Ultraviolet light to squeeze in the data
Short-wavelength light will increase the capacity of devices like CDs and DVDs
Optical clocks look up
Visible radiation from metal ions is used to create the word's most accurate clock
Read article: Elastic laser spans the spectrum
Elastic laser spans the spectrum
Fibre optics could benefit from a stretchy laser that changes colour
Read article: Laser jocks reach the big time
Laser jocks reach the big time
Optoelectronics is flourishing in Scotland with new firms spinning off from local universities every month. Valerie Jamieson finds out why it is boom time for the region
Success for Irish physicist
John Hegarty outlines his plans for physics at Trinity
Beating the femtosecond limit
Ultrashort laser pulses could probe processes that occur almost instantaneously
Heat leaves atom clusters cold
Clumps of sodium atoms buck the thermodynamic trend
Read article: Silicon lasers start to take shape
Silicon lasers start to take shape
Devices made from silicon dominate the microelectronics industry, so silicon should be the material of choice for anyone designing new electronic devices that will be integrated with microelectronic c...
First light on silicon laser
The internal energy levels of bulk silicon – in particular its ‘indirect bandgap’ – makes it emit light very inefficiently. Existing lasers are therefore based on ‘direct...
Nobel prize goes to semiconductor pioneers
Kroemer and Alferov share the prize for their work on semiconductor heterostructures – devices that contain thin layers of different semiconductors, usually based on gallium arsenide, stacked on...
