Siegel der Universität

Universität zu Köln
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Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

Publications

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jobs of the SubMillimeter and Terahertz Receiver Group

2017

2016

2015

  • Impacts of pure shocks in the BHR71 bipolar outflow
    Gusdorf, A. and Riquelme, D. and Anderl, S. and Eislöffel, J. and Codella, C. and Gómez-Ruiz, A. I. and Graf, U. U. and Kristensen, L. E. and Leurini, S. and Parise, B. and Requena-Torres, M. A. and Ricken, O. and Güsten, R.
    Astron. Astrophys. 575, Art. No. A98 (2015)
  • 4.7-THz Superconducting Hot Electron Bolometer Waveguide Mixer
    D. Büchel, P. Pütz, K. Jacobs, M. Schultz, U. U. Graf, C. Risacher, H. Richter, O. Ricken, H.-W. Hübers, R. Güsten, C. E. Honingh, J. Stutzki
    IEEE Trans. Terahertz Sci. Technol. 5, 207–215 (2015)
  • Sulphur-bearing molecules in diffuse molecular clouds: new results from SOFIA/GREAT and the IRAM 30 m telescope
    D. A. Neufeld, B. Godard, M. Gerin, G. Pineau des Forêts, C. Bernier, E. Falgarone, U. U. Graf, R. Güsten, E. Herbst, P. Lesaffre , P. Schilke, P. Sonnentrucker, and H. Wiesemeyer
    Astron. Astrophys. 577, Art. No. 49 (2015)
  • Terahertz Heterodyne Array Receivers for Astronomy
    Graf, U. U. and Honingh, C. E. and Jacobs, K. and Stutzki, J.
    Journal of Infrared, Millimeter, and Terahertz Waves 36, 896–921 (2015)
  • Waveguide embedding of a double metal 1.9THz QCL into a split block with diagonal horn antenna
    Justen, M. and Otani, K. and Tur\vcinková, D. and Castellano, F. and Graf, U. U. and Faist, J.
    Proceedings of the 26th International Symposium on Space Terahertz Technology (ISSTT), T2-5 (2015)
  • upGREAT: Status of the 1.9 to 2.5 THz Heterodyne Array for SOFIA
    Risacher, C. and Reyes, N. and Güsten, R. and Stutzki, J. and Hübers, H.--W. and Pütz, P. and Bell, A. and Büchel, D. and Camara, I. and Castenholz, R. and Choi, M. and Graf, U. and Heyminck, S. and Honingh, C. and Jacobs, K. and Justen, M. and Klein, B. and Klein, T. and Leinz, C. and Richter, H. and Ricken, O. and Semenov, A. and Wunsch, A.
    Proceedings of the 26th International Symposium on Space Terahertz Technology (ISSTT), M3-1 (2015)

2014

  • Optics and cryogenics for the 1.1 THz multi--pixel heterodyne receiver for APEX
    Hurtado, N. and Graf, U. U. and Adams, H. and Honingh, C. E. and Jacobs, K. and Pütz, P. and Güsten, R. and Stutzki, J.
    Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series 9153, 27 (2014)
  • The upGREAT heterodyne array receivers for far Infrared astronomy
    Risacher, C. and Güsten, R. and Stutzki, J. and Hübers, H.-W. and Pütz, P. and Bell, A. and Buchel, D. and Camara, I. and Castenholz, R. and Choi, M. and Graf, U. and Heyminck, S. and Honingh, C. and Jacobs, K. and Justen, M. and Klein, B. and Klein, T. and Leinz, C. and Reyes, N. and Richter, H. and Ricken, O. and Semenov, A. and Wunsch, A.
    39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 1,2 (2014)

