70-THz bandwidth from an Au-implanted Ge photoconductive emitter pumped by a mode-locked Er:fibre laser

2020 ◽  
Author(s):  
Abhishek Singh ◽  
Alexej Pashkin ◽  
Stephan Winnerl ◽  
Malte Welsch ◽  
Cornelius Beckh ◽  
...  
Keyword(s):  
Photoconductive Emitter

Tunable CW-THz system with a log-periodic photoconductive emitter

2004 ◽  
Vol 48 (10-11) ◽  
pp. 2041-2045 ◽  
Author(s):  
Rajind Mendis ◽  
Cezary Sydlo ◽  
Jochen Sigmund ◽  
Michael Feiginov ◽  
Peter Meissner ◽  
...  
Keyword(s):  
Photoconductive Emitter

Gapless Broadband Terahertz Emission from a Germanium Photoconductive Emitter

ACS Photonics ◽  
2018 ◽  
Vol 5 (7) ◽  
pp. 2718-2723 ◽  
Author(s):  
A. Singh ◽  
A. Pashkin ◽  
S. Winnerl ◽  
M. Helm ◽  
H. Schneider
Keyword(s):  
Terahertz Emission ◽  
Photoconductive Emitter ◽  
Broadband Terahertz

A Terahertz s-SNOM tip with integrated photoconductive emitter switch evaluated on an AFM-system platform

2021 ◽  
Author(s):  
S. Schaffer ◽  
Y. Loth ◽  
M. Nagel ◽  
S. Sawallich ◽  
A. Wigger ◽  
...  
Keyword(s):  
Photoconductive Emitter

Filling the 5-10 THz gap using Ge-based photoconductive emitter

2019 ◽  
Author(s):  
Abhishek Singh ◽  
Alexej Pashkin ◽  
Stephan Winnerl ◽  
Manfred Helm ◽  
Harald Schneider
Keyword(s):  
Photoconductive Emitter

scholarly journals Diffraction-limited ultrabroadband terahertz spectroscopy

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
M. Baillergeau ◽  
K. Maussang ◽  
T. Nirrengarten ◽  
J. Palomo ◽  
L. H. Li ◽  
...  
Keyword(s):  
Electric Fields ◽  
Dynamic Range ◽  
Terahertz Spectroscopy ◽  
Thz Spectroscopy ◽  
Thz Radiation ◽  
Large Area ◽  
Broadband Radiation ◽  
Strong Focusing ◽  
Spectroscopy System ◽  
Photoconductive Emitter

Abstract Diffraction is the ultimate limit at which details of objects can be resolved in conventional optical spectroscopy and imaging systems. In the THz spectral range, spectroscopy systems increasingly rely on ultra-broadband radiation (extending over more 5 octaves) making a great challenge to reach resolution limited by diffraction. Here, we propose an original easy-to-implement wavefront manipulation concept to achieve ultrabroadband THz spectroscopy system with diffraction-limited resolution. Applying this concept to a large-area photoconductive emitter, we demonstrate diffraction-limited ultra-broadband spectroscopy system up to 14.5 THz with a dynamic range of 103. The strong focusing of ultrabroadband THz radiation provided by our approach is essential for investigating single micrometer-scale objects such as graphene flakes or living cells and besides for achieving intense ultra-broadband THz electric fields.

Tunable CW-THz system with a log-periodic photoconductive emitter

2004 ◽  
Author(s):  
P. Mendis ◽  
C. Sydlo ◽  
J. Sigmund ◽  
M. Feiginov ◽  
P. Meissner ◽  
...  
Keyword(s):  
Photoconductive Emitter

scholarly journals High-field THz pulses from GaAs photoconductive emitter for non-linear THz studies

2021 ◽  
Author(s):  
Abhishek Singh ◽  
Jiang Li ◽  
Alexej Pashkin ◽  
Rakesh Rana ◽  
Stephan Winnerl ◽  
...  
Keyword(s):  
High Field ◽  
Non Linear ◽  
Photoconductive Emitter
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