Welcome to the Unterrainer group

The terahertz region of the electromagnetic spectrum is a frontier area for photonics research.

This part of the electromagnetic spectrum has been less well explored and has been called the "terahertz gap" because of the lack of high-power, room-temperature sources and efficient detectors. The generation and detection of radiation in this frequency range is difficult. Scaling and extrapolating known concepts of the microwave or infrared ranges is, in general, not possible. However, solid state quantum devices, which allow the realization of quantum optical concepts, e.g. for lasers and photon emitters, are very promising radiation sources in the THz range.

Our research interests are

Semiconductor quantum structures for novel photonic devices Ultrafast lasers and terahertz time domain spectroscopy Two-dimensional materials and their interaction with light



Latest news:


The team of the photonics institute participated in the Krebsforschungslauf 2018! 


Congratulations to Lukas Mennel for winning the student poster prize at the Graphene Week 2018!


Congratulations to Simone Schuler for winning the best student presentation at the Graphene Week 2018!


Congratulations to Martin Kainz for winning the student poster prize at the International Quantum Cascade Lasers School and Workshop 2018!


Congratulations to Thomas Lurf who graduated to D.I. with his master thesis " Design of hetergeneously integrated QCLs on SOI"