Fangliang Gao and Guoqiang Li of South China University of Technology have developed a technique to grow high-quality indium gallium arsenide (InGaAs) on gallium arsenide substrates using an ultrathin amorphous buffer [Appl. Phys. Lett., ...
The UK’s University of Leeds has fabricated what is claimed to be the world’s most powerful terahertz (THz) laser chip, exceeding 1 Watt output power from a quantum cascade laser (QCL) (Lianhe Li et al, ‘Terahertz quantum ...
Tags: Laser Chip, Electronics
Researchers at the National Institute of Advanced Industrial Science and Technology (AIST) in Japan have used evanescent wave coupling to enhance the light output power of red light-emitting diodes (LEDs) by a factor of 3.8 [Guo-Dong Hao ...
Tags: Red LEDs AlGaInP, LED, Electrical, Electronics
For third-quarter 2013, AXT Inc of Fremont, CA, USA has reported revenue of $20.5m, down 1.4% on $20.8m a year ago and 14% on $23.8m last quarter. Fiscal Q3/2012 Q4/2012 Q1/2013 Q2/2013 Q3/2013 Revenue $20.8m $18.9m $22.4m $23.8m $20.5m ...
Asahi Kasei Microdevices Corporation and Kyushu University in Japan detectors based on indium antimonide (InSb) [Koichiro Ueno et al, Jpn. J. Appl. Phys., vol52, p092202, 2013]. The reshave developed room-temperature mid-infrared ...
Tags: Photodiode, Electrical, Electronics
LayTec AG of Berlin, Germany, which makes in-situ metrology systems for thin-film processes, focusing on compound semiconductor and photovoltaic applications, has announced that Ryo Nakao from NTT Photonics Laboratories (NTT) is using ...
Tags: Electrical, Electronics
University of Tokyo has improved the temperature performance of 1.3μm quantum dot (QD) laser diodes bonded to silicon [Katsuaki Tanabe et al, Appl. Phys. Express, vol6, p082703, 2013]. Photonic circuits are commonly created in silicon, ...
Tags: Quantum Dot Lasers, Electrical, Electronics
For second-quarter 2013, AXT Inc of Fremont, CA, USA has reported revenue of $23.8m, down 5.5% on $25.2m a year ago but up 4.5% on $22.4m last quarter. "Our results for the second quarter came in within our guidance range, with revenue ...
Tags: AXT GaAs GaAs substrate InP Germanium, Electrical, Electronics
A transnational team of researchers has reported the first electrically pumped exciton-polariton laser device using an arsenide semiconductor microcavity [Christian Schneider et al, Nature, vol. 497, p348, 2013]. The team was variously ...
Tags: Electrical Pumping, Electrical, Electronics
For first-quarter 2013, AXT Inc of Fremont, CA, USA has reported revenue of $22.4m, down 5% on $23.5m a year ago but up 18% on $18.9m last quarter. Fiscal Q1/2012 Q2/2012 Q3/2012 Q4/2012 Q1/2013 Revenue $23.5m $25.2m $20.8m $18.9m $22.4m ...
Tags: Electrical, Electronics, Raw Materials
For fourth-quarter 2012, AXT Inc of Fremont, CA, USA has reported revenue of $18.9m, down 9% on $20.8m last quarter and 10.8% on $21.2m a year ago. Full-year revenue was $88.4m, down 15% on 2011's $104.1m. Fiscal Q4/2011 Q1/2012 Q2/2012 ...
Tags: AXT, fourth-quarter, revenue
AXT Inc of Fremont, CA, USA, which makes gallium arsenide, indium phosphide and germanium substrate and raw materials, has announced a program authorizing the repurchase of up to $6m of the firm's common stock through 27 February 2014. ...
Tags: AXT, GaAs substrate, InP Germanium
Alta Devices of Sunnyvale, CA, USA has announced reference designs for what it claims are the world’s lightest and highest-energy-density flexible military charging mats. Alta fabricates single-junction gallium arsenide (GaAs) ...
Tags: Alta Devices, military charging mats, Mobile Charging Mats, company news
After recovering strongly from 2009 with growth of 22% in 2010, the gallium arsenide (GaAs) substrate market slowed sharply in 2011, rising just 4% to nearly $360m, due to weak demand in RF circuits (handsets and WLANs) and in ...
For third-quarter 2012, , CA, USA has reported revenue of $20.8m, down 17.5% on $25.2m last quarter and down 26.5% on $28.3m a year ago. Gallium arsenide (GaAs) substrate revenue was $12.9m, down 13% on $14.9m last quarter and 31% on ...