Search Results - "SCHELL, MARTIN"

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  1. 1

    Influence and adjustment of carrier lifetimes in InGaAs/InAlAs photoconductive pulsed terahertz detectors: 6 THz bandwidth and 90dB dynamic range by Dietz, Roman J B, Globisch, Björn, Roehle, Helmut, Stanze, Dennis, Göbel, Thorsten, Schell, Martin

    Published in Optics express (11-08-2014)
    “…We investigate the influence of Beryllium (Be) doping on the performance of photoconductive THz detectors based on molecular beam epitaxy (MBE) of low…”
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    Journal Article
  2. 2

    Optoelectronic frequency-modulated continuous-wave terahertz spectroscopy with 4 THz bandwidth by Liebermeister, Lars, Nellen, Simon, Kohlhaas, Robert B., Lauck, Sebastian, Deumer, Milan, Breuer, Steffen, Schell, Martin, Globisch, Björn

    Published in Nature communications (16-02-2021)
    “…Broadband terahertz spectroscopy enables many promising applications in science and industry alike. However, the complexity of existing terahertz systems has…”
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  3. 3

    Highly efficient passive InP polarization rotator-splitter by Keyvaninia, Shahram, Boerma, Hendrik, Wössner, Markus, Ganzer, Felix, Runge, Patrick, Schell, Martin

    Published in Optics express (02-09-2019)
    “…Monolithically integrated polarization beam splitters (PBSs) are needed to reduce the form-factor and assembly cost of optical coherent receivers. A highly…”
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  4. 4

    Ultra-fast, High-Bandwidth Coherent cw THz Spectrometer for Non-destructive Testing by Liebermeister, Lars, Nellen, Simon, Kohlhaas, Robert, Breuer, Steffen, Schell, Martin, Globisch, Björn

    “…Continuous wave THz (cw THz) systems define the state-of-the-art in terms of spectral resolution in THz spectroscopy. Hitherto, acquisition of broadband…”
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  5. 5

    Fabrication Tolerant Integrated Polarization Rotator Design Using the Jones Calculus by Baier, Moritz, Soares, Francisco M., Gartner, Tom, Moehrle, Martin, Schell, Martin

    Published in Journal of lightwave technology (01-07-2019)
    “…A fabrication tolerant polarization rotator (PR) building block is added to our generic photonic integration technology. Using asymmetric waveguides, we…”
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  6. 6

    Recent Developments in Polymer-Based Photonic Components for Disruptive Capacity Upgrade in Data Centers by de Felipe, David, Kleinert, Moritz, Zawadzki, Crispin, Polatynski, Andrzej, Irmscher, Gelani, Brinker, Walter, Moehrle, Martin, Bach, Heinz-Gunter, Keil, Norbert, Schell, Martin

    Published in Journal of lightwave technology (15-02-2017)
    “…Recently developed photonic components for nextgeneration datacenter systems based on the Heinrich Hertz Institute's PolyBoard integration platform are…”
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  7. 7

    Terahertz quasi time-domain spectroscopy based on telecom technology for 1550 nm by Kohlhaas, Robert B, Rehn, Arno, Nellen, Simon, Koch, Martin, Schell, Martin, Dietz, Roman J B, Balzer, Jan C

    Published in Optics express (29-05-2017)
    “…We present a fiber-coupled terahertz quasi time-domain spectroscopy system driven by a laser with a central wavelength of 1550 nm. By using a commercially…”
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  8. 8

    Novel Photodetector Chip for Polarization Diverse Detection by Keyvaninia, Shahram, Beckerwerth, Tobias, Zhou, Gan, Gruner, Marko, Ganzer, Felix, Ebert, Willi, Mutschall, Sven, Seeger, Angela, Runge, Patrick, Schell, Martin

    Published in Journal of lightwave technology (15-08-2019)
    “…A new photodetector chip for polarization diverse detection is presented. The presented chip allows for smaller footprints and design simplifications by…”
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  9. 9

    Miniaturized continuous-wave terahertz spectrometer with 3.6 THz bandwidth enabled by photonic integration and microelectronics by Nellen, Simon, Schwenson, Lauri, Liebermeister, Lars, Deumer, Milan, Lauck, Sebastian, Schell, Martin, Kohlhaas, Robert B.

