Optical Spectroscopy of Individual Impurities in Group-III Nitrides

Focus: 
Metrological Instrumentation

Among the most important components for quantum information technology as well as for quantum metrology are single photon sources. If the emission of individual photons can be precisely controlled, i.e. photons are emitted precisely at a given time and rate, with negligible probability of unwanted two-photon events, quantum cryptography systems are much less prone to be eavesdropped. Moreover, light intensity measurements can be traced to quantum standards using such sources. In order to realize efficient single-photon sources we aim to use wide-gap semiconductors combined with localized emission sources. Materials development for these sources shall be accompanied by both spectroscopic and quantum optical characterization.

Mentor/s: 
Hangleiter
Institution: 
TU Braunschweig
Status: 
completed
Ph.D. student: 
Mishra