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semiconductor lasers News
Quantum Interferometry Reveals How Coherent Phonons Are Generated
TOKYO, May 24, 2019 — Scientists at Tokyo Institute of Technology and Keio University wanted to investigate ways to store, move, and process information at exponential speeds using heat and noise (also known as waste vibrations). To do so, they studied the excitation and detection of photogenerated coherent phonons in gallium arsenide (GaAs) semiconductors using an ultrafast dual pump-probe laser. To better understand the generation process of coherent phonons, the researchers utilized dual pump-probe spectroscopy....
Spin Lasers Could Transfer Data Faster, Use Less Energy than Conventional Lasers
BOCHUM, Germany, April 11, 2019 — Currently, rapid data transfer via optical fiber is accomplished by transmitting light signals that code data by modulating the light intensity. Due to physical limitations, data transfer that is based on a modulation of light intensity, without...
Optical Society Names Fumio Koyama the 2019 Nick Holonyak Jr. Award Recipient
WASHINGTON, D.C., April 2, 2019 — Fumio Koyama, of the Tokyo Institute of Technology, has been chosen by The Optical Society (OSA) as the recipient of its 2019 Nick Holonyak Jr. Award for his seminal contributions to vertical cavity surface-emitting laser (VCSEL) photonics and...
SemiNex Launches Laser Engine Production Line
PEABODY, Mass., March 29, 2019 — The production process at SemiNex Corporation has gone from a trial to fully functional as they begin manufacturing their laser engines on a newly implemented assembly line at their headquarters in Peabody, Massachusetts.
The Optical Society Awards Prize to Eli Yablonovitch
WASHINGTON, March 4, 2019 — The Optical Society (OSA), the leading global professional association in optics and photonics, has announced Eli Yablonovitch as the winner of its 2019 Frederic Ives Medal/Jarus W. Quinn Prize, the OSA’s top honor for a “pioneer”...
New High-Power, Tunable THz Laser Is Slated for Space Mission
CAMBRIDGE, Mass., Dec. 20, 2018 — A new terahertz (THz) laser designed by researchers at Massachusetts Institute of Technology (MIT) has demonstrated high constant power, tight beam pattern, and broad electric frequency tuning — three performance metrics that could mean less noise...
Trends in Silicon Photonics for Fiber Optic Communication
Nov 29, 2018 — The simplest form of fiber optic communication is coupling a laser to one end of a fiber, turning the laser on and off to transmit ones and zeros, and connecting a photodetector to the other end to record the photocurrent. This simple modulation...
All-Si Laser Could Advance Integrated Photonics
SHANGHAI, Jan. 22, 2018 — An optically pumped all-Si distributed feedback laser has been demonstrated using active layers of high-density Si nanocrystals. The new laser provides high optical gains, overcoming the low efficiency that has been historically exhibited in Si...
Hybrid Perovskite Material Could Be Key to Making Organic Diode Lasers
STATE COLLEGE, Pa., Dec. 5, 2017 — Researchers are closer to creating a tunable semiconductor diode laser from hybrid organic-inorganic perovskites. Using a material composed of an inorganic perovskite sublattice with relatively big organic molecules confined in the middle, a Penn...
Doping Quantum Dots Helps Lasers Release Light More Efficiently
LOS ALAMOS, N.M., Nov. 17, 2017 — Doping quantum dots (QDs) with additional electrons has been found to cause the specially designed QDs to produce laser light with less stimulation and less energy loss. By adding extra charge carriers to their QDs, researchers from Los Alamos...
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Semiconductor Lasers Power Up
May 25, 2017 — Improvements to semiconductor lasers promise big changes, from increases in power to expanded wavelengths. Other innovations could mean faster data rates for a bandwidth-hungry world. And then there are self-driving cars. Equipped with lidar,...
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Pilot Line Underscores Untapped Potential of Mid-IR Spectroscopy
Oct 24, 2016 — Less than a year after the development stage launch of three photonic pilot lines funded by the European Commission, one of these lines is set to provide open industry access to novel spectrometers operating in the mid-IR range: MIRPHAB...
