T
Theo Tschudi
Researcher at Technische Universität Darmstadt
Publications - 104
Citations - 2434
Theo Tschudi is an academic researcher from Technische Universität Darmstadt. The author has contributed to research in topics: Photorefractive effect & Holography. The author has an hindex of 22, co-authored 104 publications receiving 2360 citations. Previous affiliations of Theo Tschudi include Darmstadt University of Applied Sciences.
Papers
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Journal ArticleDOI
Generation of 5-fs pulses and octave-spanning spectra directly from a Ti:sapphire laser
R. Ell,Uwe Morgner,Franz X. Kärtner,James G. Fujimoto,Erich P. Ippen,Volker Scheuer,G. Angelow,Theo Tschudi,M. J. Lederer,A. Boiko,Barry Luther-Davies +10 more
TL;DR: Spectra extending from 600 to 1200 nm have been generated from a Kerr-lens mode-locked Ti:sapphire laser producing 5-fs pulses, to the authors' knowledge the broadest ever generated directly from a laser oscillator.
Journal ArticleDOI
Semiconductor saturable-absorber mirror assisted Kerr-lens mode-locked Ti:sapphire laser producing pulses in the two-cycle regime.
Dirk Sutter,Günter Steinmeyer,Lukas Gallmann,N. Matuschek,François Morier-Genoud,Ursula Keller,Volker Scheuer,G. Angelow,Theo Tschudi +8 more
TL;DR: An improvement in bandwidth has been made possible by carefully designed spectral shaping of the output coupling, better suppression of the dispersion oscillation of the double-chirped mirrors, and a novel broadband semiconductor saturable-absorber mirror.
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Speckle Reduction in Laser Projection Systems by Diffractive Optical Elements
TL;DR: A new method for eliminating speckles in the far field by using a diffractive optical element is proposed, which can be reduced to a few percent while good beam quality is preserved.
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Generation of doughnut laser beams by use of a liquid-crystal cell with a conversion efficiency near 100%.
Djenan Ganic,Xiaosong Gan,Min Gu,Mathias Hain,Somakanthan Somalingam,Svetomir Stankovic,Theo Tschudi +6 more
TL;DR: It is demonstrated that the liquid-crystal cell exhibits an efficiency in energy conversion near 100%, making the device appealing for laser trapping methods used in single-molecule biomechanics and for optical guiding of cold atoms.
Journal ArticleDOI
Generation of 20-fs pulses by a prismless Cr(4+):YAG laser.
Daniel J. Ripin,C. Chudoba,Juliet T. Gopinath,James G. Fujimoto,Erich P. Ippen,Uwe Morgner,Franz X. Kärtner,Volker Scheuer,G. Angelow,Theo Tschudi +9 more
TL;DR: These pulses, which are believed to be the shortest generated to date from a Cr(4+):YAG laser, are only four optical cycles within the FWHM intensity width.