Research News 2018

FBH research: 09.05.2018

Optimized electron blocking layer for UV-B light emitting diodes

(In)AlGaN-based UV-B LEDs are promising candidates to replace established UV light sources in various applications. However, high defect densities in these materials, among others, limit their efficiency. The FBH has therefore studied the influence of EBL doping and EBL material composition on the emission power of 310 nm LEDs.

FBH research: 24.04.2018

GaN HEMT-based THz detectors

The FBH develops highly sensitive, fast-response and broadband THz detectors for CW and pulsed operation. Since fast THz cameras with high sensitivity are mandatory for many industrial applications, FBH is also working on focal plane arrays of THz detectors to transfer the excellent single detector performance to a THz camera.

FBH research: 11.04.2018

γ-irradiation tests of volume-holographic Bragg gratings

Spaceborne quantum optical sensors for high-precision measurements rely on compact and robust narrow linewidth laser systems. The radiation hardness of the VHBGs which enhance the frequency stability of the employed laser modules was shown by FBH for typical low-earth-orbit conditions.