Search Results - "Tünnermann, Andreas"

5D hyperspectral imaging: fast and accurate measurement of surface shape and spectral characteristics using structured light by Heist, Stefan, Zhang, Chen, Reichwald, Karl, Kühmstedt, Peter, Notni, Gunther, Tünnermann, Andreas

“…Measuring the shape (coordinates x, y, z ) and spectral characteristics (wavelength-dependent reflectance R (λi)) of macroscopic objects as a function of time…”
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Ultrafast Spectral Tuning of a Fiber Laser for Time-Encoded Multiplex Coherent Raman Scattering Microscopy by Gottschall, Thomas, Meyer-Zedler, Tobias, Eibl, Matthias, Pfeiffer, Tom, Hakert, Hubertus, Schmitt, Michael, Huber, Robert, Tünnermann, Andreas, Limpert, Jens, Popp, Juergen

“…Coherent Raman scattering microscopy utilizing bioorthogonal tagging approaches like isotope or alkyne labeling allows for a targeted monitoring of spatial…”
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Strain-induced pseudomagnetic field and photonic Landau levels in dielectric structures by Rechtsman, Mikael C., Zeuner, Julia M., Tünnermann, Andreas, Nolte, Stefan, Segev, Mordechai, Szameit, Alexander

“…Magnetic effects at optical frequencies are notoriously weak, so magneto-optical devices must be large to create a sufficient effect. In graphene, it has been…”
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Materials Pushing the Application Limits of Wire Grid Polarizers further into the Deep Ultraviolet Spectral Range by Siefke, Thomas, Kroker, Stefanie, Pfeiffer, Kristin, Puffky, Oliver, Dietrich, Kay, Franta, Daniel, Ohlídal, Ivan, Szeghalmi, Adriana, Kley, Ernst-Bernhard, Tünnermann, Andreas

“…Wire grid polarizers (WGPs), periodic nano‐optical metasurfaces, are convenient polarizing elements for many optical applications. However, they are still…”
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Absorption-limited and phase-matched high harmonic generation in the tight focusing regime by Rothhardt, Jan, Krebs, Manuel, Hädrich, Steffen, Demmler, Stefan, Limpert, Jens, Tünnermann, Andreas

“…High harmonic generation (HHG) at a high repetition rate requires tight focusing of the moderate peak power driving pulses. So far the conversion efficiencies…”
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Time-resolved tomography of ultrafast laser-matter interaction by Bergner, Klaus, Flamm, Daniel, Jenne, Michael, Kumkar, Malte, Tünnermann, Andreas, Nolte, Stefan

“…We demonstrate time-resolved tomography with 200 fs resolution for the three-dimensional analysis of the non-linear dynamics of ultrafast laser-matter…”
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Theoretical considerations on aperiodic sinusoidal fringes in comparison to phase-shifted sinusoidal fringes for high-speed three-dimensional shape measurement by Heist, Stefan, Kühmstedt, Peter, Tünnermann, Andreas, Notni, Gunther

“…The demand for optically reconstructing the three-dimensional (3D) surface shape of moving objects or deformation processes makes the development of high-speed…”
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Perspective on ultrashort pulse laser micromachining by Tünnermann, Andreas, Momma, Carsten, Nolte, Stefan

“…Ultrashort pulse lasers have found widespread applications in precise micromachining. Here, we present our brief perspective on the development of this…”
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Hybrid soliton dynamics in liquid-core fibres by Chemnitz, Mario, Gebhardt, Martin, Gaida, Christian, Stutzki, Fabian, Kobelke, Jens, Limpert, Jens, Tünnermann, Andreas, Schmidt, Markus A.

“…The discovery of optical solitons being understood as temporally and spectrally stationary optical states has enabled numerous innovations among which, most…”
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Impact of photodarkening on the mode instability threshold by Otto, Hans-Jürgen, Modsching, Norbert, Jauregui, Cesar, Limpert, Jens, Tünnermann, Andreas

“…The threshold-like onset of mode instabilities is currently the main limitation for the scaling of the average output power of fiber laser systems with…”
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Atomically Thin Metal–Dielectric Heterostructures by Atomic Layer Deposition by Paul, Pallabi, Schmitt, Paul, Sigurjónsdóttir, Vilborg Vala, Hanemann, Kevin, Felde, Nadja, Schröder, Sven, Otto, Felix, Gruenewald, Marco, Fritz, Torsten, Roddatis, Vladimir, Tünnermann, Andreas, Szeghalmi, Adriana

