Back to University of Twente portal
Research
Our current research subjects are:
Active Photonic Devices
(Prof. Markus Pollnau and Dr. Kerstin Wörhoff)
We work on on-chip integrated amplifiers and lasers based on dielectric materials such as amorphous aluminum oxide [Al2O3], crystalline potassium yttrium double tungstate [KY(WO4)2], and polymers, doped with rare-earth ions such as Nd (~850 nm and ~1060 nm), Yb (~1025 nm), Er (~1550 nm), and Tm/Ho (~1950 nm). This approach involves thin-film deposition by reactive co-sputtering, liquid-phase epitaxy, and spin coating, micro-/nano-structuring by reactive ion etching, laser interference lithography, and focused ion beam etching, demonstration of optical gain, development of on-chip resonant cavities, combination of optically active and passive functions on a single chip, and applications as integrated devices in optical sensing and communication.
Research highlights:
Ø |
Ø |
Photonics Integration Technology
(vacant, managed by current staff members)
Text under construction.
Research highlights:
Ø |
Several projects started recently |
Sensors and Photonic Crystals
(Dr. Hugo Hoekstra and Dr. René Ridder)
Text under construction.
Research highlights:
Ø |
Detection of DNA molecules with integrated optical waveguides |