2013

2012

  • GREAT: the SOFIA high-frequency heterodyne instrument
    Heyminck, S. and Graf, U. U. and Güsten, R. and Stutzki, J. and Hübers, H. W. and Hartogh, P.
    Astron. Astrophys. 542, Art. No. L1 (2012)
  • GREAT/SOFIA atmospheric calibration
    Guan, X. and Stutzki, J. and Graf, U. U. and Güsten, R. and Okada, Y. and Requena-Torres, M. A. and Simon, R. and Wiesemeyer, H.
    Astron. Astrophys. 542, Art. No. L4 (2012)
  • SOFIA observations of S106: dynamics of the warm gas
    Simon, R. and Schneider, N. and Stutzki, J. and Güsten, R. and Graf, U. U. and Hartogh, P. and Guan, X. and Staguhn, J. G. and Benford, D. J.
    Astron. Astrophys. 542, Art. No. L12 (2012)
  • GREAT [C II] and CO observations of the BD+40o4124 region
    Sandell, G. and Wiesemeyer, H. and Requena-Torres, M. A. and Heyminck, S. and Güsten, R. and Stutzki, J. and Simon, R. and Graf, U. U.
    Astron. Astrophys. 542, Art. No. L14 (2012)
  • [12C II] and [13C II] 158  μm emission from NGC 2024: Large column densities of ionized carbon
    Graf, U. U. and Simon, R. and Stutzki, J. and Colgan, S. W. J. and Guan, X. and Güsten, R. and Hartogh, P. and Honingh, C. E. and Hübers, H.-W.
    Astron. Astrophys. 542, Art. No. L16 (2012)
  • The structure of hot gas in Cepheus B
    Mookerjea, B. and Ossenkopf, V. and Ricken, O. and Güsten, R. and Graf, U. U. and Jacobs, K. and Kramer, C. and Simon, R. and Stutzki, J.
    Astron. Astrophys. 542, Art. No. L17 (2012)
  • Extension of GREAT into a first heterodyne array for far infrared spectroscopy with SOFIA
    Risacher, C. and Heyminck, S. and Klein, T. and Camara, I. and Güsten, R. and Graf, U. and Jacobs, K. and Honingh, N. and Stutzki, J. and Hübers, H.--W. and Richter, H. and Semenov, A.
    23rd International Symposium on Space Terahertz Technology, 96 (2012)
  • GREAT : Successful first year of science operation
    Heyminck, S. and Graf, U. and Güsten, R. and Stutzki, J. and Hübers, H.--W. and Hartogh, P. and Bell, A. and Bielau, F. and Busch, A. and Honingh, N. and Jacobs, K. and Jarchow, C. and Kasemann, C. and Klein, B. and Klein, T. and Korsitzky, H. and Krämer, I. and Leinz, C. and Lengowski, M. and Meyer, K. and Moratschke, D. and Philipp, M. and Pütz, P. and Rabanus, D. and Ricken, O. and Risacher, C. and Schieder, R. and Schultz, M. and Steinmetz, E. and Wagner, A. and Wiesemeyer, H. and Wunsch, A. and Xing, G.
    23rd International Symposium on Space Terahertz Technology, 96 (2012)