Overcoming Precision-Guided Munitions, Sensing Challenges
Oct 19, 2016 — Situational awareness is an ever-increasing challenge for armed forces deployed across vast areas and engaged in multiple conflicts. Modern soldiers have become data collectors in today’s complex command, communication and control systems, and...
3 Questions Interview
Oct 12, 2016 — Walter Buell, principal director of the Electronics and Photonics Laboratory at The Aerospace Corp. in California, first became interested in lasers and optics more than 30 years ago. When his high school physics teacher allowed him to teach a lab...
From Masers to Lasers in Space — and at the Cinema!
Oct 7, 2016 — Sixty years ago, physicists Charles Hard Townes, James P. Gordon and H.J. Zeiger demonstrated the maser (microwave amplification by stimulated emission of radiation). It wasn’t long before Townes and fellow physicist Arthur Schawlow proved...
Quantum Cascade Laser Breakthrough for Advanced Remote Detection
Oct 3, 2016 — The atoms in a molecule can bend, stretch and rotate with respect to one another, and these excitations are largely optically active. Most molecules, from simple to moderately complex, have a characteristic absorption spectrum in the 3- to...
Dinneen Appointed Seminex Application Engineer
PEABODY, Mass., Sept. 1, 2016 — SemiNex Corp. has appointed Patrick Dinneen as its application engineer to support customers worldwide with the latest SemiNex technologies and technical services to meet their exacting requirements. “We are excited to have Patrick as our new...
Periodic Photonic Structures Focus Spaser Light for Nanoscale Optics
BETHLEHEM, Penn., August 4, 2016 — Single-mode operation in plasmonic lasers has been demonstrated using a technique that implements distributed feedback in a novel way that couples the resonant surface plasmon polariton (SPP) mode of the laser to a highly directional far-field...
Dilas Supplying Direct to Great Britain, Ireland
MAINZ, Germany, July 14, 2016 — Laser diode developer Dilas announced the direct selling of its diode laser components products to markets in Great Britain and Ireland. Stuart Sendall of Photosens Ltd. will be the local contact and also Dr. Kim Kreim of Dilas Diodenlaser GmbH.
Almae Acquires III-V Facilities, Technology
PARIS, July 7, 2016 — Semiconductor IP provider Almae Technologies SAS is taking over the facilities of spin-off company III-V Lab to use its epitaxy reactors and electronic nanolithography equipment for the production of semiconductor wafers for the telecommunications...
Ultrashort Pulse Laser Micromachining Surpasses Previous Limitations
May 4, 2016 — To fulfill current and future customer needs in the ultrashort pulse (USP) laser micromachining market, faster processing time is critical. In only the last few years the average power of these lasers has risen continuously, reaching an average...
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Lighting Up Microscopes: Advances and Emerging Sources
Apr 27, 2016 — Microscope developers are a resourceful bunch, opting to use the light source available to them at the time to peer at or below the surface of various materials. Even dating back to the 17th century, Galileo used sunlight to produce the very first...
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Denso, TriLumina Partner for Driving Technology
SOUTHFIELD, Mich., April 12, 2016 — Looking to speed up the adoption of lidar and driver monitoring technologies in advanced driver assistance systems, advanced technology supplier Denso International America Inc. has invested in TriLumina Corp., a semiconductor laser technology...
An Alternative to LEDs for Full-Field Imaging
Apr 6, 2016 — For some applications, the defining attributes of traditional lasers — high spatial and temporal coherence — can have an adverse effect. High spatial coherence introduces artifacts such as speckle in imaging, which degrades the image. As...
Paul Hartung Joins Seminex Board
PEABODY, Mass., March 15, 2016 — Seminex Corp. has added Paul Hartung to its board of directors. Hartung is the former president, CEO and chairman of Cognoptix, where he raised over $32 million in angel and venture capital funding to develop an eye scan for early detection of...
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June 2024
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