
Dr Willem Jellema
SRON and Delft University of Technology
Senior instrument scientist
Equipment:
THz-TDS
THz CW swept spextroscopy
THz VNA
THz FMCW
KID optical and THz detector arrays
THz FTS
NIR swept laser spectroscopy
Visual and NIR imaging and polarimetry
SH wavefront sensing NIR
Optical laser interferometry
E-beam lithography
(D)RIE micomachining
(PÉ)CVD processing
etc
Scientific focus and expertise:
Advanced optical instrumentation
Long-wave diffractive optics
Electromagnetic modelling
Optical design and simulation
Nanofabrication
Straylight analysis
Optical characterisation
Materials class:
Dielectrics
Silicon (SiO2/Si/SiN)
Thin metal films
Superconducting films
Metasurfaces (optical and mechanical)
Application:
Advanced optical instrumentation
Space optics
Commercial spin-off
Market Sector:
Non-destructive testing (process industry)
Optical diagnostics (various)
Communication (telecom)