Zobrazeno 1 - 10
of 1 186
pro vyhledávání: '"M. Heidt"'
Autor:
Christian M. Heidt, Jonas R. Bohn, Róbert Stollmayer, Oyunbileg von Stackelberg, Stephan Rheinheimer, Farastuk Bozorgmehr, Karsten Senghas, Kai Schlamp, Oliver Weinheimer, Frederik L. Giesel, Hans-Ulrich Kauczor, Claus Peter Heußel, Gudula Heußel
Publikováno v:
Insights into Imaging, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Objective Investigate the feasibility of detecting early treatment-induced tumor tissue changes in patients with advanced lung adenocarcinoma using diffusion-weighted MRI-derived radiomics features. Methods This prospective observational stu
Externí odkaz:
https://doaj.org/article/19f89bb48e0448caaf739e1bfb1df82f
Publikováno v:
APL Photonics, Vol 8, Iss 11, Pp 110802-110802-8 (2023)
Optical frequency combs (OFCs) have become increasingly pervasive in recent years, with their advantageous frequency coherence properties enabling significant developments in numerous fields, such as optical communications, spectroscopy, and microwav
Externí odkaz:
https://doaj.org/article/4700d3cdf9de40b799835d00922fa9dc
Autor:
Ronit Sohanpal, Haonan Ren, Li Shen, Callum Deakin, Alexander M. Heidt, Thomas W. Hawkins, John Ballato, Ursula J. Gibson, Anna C. Peacock, Zhixin Liu
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Silicon core fibre is a highly nonlinear waveguide that combines the benefits of both fibre and planar waveguide systems. Here, the authors demonstrate frequency comb generation using a fully-fibre integrated silicon core fibre as a nonlinear mixer.
Externí odkaz:
https://doaj.org/article/4b47e24fe961494f97028990522dc47a
Publikováno v:
2023 Optical Fiber Communications Conference and Exhibition (OFC).
We design and optimize a parametric frequency comb generator using all polarization- maintaining components, highly-doped PM fiber and PM highly-nonlinear fibers, obtaining 500 tones over 100nm with >-5dBm per tone and less than 40kHz linewidth.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::167c43b70727926cba35e3b7acde41f2
https://doi.org/10.23919/ofc49934.2023.10116996
https://doi.org/10.23919/ofc49934.2023.10116996
Autor:
Thibaut Sylvestre, Etienne Genier, Amar N. Ghosh, Patrick Bowen, Goery Genty, Johann Troles, Arnaud Mussot, Anna C. Peacock, Mariusz Klimczak, Alexander M. Heidt, John C. Travers, Ole Bang, John M. Dudley
Publikováno v:
SPIE Photonics Europe
SPIE Photonics Europe, Apr 2022, Strasbourg, France
SPIE Photonics Europe, Apr 2022, Strasbourg, France
International audience; Fiber-based supercontinuum (SC) generation has been a subject of intense interest over the last decade, with a significant impact on both basic science and industry. New uses for SC fiber sources are constantly emerging due to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bea9062c9d30d439655093e0c0e45a4f
https://hal.science/hal-03831646
https://hal.science/hal-03831646
Autor:
Alexander M. Heidt, Dirk-Mathys Spangenberg, Anupamaa Rampur, Alexander Hartung, Hartmut Bartelt
Publikováno v:
The Supercontinuum Laser Source ISBN: 9783031061967
Ultrafast and low-noise supercontinuum (SC) sources based on all-normal dispersion (ANDi) fibers are emerging as key-enabling technology for new applications in spectroscopy, microscopy, and ultrafast photonics. In this chapter we review the fundamen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::757d47a73b48e53fc83df5b3f56a5e20
https://doi.org/10.1007/978-3-031-06197-4_6
https://doi.org/10.1007/978-3-031-06197-4_6
The recent development of fiber supercontinuum (SC) sources with ultra-low noise levels has been instrumental in advancing the state-of-the-art in a wide range of research topics. However, simultaneously satisfying the application demands of maximizi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31e6e29f9f95dbfa82050319f38a3c61
Publikováno v:
Optica Advanced Photonics Congress 2022.
By cascading soliton compression in an anomalous dispersion fiber and optical wave-breaking in a normal dispersion fiber, we demonstrate a coherent ultra-low noise fiber SC source covering the 930 - 2130 nm range.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92152a2963d8024ac99c78ef862b70b1
https://doi.org/10.1364/sof.2022.sow5g.2
https://doi.org/10.1364/sof.2022.sow5g.2
Autor:
Pieter H. Neethling, Ruan Viljoen, Alexander M. Heidt, Dirk Spangenberg, Thomas Feurer, Erich G. Rohwer
Publikováno v:
Journal of the European Optical Society-Rapid Publications. 19:12
Vibrational dephasing times for benzene and carbon disulfide are measured using a custom single-beam Coherent Anti-Stokes Raman Spectroscopy (CARS) setup. A femtosecond oscillator is used to pump a polarization maintaining all normal dispersion photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f2fd02d72e253e727108bdd094e77c4
https://doi.org/10.1051/jeos/2023008
https://doi.org/10.1051/jeos/2023008
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 2, Pp 552-560 (2012)
We study numerical solutions of the generalized nonlinear Schrödinger equation (GNLSE), focusing on the advantage of integrating the nonlinear part of the equation in the frequency domain (FD), rather than in the time domain (TD), when simulating s
Externí odkaz:
https://doaj.org/article/c7c30f453df94ef59a1d376c7ff569f8