A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation. The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.
A laser diode is a semiconductor device similar to a light-emitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diode's junction.
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.
The vertical-cavity surface-emitting laser is a type of semiconductor laser diode with laser beam emission perpendicular from the top surface, contrary to conventional edge-emitting semiconductor lasers which emit from surfaces formed by cleaving the individual chip out of a wafer. VCSELs are used in various laser products, including computer mice, fiber optic communications, laser printers, Face ID, and smartglasses.
SPIE is an international not-for-profit professional society for optics and photonics technology, founded in 1955. It organizes technical conferences, trade exhibitions, and continuing education programs for researchers and developers in the light-based fields of physics, including: optics, photonics, and imaging engineering. The society publishes peer-reviewed scientific journals, conference proceedings, monographs, tutorial texts, field guides, and reference volumes in print and online. SPIE is especially well-known for Photonics West, one of the laser and photonics industry's largest combined conferences and tradeshows which is held annually in San Francisco. SPIE also participates as partners in leading educational initiatives, and in 2020, for example, provided more than $5.8 million in support of optics education and outreach programs around the world.
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.
The IEEE Photonics Award is a Technical Field Award established by the IEEE Board of Directors in 2002. This award is presented for outstanding achievements in photonics, including work relating to: light-generation, transmission, deflection, amplification and detection and the optical/electro-optical componentry and instrumentation used to accomplish these functions. Also included are storage technologies utilizing photonics to read or write data and optical display technologies. It also extends from energy generation/propagation, communications, information processing, storage and display, biomedical and medical uses of light and measurement applications.
Amnon Yariv is an Israeli-American professor of applied physics and electrical engineering at Caltech, known for innovations in optoelectronics. Yariv obtained his B.S., M.S. and PhD. in electrical engineering from University of California, Berkeley in 1954, 1956 and 1958, respectively.
James G. Fujimoto is Elihu Thomson Professor of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology (MIT) and a visiting professor of ophthalmology at Tufts University School of Medicine, Boston, Massachusetts.
Shun Lien Chuang was a Taiwanese-American electrical engineer, optical engineer, and physicist. He was a Fellow of the IEEE, OSA, APS and JSPS, and professor at the University of Illinois at Urbana-Champaign.
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.
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.
James J. Coleman is an electrical engineer who worked at Bell Labs, Rockwell International, and the University of Illinois, Urbana. He is best known for his work on semiconductor lasers, materials and devices including strained-layer indium gallium arsenide lasers and selective area epitaxy. Coleman is a Fellow of the IEEE and a member of the US National Academy of Engineering.
Alexandra Boltasseva is Ron And Dotty Garvin Tonjes Distinguished Professor of electrical and computer engineering at Purdue University, and editor-in-chief for The Optical Society's Optical Materials Express journal. Her research focuses on plasmonic metamaterials, manmade composites of metals that use surface plasmons to achieve optical properties not seen in nature.
Peter J. Delfyett Jr is an American engineer and Pegasus Professor and Trustee Chair Professor of Optics, ECE & Physics at the University of Central Florida College of Optics and Photonics.
Audrey K. Ellerbee Bowden is an American engineer and Dorothy J. Wingfield Phillips Chancellor's Faculty Fellow at Vanderbilt University, as well as an Associate Professor of Biomedical Engineering and Electrical Engineering. She is a Fellow of Optica, the American Institute for Medical and Biological Engineering and the International Society for Optics and Photonics (SPIE).
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.
Kei May Lau is a semiconductor engineer whose research topics have included high-electron-mobility transistors, light-emitting diodes, and laser diodes. She is Fang Professor of Engineering and Director of the Photonics Technology Center in the Hong Kong University of Science and Technology Department of Electronic & Computer Engineering.
John Ballato is an American materials scientist, entrepreneur, and academic. He holds the J. E. Sirrine Endowed Chair of Optical Fiber and is a professor of materials science and engineering, electrical and computer engineering, as well as physics and astronomy at Clemson University. He has received many international recognitions for his research on optical and optoelectronic materials, particularly as relates to optical fiber.
Juliet Tara Gopinath is an American optical engineer who studies the design and synchronization of lasers, diode laser arrays, liquid and variable-focus lenses, and other optical devices, and the properties of optical materials including optical fibers. She is Alfred T. and Betty E. Look Endowed Professor of Photonics and Quantum Engineering in the Department of Electrical, Computer and Energy Engineering at the University of Colorado Boulder.
