Imperial College London

Professor Stepan Lucyszyn, FIEEE

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Professor of Millimetre-wave Systems



+44 (0)20 7594 6167s.lucyszyn Website CV




Ms Susan Brace +44 (0)20 7594 6215




602Electrical EngineeringSouth Kensington Campus






BibTex format

author = {Hanham, SM and Ahmad, MM and Lucyszyn, S and klein, N},
doi = {10.1109/TTHZ.2016.2634547},
journal = {IEEE Transactions on Terahertz Science and Technology},
pages = {199--208},
title = {LED-switchable High-Q Packaged THz Microbeam Resonators},
url = {},
volume = {7},
year = {2017}

RIS format (EndNote, RefMan)

AB - This paper describes the design, fabrication and experimental characterization of photonic crystal microbeam cavity resonators for the terahertz band implemented using suspended dielectric rectangular waveguide (DRW) in high resistivity silicon. Electrical quality factors of up to 11,900, combined with small modal volumes of 0.28 mm3 and 0.077 mm3, are demonstrated for devices operating at 100 and 200 GHz, respectively. The devices are found to be extremely light-sensitive, opening up new opportunities for light-controlled switching devices at terahertz frequencies. It is shown that the quality factor of the resonator can be tuned and the resonance extinguished through photo-illumination with an infrared light-emitting diode (IR LED). Additionally, the questions of thermal tunability and thermal stability of the resonators are examined. The demonstrated resonators are inherently suited to integration with DRW and by silicon bulk micromachining represent an attractive approach for realizing microphotonic integrated circuits for terahertz systems-on-a-substrate.
AU - Hanham,SM
AU - Ahmad,MM
AU - Lucyszyn,S
AU - klein,N
DO - 10.1109/TTHZ.2016.2634547
EP - 208
PY - 2017///
SN - 2156-342X
SP - 199
TI - LED-switchable High-Q Packaged THz Microbeam Resonators
T2 - IEEE Transactions on Terahertz Science and Technology
UR -
UR -
VL - 7
ER -