Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Benjamin Döpke"'
Autor:
Martin R. Hofmann, Andreas Klehr, Besher Kani, Jared O. Gwaro, Nils Surkamp, Andreas Stohr, Bernd Sumpf, Jörg Fricke, Carsten Brenner, Yinghui Hu, Benjamin Döpke
Publikováno v:
Advances in Radio Science, Vol 16, Pp 167-175 (2018)
The generation and detection of radiation in the THz frequency range can be achieved with many different electronic and photonic concepts. Among the many different photonic THz systems the most versatile are based on diode lasers. In this paper we de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37be0c4dbd8f83fae253fe7ba68de62d
https://www.adv-radio-sci.net/16/167/2018/
https://www.adv-radio-sci.net/16/167/2018/
Autor:
Benjamin Döpke, Carsten Brenner, Andreas Klehr, Thomas Musch, Christoph Baer, Martin R. Hofmann, Thomas Prziwarka, Andrea Knigge, Kerstin Orend, Nils Surkamp
Publikováno v:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII.
Even though Terahertz Time Domain Spectroscopy (TDS) setups have been available for decades in laboratories worldwide and possible applications have been shown in many research papers, a breakthrough of applications actively used on an industrial sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a679346afbb55a7dbba6f0175fd0d8fd
https://doi.org/10.1117/12.2508396
https://doi.org/10.1117/12.2508396
Autor:
Andrea Knigge, Günther Tränkle, Yinghui Hu, Nils Surkamp, Benjamin Döpke, Carsten Brenner, Andreas Klehr, Martin R. Hofmann
Publikováno v:
2018 First International Workshop on Mobile Terahertz Systems (IWMTS).
Broadband terahertz spectroscopy measurements are commonly recorded with time domain systems that require a mechanical delay stage to obtain sampling of the terahertz transient. The principle limitation in measurement time for such detection schemes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c20dff619e66ada2a112946eb3161047
https://doi.org/10.1109/iwmts.2018.8454698
https://doi.org/10.1109/iwmts.2018.8454698
Autor:
Götz Erbert, Benjamin Döpke, Rouven H. Pilny, Carsten Brenner, Jan C. Balzer, Andreas Klehr, Gunter Trankle, Martin R. Hofmann
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 21:16-23
We investigate passively mode-locked diode lasers with external cavity for ultrashort pulse generation. Our strategy to achieve ultrashort pulses is to generate strongly chirped pulses with a maximized bandwidth and to compress them externally. By ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49e9660c1a3b8d6ddeec2665a9c39f47
https://doi.org/10.1109/jstqe.2015.2418225
https://doi.org/10.1109/jstqe.2015.2418225
Autor:
Jan C. Balzer, Carsten Brenner, Benjamin Döpke, Andreas Klehr, Günther Tränkle, Andrea Knigge, Rouven H. Pilny, Martin R. Hofmann
Publikováno v:
Optics letters. 42(8)
We present a femtosecond laser diode system that is capable of autonomously adjusting itself to compensate for the external dispersion in an arbitrary application. The laser system contains a spatial light modulator inside the cavity which is control
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79ac4794125f0a987eab521ecae8ad24
https://pubmed.ncbi.nlm.nih.gov/28409788
https://pubmed.ncbi.nlm.nih.gov/28409788
Autor:
Carsten Brenner, Maxim Cherkashin, Benjamin Döpke, Nils C. Gerhardt, Widodo D. Putro, Martin R. Hofmann
Publikováno v:
SPIE Proceedings.
It has been shown recently, that varying the excitation sequence could deliver additional benefits for photoacoustic imaging, for instance, bringing additional information on the sample under study, or reducing the total acquisition time. However, fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7649d688d33034d27bc97ec73e750a3a
https://doi.org/10.1117/12.2254577
https://doi.org/10.1117/12.2254577
Autor:
Widodo D. Putro, Benjamin Döpke, Martin R. Hofmann, Carsten Brenner, Maxim Cherkashin, Nils C. Gerhardt
Publikováno v:
Photons Plus Ultrasound: Imaging and Sensing 2017.
Achieving a good signal-to-noise ratio at increased depths remains a challenge, even for photoacoustic imaging, which stimulates the search for possible contrast improvements. Both double-pulse and pulse burst excitation are shown beneficial for incr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6878cb524634abbdf8e4adb0ea4e3ac5
https://doi.org/10.1117/12.2253051
https://doi.org/10.1117/12.2253051
Autor:
Günther Tränkle, Carsten Brenner, Andreas Klehr, Martin R. Hofmann, Andrea Knigge, Benjamin Döpke, Rouven H. Pilny
Publikováno v:
Conference on Lasers and Electro-Optics.
We present an ultrafast edge-emitting diode laser system, which is able to self-adapt the resonator internal phase and amplitude. The best operating conditions for passive, active and hybrid mode-locking are analyzed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67aee01bca6bc021e3e82e136168708d
https://doi.org/10.1364/cleo_at.2017.jth2a.128
https://doi.org/10.1364/cleo_at.2017.jth2a.128
Autor:
Yinghui Hu, Carsten Brenner, Benjamin Döpke, Andrea Knigge, Günther Tränkle, Andreas Klehr, Nils Surkamp, Martin R. Hofmann
Publikováno v:
Electronics Letters. 54:640-641
Asynchronous optical sampling terahertz time-domain spectroscopy using semiconductor laser-based ultra-short pulse sources is demonstrated. A pair of hybridly mode-locked edge-emitting external cavity lasers operating at a wavelength of 830 nm is use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e276380b76899d1ee7897fedc8427cf
https://doi.org/10.1049/el.2018.0521
https://doi.org/10.1049/el.2018.0521
Publikováno v:
Electronics Letters. 51:642-644
A new calibration method for dual-mask liquid crystal spatial light modulators (SLMs) is presented, which can be applied while the SLM is in the setup of a pulse shaper optimised for semiconductor laser sources. An evolutionary algorithm is used to r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd6583e0d431081bcb6b1bebcdfd2868
https://doi.org/10.1049/el.2015.0078
https://doi.org/10.1049/el.2015.0078