2011

  • Photon Dominated Regions in NGC 3603. [CI] and Mid-J CO Line Emission
    Röllig, M. and Kramer, C. and Rajbahak, C. and Minamidani, T. and Sun, K. and Simon, R. and Ossenkopf, V. and Cubick, M. and Hitschfeld, M. and Aravena, M. and Bensch, F. and Bertoldi, F. and Bronfman, L. and Fujishita, M. and Fukui, Y. and Graf, U. U. and Honingh, N. and Ito, S. and Jakob, H. and Jacobs, K. and Klein, U. and Koo, B.-C. and May, J. and Miller, M. and Miyamoto, Y. and Mizuno, N. and Onishi, T. and Park, Y.-S. and Pineda, J. and Rabanus, D. and Sasago, H. and Schieder, R. and Stutzki, J. and ...
    Astron. Astrophys. 525, Art. No. A8 (2011)
  • The Stratospheric THz Observatory (STO): Preparations for Science Flight
    Walker, C. and Kulesa, C. and Kloostermann, J. and Cottam, T. and Groppi, C. and Bernasconi, P. and Eaton, H. and Rolander, N. and Carkhuff, B. and Hechtman, S. and Gottlieb, J. and Neufeld, D. and Lisse, C. and Stark, A. and Hollenbach, D. and Kawamura, J. and Goldsmith, P. and Langer, W. and Yorke, H. and Sterne, J. and Skalare, A. and Mehdi, I. and Weinreb, S. and Kooi, J. and Stutzki, J. and Graf, U. and Honingh, C. and Pütz, P. and Martin, C. and Lesser, D. and Wolfire, M.
    Proceedings of the 22nd International Symposium on Space Terahertz Technology (ISSTT 2011), 171-173 (2011)
  • Receiver Optics and 1.9 THz HEB Mixers for STO
    Brasse, M. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Justen, M. and Pütz, P. and Schultz, M. and Stutzki, J.
    Proceedings of the 22nd International Symposium on Space Terahertz Technology (ISSTT 2011), 69 (2011)

2010

  • The Stratospheric THz Observatory (STO): 1st Test Flight
    Walker, C. and Kulesa, C. and Kloostermann, J. and Cottam, T. and Groppi, C. and Bernasconi, P. and Eaton, H. and Rolander, N. and Neufeld, D. and Lisse, C. and Stark, A. and Hollenbach, D. and Kawamura, J. and Goldsmith, P. and Langer, W. and Yorke, H. and Sterne, J. and Skalare, A. and Mehdi, I. and Weinreb, S. and Kooi, J. and Stutzki, J. and Graf, U. and Honingh, C. and Pütz, P. and Martin, C. and Lesser, D. and Wolfire, M.
    21st International Symposium on Space Terahertz Technology, 46-49 (2010)
  • The Stratospheric THz Observatory (STO)
    Walker, C. and Kulesa, C. and Bernasconi, P. and Eaton, H. and Rolander, N. and Groppi, C. and Kloosterman, J. and Cottam, T. and Lesser, D. and Martin, C. and Stark, A. and Neufeld, D. and Lisse, C. and Hollenbach, D. and Kawamura, J. and Goldsmith, P. and Langer, W. and Yorke, H. and Sterne, J. and Skalare, A. and Mehdi, I. and Weinreb, S. and Kooi, J. and Stutzki, J. and Graf, U. and Brasse, M. and Honingh, C. and Simon, R. and Akyilmaz, M. and Pütz, P. and Wolfire, M.
    Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series 7733 (2010)

