Imperial College London

Dr Helen Brindley

Faculty of Natural SciencesDepartment of Physics

Reader in Earth Observation



+44 (0)20 7594 7673h.brindley




717Huxley BuildingSouth Kensington Campus






BibTex format

author = {Hu, F and Sun, J and Brindley, HE and Liang, X and Lucyszyn, S},
doi = {10.1007/s10762-014-0136-2},
journal = {Journal of Infrared, Millimeter, and Terahertz Waves},
pages = {474--495},
title = {Systems Analysis for Thermal Infrared 'THz Torch' Applications},
url = {},
volume = {36},
year = {2015}

RIS format (EndNote, RefMan)

AB - The ‘THz Torch’ concept was recently introduced by the authors for providing secure wireless communications over short distances within the thermal infrared (10-100 THz). Unlike conventional systems, thermal infrared can exploit front-end thermodynamics with engineered blackbody radiation. For the first time, a detailed power link budget analysis is given for this new form of wireless link. The mathematical modeling of a short end-to-end link is provided, which integrates thermodynamics into conventional signal and noise power analysis. As expected from the Friis formula for noise, it is found that the noise contribution from the pyroelectric detector dominates intrinsic noise. From output signal and noise voltage measurements, experimental values for signal-to-noise ratio (SNR) are obtained and compared with calculated predictions. As with conventional communications systems, it is shown for the first time that the measured SNR and measured bit error rate found with this thermodynamics-based system resembles classical empirical models. Our system analysis can serve as an invaluable tool for the development of thermal infrared systems, accurately characterizing each individual channel and, thus, enables the performance of multi-channel ‘THz Torch’ systems to be optimized.
AU - Hu,F
AU - Sun,J
AU - Brindley,HE
AU - Liang,X
AU - Lucyszyn,S
DO - 10.1007/s10762-014-0136-2
EP - 495
PY - 2015///
SN - 1866-6892
SP - 474
TI - Systems Analysis for Thermal Infrared 'THz Torch' Applications
T2 - Journal of Infrared, Millimeter, and Terahertz Waves
UR -
UR -
UR -
VL - 36
ER -