“…Heterostructures increasingly attracted attention over the past several years to enable various optoelectronic and photonic applications. In this work,…”
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Four-wave-mixing-based optical parametric oscillator delivering energetic, tunable, chirped femtosecond pulses for non-linear biomedical applications by Gottschall, Thomas, Meyer, Tobias, Schmitt, Michael, Popp, Jürgen, Limpert, Jens, Tünnermann, Andreas

“…A novel concept for an optical parametric oscillator based on four-wave mixing (FOPO) in an optical fiber is presented. This setup has the ability of…”
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152 W average power Tm-doped fiber CPA system by Stutzki, Fabian, Gaida, Christian, Gebhardt, Martin, Jansen, Florian, Wienke, Andreas, Zeitner, Uwe, Fuchs, Frank, Jauregui, Cesar, Wandt, Dieter, Kracht, Dietmar, Limpert, Jens, Tünnermann, Andreas

“…A high-power thulium (Tm)-doped fiber chirped-pulse amplification system emitting a record compressed average output power of 152 W and 4 MW peak power is…”
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High-speed three-dimensional shape measurement using GOBO projection by Heist, Stefan, Lutzke, Peter, Schmidt, Ingo, Dietrich, Patrick, Kühmstedt, Peter, Tünnermann, Andreas, Notni, Gunther

“…A projector which uses a rotating slide structure to project aperiodic sinusoidal fringe patterns at high frame rates and with high radiant flux is introduced…”
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Compact surface Fano states embedded in the continuum of waveguide arrays by Weimann, Steffen, Xu, Yi, Keil, Robert, Miroshnichenko, Andrey E, Tünnermann, Andreas, Nolte, Stefan, Sukhorukov, Andrey A, Szameit, Alexander, Kivshar, Yuri S

“…We describe theoretically and observe experimentally the formation of a surface state in a semi-infinite waveguide array with a side-coupled waveguide,…”
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GOBO projection for 3D measurements at highest frame rates: a performance analysis by Heist, Stefan, Dietrich, Patrick, Landmann, Martin, Kühmstedt, Peter, Notni, Gunther, Tünnermann, Andreas

“…Aperiodic sinusoidal patterns that are cast by a GOBO (GOes Before Optics) projector are a powerful tool for optically measuring the surface topography of…”
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Chiral Metamaterial Composed of Three-Dimensional Plasmonic Nanostructures by Helgert, Christian, Pshenay-Severin, Ekaterina, Falkner, Matthias, Menzel, Christoph, Rockstuhl, Carsten, Kley, Ernst-Bernhard, Tünnermann, Andreas, Lederer, Falk, Pertsch, Thomas

“…We introduce a top-down fabricated metamaterial composed of three-dimensional, chiral, plasmonic nanostructures for visible and near-infrared wavelengths…”
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High photon flux table-top coherent extreme-ultraviolet source by Hädrich, Steffen, Klenke, Arno, Rothhardt, Jan, Krebs, Manuel, Hoffmann, Armin, Pronin, Oleg, Pervak, Vladimir, Limpert, Jens, Tünnermann, Andreas

“…High photon flux with up to 10 12 photons in the 25–40 eV range has been achieved in a new table-top coherent extreme ultraviolet (EUV) source based on…”
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Enhancing precision in fs-laser material processing by simultaneous spatial and temporal focusing by Kammel, Robert, Ackermann, Roland, Thomas, Jens, Götte, Jörg, Skupin, Stefan, Tünnermann, Andreas, Nolte, Stefan

“…In recent years, femtosecond (fs)-lasers have evolved into a versatile tool for high precision micromachining of transparent materials because nonlinear…”
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Watt-scale super-octave mid-infrared intrapulse difference frequency generation by Gaida, Christian, Gebhardt, Martin, Heuermann, Tobias, Stutzki, Fabian, Jauregui, Cesar, Antonio-Lopez, Jose, Schülzgen, Axel, Amezcua-Correa, Rodrigo, Tünnermann, Andreas, Pupeza, Ioachim, Limpert, Jens

“…The development of high-power, broadband sources of coherent mid-infrared radiation is currently the subject of intense research that is driven by a…”
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