2009

2008

  • Hot Molecular Gas in NGC2024
    Emprechtinger, M. and Wiedner, M. C. and Simon, R. and Wieching, G. and Volgenau, N. H. and Graf, U. U. and Güsten, R. and Honingh, C. E. and Jacobs, K. and Stutzki, J. and Wyrowski, F.
    EAS Publications Series 31, 173–175 (2008)
  • Submillimeter heterodyne arrays for APEX
    Güsten, R. and Baryshev, A. and Bell, A. and Belloche, A. and Graf, U. and Hafok, H. and Heyminck, S. and Hochgürtel, S. and Honingh, C. E. and Jacobs, K. and Kasemann, C. and Klein, B. and Klein, T. and Korn, A. and Krämer, I. and Leinz, C. and Lundgren, A. and Menten, K. M. and Meyer, K. and Muders, D. and Pacek, F. and Rabanus, D. ...
    Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV 7020 (2008)
  • Far-Infrared Astronomy with the CO N+ Deuterium Observations Receiver (CONDOR)
    Wiedner, M. C. and Bielau, F. and Emprechtinger, M. and Ricken, O. and Volgenau, N. and Wieching, G. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Stutzki, J.
    EAS Publications Series 31, 215-216 (2008)
  • 12CO 4–3 and [CI] 1–0 at the centers of NGC 4945 and Circinus
    Hitschfeld, M. and Aravena, M. and Kramer, C. and Bertoldi, F. and Stutzki, J. and Bensch, F. and Bronfman, L. and Cubick, M. and Fujishita, M. and Fukui, Y. and Graf, U. U. and Honingh, N. and Ito, S. and Jakob, H. and Jacobs, K. and Klein, U. and Koo, B.-C. and May, J. and Miller, M. and Miyamoto, Y. and Mizuno, N. and Onishi, T. and Park, Y.-S.
    Astron. Astrophys. 479, 75–82 (2008)
  • Clumpy photon-dominated regions in Carina. I. [C I] and mid-J CO lines in two 4'×4' fields
    Kramer, C. and Cubick, M. and Röllig, M. and Sun, K. and Yonekura, Y. and Aravena, M. and Bensch, F. and Bertoldi, F. and Bronfman, L. and Fujishita, M. and Fukui, Y. and Graf, U. U. and Hitschfeld, M. and Honingh, N. and Ito, S. and Jakob, H. and Jacobs, K. and Klein, U. and Koo, B.-C. and May, J. and Miller, M. and Miyamoto, Y. and Mizuno, N
    Astron. Astrophys. 477, 547–555 (2008)
  • GREAT: a first light instrument for SOFIA
    Heyminck, S. and Güsten, R. and Hartogh, P. and Hübers, H.-W. and Stutzki, J. and Graf, U. U.
    Ground-based and Airborne Instrumentation for Astronomy II 7014 (2008)
  • Submillimeter line emission from LMC N159W: a dense, clumpy PDR in a low metallicity environment
    Pineda, J. L. and Mizuno, N. and Stutzki, J. and Cubick, M. and Aravena, M. and Bensch, F. and Bertoldi, F. and Bronfman, L. and Fujishita, K. and Graf, U. U. and Hitschfeld, M. and Honingh, N. and Jakob, H. and Jacobs, K. and Kawamura, A. and Klein, U. and Kramer, C. and May, J. and Miller, M. and Mizuno, Y. and Müller, P. and Onishi, T. an ...
    Astron. Astrophys. 482, 197-208 (2008)
  • The Stratospheric TeraHertz Observatory (STO)
    Walker, C. K. and Kulesa, C. A. and Groppi, C. E. and Young, E. and McMahon, T. and Bernasconi, P. and Lisse, C. and Neufeld, D. and Hollenbach, D. and Kawamura, J. and Goldsmith, P. and Langer, W. and Yorke, H. and Sterne, J. and Skalare, A. and Mehdi, I. and Weinreb, S. and Kooi, J. and Stutzki, J. and Graf, U. and Honingh, C. and Pütz, P. and Martin, C. and Wolfire, M.
    19th International Symposium on Space Terahertz Technology, 28-30 (2008)
  • Upgrade of the SMART Focal Plane Array Receiver for NANTEN2
    Graf, U. U. and Honingh, C. E. and Jacobs, K. and Justen, M. and Pütz, P. and Schultz, M. and Wulff, S. and Stutzki, J.
    19th International Symposium on Space Terahertz Technology, 488 (2008)

