Jul 19 – 21, 2017
DESY, Zeuthen
Europe/Berlin timezone

SP7: Measurement of Coherent THz Radiation using On-Chip Spectrometer

Jul 20, 2017, 3:18 PM
3m
SR3 (DESY, Zeuthen)

SR3

DESY, Zeuthen

Platanenallee 6 15738 Zeuthen Germany
Speedposter_Beam Diagnostics Speed-Posterpresentation: Beam Diagnostics

Speaker

Dr Niels Neumann (TU Dresden, Chair for RF and Photonics Engineering)

Description

A novel on-chip spectrometer based on arrays of Schottky diodes has been developed. Showing promising results in a first experiment at TELBE (operation at room temperature, excellent signal-to-noise ratio up to MHz repetition rates, sufficient spectral filtering), optimized versions have been developed aiming at better frequency resolution and lower crosstalk between the frequency resolved outputs. All elements exhibit a similar linear behavior which is favorable for an easy evaluation of the spectrally resolved data. Charge-dependent spectra have been recorded. The output of the spectrometer chip follows the general spectral shape measured with traditional time-domain spectroscopy even without proper calibration.

Primary author

Dr Niels Neumann (TU Dresden, Chair for RF and Photonics Engineering)

Co-authors

Prof. Dirk Plettemeier (TU Dresden, Chair for RF and Photonics Engineering) Mr Martin Laabs (TU Dresden, Chair for RF and Photonics Engineering) Dr Michael Gensch (HZDR) Dr Sergey Kovalev (HZDR)

Presentation materials