    Published in IEEE access (01-01-2024)
    “…Broadband terahertz spectroscopy is a valuable analytical tool in science and a promising technology for industrial non-destructive, non-contact testing, e.g…”
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  10. 10

    Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry by Kohlhaas, Robert B, Liebermeister, Lars, Breuer, Steffen, Amberg, Marcel, Felipe, David de, Nellen, Simon, Schell, Martin, Globisch, Björn

    Published in Sensors (Basel, Switzerland) (04-05-2020)
    “…We present a fiber coupled transceiver head for terahertz (THz) time-domain reflection measurements. The monolithically integrated transceiver chip is based on…”
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  11. 11

    InP-Based Foundry PICs for Optical Interconnects by Soares, Francisco M., Baier, Moritz, Gaertner, Tom, Grote, Norbert, Moehrle, Martin, Beckerwerth, Tobias, Runge, Patrick, Schell, Martin

    Published in Applied sciences (17-04-2019)
    “…This paper describes a fabrication process for realizing Indium-Phosphide-based photonic-integrated circuits (PICs) with a high level of integration to target…”
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  12. 12

    Optoelectronic Heterodyne THz Receiver for 100-300 GHz Communication Links by Deumer, Milan, Stiewe, Oliver, Nellen, Simon, Lauck, Sebastian, Breuer, Steffen, Kohlhaas, Robert B., Schubert, Colja, Elschner, Robert, Freund, Ronald, Schell, Martin

    Published in IEEE access (2024)
    “…Terahertz wireless communications is an increasingly interesting research topic due to the high demand for un-allocated channels and high data rates. Photonic…”
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  13. 13

    Repeatable Passive Fiber Optic Coupling of Single-Mode Waveguides in High-Precision Disposable Photonic Biosensors by Reck, Jakob, von Emden, Laurids, Mihov, Klara, Kresse, Martin, Weigel, Madeleine, Qian, Tianwen, Keuer, Csongor, Winklhofer, Philipp, Amberg, Marcel, de Felipe, David, Zawadzki, Crispin, Kleinert, Moritz, Keil, Norbert, Schell, Martin

    Published in Photonics (01-06-2024)
    “…This research demonstrates a method for the repeatable passive fiber optic coupling of single-mode waveguides with a micron-scale accuracy for high-precision…”
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  14. 14

    Graphene-based electro-absorption modulator integrated in a passive polymer waveguide platform by Kleinert, Moritz, Herziger, Felix, Reinke, Philipp, Zawadzki, Crispin, de Felipe, David, Brinker, Walter, Bach, Heinz-Gunter, Keil, Norbert, Maultzsch, Janina, Schell, Martin

    Published in Optical materials express (01-06-2016)
    “…A graphene-based electro-absorption modulator has been integrated into a passive polymer waveguide platform for the first time. The opto-electronic properties…”
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  15. 15

    Colinguals among bilinguals by SCHELL, MARTIN

    Published in World Englishes (01-02-2008)
    “…Discussions about intranational uses of English tend to follow the predominant theme of international uses, namely communication between people who do not have…”
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  16. 16

    InP-Components for 100 GBaud Optical Data Center Communication by Runge, Patrick, Beckerwerth, Tobias, Troppenz, Ute, Gruner, Marko, Boerma, Hendrik, Möhrle, Martin, Schell, Martin

    Published in Photonics (01-01-2021)
    “…Externally modulated DFB lasers (EML) and vertically illuminated photodetectors are presented. Because of their excellent high-speed behavior and operation…”
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  17. 17

    Polarimetry for Photonic Integrated Circuits by Baier, Moritz, Schoenau, Axel, Soares, Francisco M., Schell, Martin

    Published in Applied sciences (2019)
    “…Photonic integrated circuits (PICs) play a key role in a wide range of applications. Very often, the performance of PICs depends strongly on the state of…”
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    THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions by Dietz, Roman J B, Gerhard, Marina, Stanze, Dennis, Koch, Martin, Sartorius, Bernd, Schell, Martin

    Published in Optics express (19-12-2011)
    “…We present first results on photoconductive THz emitters for 1.55µm excitation. The emitters are based on MBE grown In0.53Ga0.47As/In0.52Al0.48As multilayer…”
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  20. 20

    High-Speed Photodiodes for Power Efficient Data Transmission by Beckerwerth, Tobias, Runge, Patrick, Schell, Martin

    Published in Journal of lightwave technology (01-02-2024)
    “…This paper highlights recent developments in high-speed photodiodes and their role in efficient data transmission. Design considerations and state-of-the-art…”
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