THz emission spectroscopy reveals optical response of GaInN/GaN multiple quantum wells: Towards nano-seismology of wide bandgap quantum devices

An international team of researchers came closer to unraveling the complicated optical response of wide-bandgap semiconductor multiple quantum wells and how atomic-scale lattice vibration can generate free space terahertz emission. Their work provides a significant push towards the application of laser terahertz emission microscopes to nano-seismology of wide-bandgap quantum devices.