2007

  • The cooling of atomic and molecular gas in DR21
    Jakob, H. and Kramer, C. and Simon, R. and Schneider, N. and Ossenkopf, V. and Bontemps, S. and Graf, U. U. and Stutzki, J.
    Astron. Astrophys. 461, 999-1012 (2007)
  • A simple method to design astigmatic off-axis mirrors
    Wagner-Gentner, A. and Graf, U. U. and Philipp, M. and Rabanus, D.
    Infrared Physics and Technology 50, 42-46 (2007)
  • CONDOR observations of high mass star formation in Orion
    Volgenau, N. H. and Wiedner, M. C. and Wieching, G. and Emprechtinger, M. and Bielau, F. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Vowinkel, B. and Güsten, R. and Rabanus, D. and Stutzki, J. and Wyrowski, F.
    Triggered Star Formation in a Turbulent ISM 237, 492-492 (2007)
  • CONDOR - A heterodyne receiver at 1.25-1.5 THz
    Wiedner, M. C. and Wieching, G. and Bielau, F. and Emprechtinger, M. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Paulussen, D. and Rettenbacher, K. and Volgenau, N. H.
    Triggered Star Formation in a Turbulent ISM 237, 495-495 (2007)
  • Compact 1.9 THz BWO local-oscillator for the GREAT heterodyne receiver
    Philipp, M. and Graf, U. U. and Wagner-Gentner, A. and Rabanus, D. and Lewen, F.
    Infrared Phys. Technol. 51, 54–59 (2007)
  • Observations at THz frequencies with CONDOR
    Wiedner, M. C. and Bielau, F. and Emprechtinger, M. and Rettenbacher, K. and Volgenau, N. H. and Wieching, G. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Güsten, R. and Menten, K. M. and Philipp, S. and Rabanus, D. and Simon, R. and Stutzki, J. and Wyrowsk, F.
    Molecules in Space and Laboratory (2007)
  • The APEX 345GHz/460GHz 7-pixel heterodyne array
    Heyminck, S. and Güsten, R. and Kasemann, C. and Stutzki, J. and Jacobs, K. and Honingh, C. E. and Graf, U. U.
    Proceedings of the 17th International Symposium on Space Terahertz Technology, 149-152 (2007)
  • GREAT: the German first light heterodyne instrument for SOFIA
    Graf, U. U. and Heyminck, S. and Güsten, R. and Hartogh, P. and Hübers, H.--W. and Stutzki, J. and Faist, J. and Fischer, M. and Jacobs, K. and Philipp, M. and Rabanus, D. and Semenov, A. and van der Wal, P. and Wagner-Gentner, A. and Walther, C. and Wiedner, M.
    Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series 6678 (2007)

2006

  • Low loss THz window
    Wagner-Gentner, A. and Graf, U. U. and Rabanus, D. and Jacobs, K.
    Infrared Physics and Technology 48, 249-253 (2006)
  • The first-light APEX submillimeter heterodyne instrument FLASH
    Heyminck, S. and Kasemann, C. and Güsten, R. and de Lange, G. and Graf, U. U.
    Astron. Astrophys. 454, L21-L24 (2006)
  • Expandable fully reflective focal-plane optics for millimeter- and submillimeter-wave array receivers
    Lüthi, T. and Rabanus, D. and Graf, U. U. and Granet, C. and Murk, A.
    Rev. Sci. Instrum. 77, Art.-No. 014702 (2006)
  • First observations with CONDOR, a 1.5 THz heterodyne receiver
    Wiedner, M. C. and Wieching, G. and Bielau, F. and Rettenbacher, K. and Volgenau, N. H. and Emprechtinger, M. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Vowinkel, B. and Menten, K. M. and Nyman, L.-Å. and Güsten, R. and Philipp, S. and Rabanus, D. and Stutzki, J. and Wyrowski, F.
    Astron. Astrophys. 454, L33-L36 (2006)
  • GREAT: the German first light heterodyne instrument for SOFIA
    Graf, U. U. and Heyminck, S. and Güsten, R. and Hartogh, P. and Hübers, H.-W. and Jacobs, K. and Philipp, M. and Rabanus, D. and Röser, H.-P. and Stutzki, J. and van der Wal, P. and Wagner-Gentner, A.
    Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III 6275 (2006)
  • CONDOR - a heterodyne receiver at 1.25-1.5THz
    Wiedner, M. C. and Wieching, G. and Bielau, F. and Emprechtinger, M. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Rettenbacher, K. and Volgenau, N. H.
    IAU Symposium: Triggered Star Formation in a Turbulent ISM 237 (2006)
  • Low loss THz window
    Wagner-Gentner, A. and Jacobs, K. and Graf, U. U. and Rabanus, D.
    Proceedings of the 16th International Symposium on Space Terahertz Technology, 360-363 (2006)
  • CONDOR Observations of High-Mass Star Formation in Orion
    Volgenau, N. H. and Wiedner, M. C. and Wieching, G. and Emprechtinger, M. and Bielau, F. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Vowinkel, B. and Güsten, R. and Philipp, S. and Rabanus, D. and Stutzki, J. and Wyrowski, F.
    IAU Symposium: Triggered Star Formation in a Turbulent ISM 237 (2006)
  • A new multibeam receiver for KOSMA with scalable fully reflective focal plane array optics
    Lüthi, T. and Rabanus, D. and Graf, U. U. and Granet, C. and Murk, A.
    Proceedings of the 16th International Symposium on Space Terahertz Technology, 157-160 (2006)
  • NANTEN2 Project: CO and CI Survey of the Southern Sky
    Fukui, Y. and Onishi, T. and Mizuno, N. and Mizuno, A. and Ogawa, H. and Yonekura, Y. and Stutzki, J. and Graf, U. and Kramer, C. and Simon, R. and Bertoldi, F. and Klein, U. and Bensch, F. and Koo, B. C. and Park, Y. S. and Bronfman, L. and May, J. and Burton, M. and Benz, A.
    Astronomical Facilities of the Next Decade, 26th meeting of the IAU, Special Session 1 (2006)

