between microwave and far infrared, and can be regarded as either.
Eli Yablonovitch is an American physicist and engineer who, along with Sajeev John, founded the field of photonic crystals in 1987. He and his team were the first to create a 3-dimensional structure that exhibited a full photonic bandgap, which has been named Yablonovite. In addition to pioneering photonic crystals, he was the first to recognize that a strained quantum-well laser has a significantly reduced threshold current compared to its unstrained counterpart. This is now employed in the majority of semiconductor lasers fabricated throughout the world. His seminal paper reporting inhibited spontaneous emission in photonic crystals is among the most highly cited papers in physics and engineering.
The VISTA is a wide-field reflecting telescope with a 4.1 metre mirror, located at the Paranal Observatory in Chile. It is operated by the European Southern Observatory and started science operations in December 2009. VISTA was conceived and developed by a consortium of universities in the United Kingdom led by Queen Mary University of London and became an in-kind contribution to ESO as part of the UK's accession agreement, with the subscription paid by the UK Science and Technology Facilities Council (STFC).
A robotic telescope is an astronomical telescope and detector system that makes observations without the intervention of a human. In astronomical disciplines, a telescope qualifies as robotic if it makes those observations without being operated by a human, even if a human has to initiate the observations at the beginning of the night or end them in the morning. It may have software agents using artificial intelligence that assist in various ways such as automatic scheduling. A robotic telescope is distinct from a remote telescope, though an instrument can be both robotic and remote.
Narrow-gap semiconductors are semiconducting materials with a magnitude of bandgap that is smaller than 0.5 eV, which corresponds to an infrared absorption cut-off wavelength over 2.5 micron. A more extended definition includes all semiconductors with bandgaps smaller than silicon. Modern terahertz, infrared, and thermographic technologies are all based on this class of semiconductors.
An infrared detector is a detector that reacts to infrared (IR) radiation. The two main types of detectors are thermal and photonic (photodetectors).
An image sensor or imager is a sensor that detects and conveys information used to form an image. It does so by converting the variable attenuation of light waves into signals, small bursts of current that convey the information. The waves can be light or other electromagnetic radiation. Image sensors are used in electronic imaging devices of both analog and digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as thermal imaging devices, radar, sonar, and others. As technology changes, electronic and digital imaging tends to replace chemical and analog imaging.
Federico Capasso is an applied physicist and is one of the inventors of the quantum cascade laser during his work at Bell Laboratories. He is currently on the faculty of Harvard University.
Charles H. Henry was an American physicist. He was born in Chicago, Illinois. He received an M.S. degree in physics in 1959 from the University of Chicago, and a Ph.D. degree in physics in 1965 from the University of Illinois, under the direction of Charlie Slichter. In March 2008, he was featured in an article in the Physics Illinois News, a publication of the Physics Department of the University of Illinois.
Michael Hochberg is an American physicist. He’s authored over 100 peer-reviewed journal articles, has founded several companies, and has been an inventor on over 60 patents. Hochberg's research interests include silicon photonics and large-scale photonic integration. He has worked in a number of application areas, including data communications, biosensing, quantum optics, mid-infrared photonics, optical computing, and machine learning. Much of his work in silicon photonics has been the product of a longstanding series of collaborations with Thomas Baehr-Jones.
Paul Suni is a Silicon Valley technologist, engineer, semiconductor device physicist and independent researcher. Since 1984, he has contributed to advancements in semiconductor electronics, photonics, digital imaging sensors and medical devices. In 2007, he dedicated himself to research concerning the scientific and philosophical foundations of technology and wellbeing.
The Center for Detectors (CfD) is a Rochester Institute of Technology College of Science academic research center. The CfD, established in January 2010 by Dr. Donald Figer, began as an expansion of the Rochester Imaging Detector Laboratory. Its mission is to enable scientific discovery, national security, better living, and commercial innovation through the design and development of advanced photon detectors and associated technology.
Ursula Keller is a Swiss physicist. She has been a physics professor at the ETH Zurich, Switzerland since 2003 with a speciality in ultra-fast laser technology, an inventor and the winner of the 2018 European Inventor Award by the European Patent Office.
Petr Horálek is a Czech astrophotographer, popularizer of astronomy and an artist.
Manijeh Razeghi is an Iranian-American scientist in the fields of semiconductors and optoelectronic devices. She is a pioneer in modern epitaxial techniques for semiconductors such as low pressure metalorganic chemical vapor deposition (MOCVD), vapor phase epitaxy (VPE), molecular beam epitaxy (MBE), GasMBE, and MOMBE. These techniques have enabled the development of semiconductor devices and quantum structures with higher composition consistency and reliability, leading to major advancement in InP and GaAs based quantum photonics and electronic devices, which were at the core of the late 20th century optical fiber telecommunications and early information technology.
Martin D. Dawson FInstP FOSA FIEEE FRSE FRS is a British professor of photonics who is research director of the Institute of Photonics at the University of Strathclyde and is Head of Fraunhofer Centre for Applied Photonics. He has made pioneering contributions in several applied photonics areas.
Hui Cao (曹蕙) is a Chinese American physicist who is the professor of applied physics, a professor of physics and a professor of electrical engineering at Yale University. Her research interests are mesoscopic physics, complex photonic materials and devices, with a focus on non-conventional lasers and their unique applications. She is an elected member of the US National Academy of Sciences and of the American Academy of Arts and Sciences.
| International | |
|---|---|
| National | |
| Other | |
 | This article about a physicist of the United Kingdom is a stub. You can help Wikipedia by expanding it. |
