Lasers Research update Terahertz laser leaves the lab New design reduces electron “leakage” in quantum cascade lasers and could bring terahertz imaging into wider use Read article: Terahertz laser leaves the lab
Devices and structures Research update Graphene-based memristor is ideal for artificial neural networks, say researchers New device offers 16 levels for synaptic connections Read article: Graphene-based memristor is ideal for artificial neural networks, say researchers
Imaging Research update Ultrafast camera breaks 3D speed record Stereo-polarimetric compressed ultrafast photography device takes up to 100 billion frames per second in 3D Read article: Ultrafast camera breaks 3D speed record
Biomedical devices Research update 3D printed fibres make efficient respiratory sensors Transparent, micron-sized conductive fibres can be integrated into wearable devices that measure the amount of moisture that leaks through a face mask Read article: 3D printed fibres make efficient respiratory sensors
Devices and structures Research update Triplet control prevents ‘lasing death’ in perovskite lasers Suppressing long-lived triplet excitons enables devices made from quasi-2D organic–inorganic material to continue lasing for over an hour Read article: Triplet control prevents ‘lasing death’ in perovskite lasers
Devices and structures Research update Thermal diodes bridge the gap One-way water-vapour device could cool down aircraft components and computer chips Read article: Thermal diodes bridge the gap
Magnetism and spin Research update Spin valve uses coupled quantum dots and tiny magnetic fields Electron spin current is generated without the need for large external magnetic fields Read article: Spin valve uses coupled quantum dots and tiny magnetic fields
Nanophotonics Research update Metasurface laser produces super-twisted light New device could act as an “optical spanner” or wrench to control physical objects Read article: Metasurface laser produces super-twisted light
Devices and structures Research update Nano-optomechanical resonator detects low-frequency bacteria vibrations Spectrometry technique offers a new way to classify biological particles Read article: Nano-optomechanical resonator detects low-frequency bacteria vibrations
Optical components Research update Optical phased array steers blue light New device could significantly reduce the size of the light projection components employed in many emerging applications Read article: Optical phased array steers blue light