2005

2004

  • GREAT optics
    Wagner-Gentner, A. and Graf, U. U. and Philipp, M. and Rabanus, D. and Stutzki, J.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy II 5498, 464-472 (2004)
  • Multi-Wavelength Surveys of Galactic Star Forming Regions
    Simon, R. and Schneider, N. and Bontemps, S. and Jakob, H. and Graf, U. and Kramer, C. and Miller, M. and Mookerjea, B. and Stutzki, J.
    Milky Way Surveys: The Structure and Evolution of our Galaxy 317, 97 (2004)
  • 1.4-THz receiver for APEX and for GREAT on SOFIA
    Schmidt, G. and Bielau, F. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Rettenbacher, K. and Stutzki, J. and Wiedner, M. C.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy II 5498, 675-684 (2004)
  • Cryogenic design of KOSMA's SOFIA Terahertz Array Receiver (STAR)
    Rabanus, D. and Graf, U. U. and Philipp, M. and Stutzki, J. and Wagner-Gentner, A.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy II 5498, 473-480 (2004)
  • Compact 1.6--1.9 THz local oscillator as stand--alone unit for GREAT
    Philipp, M. and Graf, U. U. and Lewen, F. and Rabanus, D. and Wagner--Gentner, A. and Müller, P. and Stutzki, J.
    Proceedings of the 15th International Symposium on Space Terahertz Technology, 248-254 (2004)
  • First results from DesertSTAR: a 7-pixel 345-GHz heterodyne array receiver for the Heinrich Hertz Telescope
    Groppi, C. E. and Walker, C. K. and Kulesa, C. and Golish, D. and Hedden, A. and Narayanan, G. and Lichtenberger, A. W. and Kooi, J. W. and Graf, U. U. and Heyminck, S.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy II 5498, 290-299 (2004)
  • Terahertz Astronomy at KOSMA
    Graf, U. U. and Jacobs, K. and Schieder, R. and Stutzki, J. and Wiedner, M. C.
    Proceedings of the Terahertz Workshop 2004 (2004)

