Prof Michael Johnston: Publications

Intense terahertz generation based on the photo-dember effect

Optics InfoBase Conference Papers (2010)

Authors:

G Klatt, F Hilser, W Chao, R Gebs, A Bartels, K Huska, U Lemmer, G Bastian, MB Johnston, M Fischer, J Faist, T Dekorsy

Abstract:

We demonstrate a new scheme for generating THz radiation based on the photo-Dember effect in lateral geometry. By micro-structuring a semiconductor surface we achieve strongly enhanced THz emission comparable to high-efficiency externally biased photoconductive emitters. © 2010 Optical Society of America.

Terahertz radiation from multiplexed photo-dember currents

Optics Infobase Conference Papers (2010)

Authors:

G Klatt, F Hilser, W Qiao, R Gebs, A Bartels, K Huska, U Lemmer, G Bastian, MB Johnston, M Fischer, J Faist, T Dekorsy

Abstract:

We investigate a novel method to generate intense THz radiation by multiplexing coherent photo-Dember currents in a lateral geometry. These THz emitters are passive devices with a peak frequency at about 1.5 THz. © OSA / UP 2010.

Dynamic terahertz polarization in single-walled carbon nanotubes

PHYSICAL REVIEW B 82:8 (2010) ARTN 085441

Authors:

XL Xu, P Parkinson, K-C Chuang, MB Johnston, RJ Nicholas, LM Herz

Role of Ultrafast Torsional Relaxation in the Emission from Polythiophene Aggregates

JOURNAL OF PHYSICAL CHEMISTRY LETTERS 1:19 (2010) 2788-2792

Authors:

Patrick Parkinson, Christian Mueller, Natalie Stingelin, Michael B Johnston, Laura M Herz

Terahertz radiation from multiplexed photo-Dember currents

Optica Publishing Group (2010) tub5

Authors:

G Klatt, F Hilser, W Qiao, R Gebs, A Bartels, K Huska, U Lemmer, G Bastian, MB Johnston, M Fischer, J Faist, T Dekorsy

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