Stimulated emission between impurity levels in silicon is a promising source of terahertz laser radiation.

Stimulated emission between impurity levels in silicon is a promising source of terahertz laser radiation.
The 2012 Fall Meeting of the Materials Research Society (MRS) took place in Boston, Massachusetts, USA, from November 25 to November 30.
Nano-photonics expert Shawn Yu-Lin has been selected as a fellow of the American Association for the Advancement of Science.
Most downloaded papers from the physica status, including as the ‘pss classic’ on amorphous germanium by Jan Tauc from 1966 and much more.
Fluorescent carbon dots can be made by plasma pyrolysis and used as printer ink.
Professor Ozin looks back at the predictions for the field of nanochemistry he made 20 years ago; where has nanotechnology gone since?
Computational methods for the modeling and simulation of the dynamic response and behavior of particles, materials and structural systems have had a profound influence on science, engineering and technology. Complex science and engineering applications dealing...
New work looks at recent progress in STM and DFT studies on the electronic structure of reduced rutile titanium dioxide.
Optical communication technology, like diode lasers used in optical storage devices, is vital to the optoelectronics industry. Since the first edition, Diode Lasers and Photonic Integrated Circuits presents up-to-date information on optical communication...
The main properties that make carbon nanotubes (CNTs) a promising technology for many future applications are: extremely high strength, low mass density, linear elastic behavior, almost perfect geometrical structure, and nanometer scale structure. Also, CNTs...