Laser transitions under resonant optical pumping of donor centres in Si:P

Stimulated THz emission from resonant intra-center optical pumped Si:P and Si:Bi

Stimulated THz emission from Si:P and Si: Bi under resonant intra-centre optical pumping

The emission spectra of optically pumped Si-based THz lasers

Si-based shallow donor far-infrared lasers

RF mismatch of THz switching MQW structures.

The p-Ge THz laser: properties under pulsed and mode locked operation.

The optical properties of the p-Ge THz laser with mesh outcoupler.

Frequency dependent properties of the mode locked p-Ge THz laser.

The pulsed and mode locked p-Ge THz laser: wavelength dependent properties.

Gain of the mode locked p-Ge laser in the low field region

The optical output of the mode locked p-Ge hot hole laser

Technical aspects of the mode locked p-Ge hot hole laser

The p-Ge THz laser in low B-field: properties under pulsed and mode locked operation

Wavelength dependent properties of the pulsed and mode locked p-Ge THz laser

Active modelocking of a p-Ge hot hole laser

Realisation of active mode locking of the p-Ge hot hole laser (invited keynote paper)

Population inversion of Landau levels in the valence band of Silicon in crossed electric and magnetic fields

Active mode-locking of a -Ge hot hole laser

Active mode locking of a p-Ge hot hole laser