2003

  • Photogrammetric surface measurement of the KOSMA 3m-Telescope
    Miller, M. and Graf, U. U. and Kinzel, R. and Kramer, C. and Lettau, M. and Stenvers, K. and Stutzki, J.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors for Astronomy 4855, 594-601 (2003)
  • DesertSTAR: a 7 pixel 345 GHz heterodyne array receiver for the Heinrich Hertz Telescope
    Groppi, C. E. and Walker, C. K. and Kulesa, C. and Golish, D. and Hedden, A. S. and Gensheimer, P. and Narayanan, G. and Lichtenberger, A. W. and Graf, U. U. and Heyminck, S.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors for Astronomy 4855, 330-337 (2003)
  • Heterodyne Array Develoment at the Univeristy of Arizona
    Groppi, C. and Walker, C. and Narayanan, G. and Jacobs, K. and Graf, U. and Schieder, R. and Kooi, J.
    Proceedings of the 14th International Symposium on Space Terahertz Technology, 189-203 (2003)
  • SMART: The KOSMA Sub-Millimeter Array Receiver for Two frequencies
    Graf, U. U. and Heyminck, S. and Michael, E. A. and Stanko, S. and Honingh, C. E. and Jacobs, K. and Schieder, R. T. and Stutzki, J. and Vowinkel, B.
    Proceedings of the SPIE: Millimeter and Submillimeter Detectors for Astronomy 4855, 322-329 (2003)
  • STAR: SOFIA terahertz array receiver
    Graf, U. U. and Heyminck, S. and Rabanus, D. and Jacobs, K. and Schieder, R. T. and Stutzki, J.
    Proceedings of the SPIE: Airborne Telescope Systems II 4857, 97-104 (2003)
  • GREAT: The German Receiver for Astronomy at Terahertz Frequencies
    R. Güsten and I. Camara and P. Hartogh and H.--W. Hübers and U. U. Graf and K. Jacobs and C. Kasemann and H.--P. Röser and R. Schieder and G. Schneider and O. Siebertz and J. Stutzki and G. Villanueva and A. Wagner and P. van der Wal and A. Wunsch
    Proceedings of the SPIE: Airborne Telescope Systems II 4857, 56-61 (2003)

2002

  • Automatic Tuning of SMART, KOSMA's 490/810 GHz Array Receiver
    S. Stanko and U. U. Graf and S. Heyminck
    Proceedings of the 13th International Symposium on Space Terahertz Technology, 421-430 (2002)
  • SMART, the KOSMA Sub--Millimeter Array Receiver for Two frequencies
    U. U. Graf and S. Heyminck and E. A. Michael and S. Stanko and C. E. Honingh and K. Jacobs and R. Schieder and J. Stutzki
    Proceedings of the 13th International Symposium on Space Terahertz Technology, 143-151 (2002)

2001

  • Fourier Gratings as Submillimeter Beam Splitters
    U. U. Graf and S. Heyminck
    IEEE Trans. AP 49, 542–546 (2001)
  • PoleStar: An 810 GHz Array Receiver for AST/RO
    C. Walker and C. Groppi and D. Golish and C. Kulesa and A. Hungerford and C. Drouët d'Aubigny and K. Jacobs and U. Graf and C. Martin and J. Kooi
    Proceedings of the 12th International Symposium on Space Terahertz Technology, 540-552 (2001)
  • Array--Receiver LO Unit using Collimating Fourier Gratings
    Heyminck, S. and Graf, U. U.
    Proceedings of the 12th International Symposium on Space Terahertz Technology, 563-570 (2001)
  • KOSMA's 490/810 GHz Array Receiver
    Graf, U. U. and Heyminck, S. and Michael, E. A. and Stanko, S.
    Proceedings of the 12th International Symposium on Space Terahertz Technology, 553-562 (2001)

2000

  • Fabrication and Testing of Chemically Micromachined Silicon Echelle Gratings
    Keller, L. D. and Jaffe, D. T. and Ershov, O. A. and Benedict, T. and Graf, U. U.
    Appl. Opt. 39, 1094–1105 (2000)
  • SOFIA terahertz array receiver (STAR)
    Michael, E. A. and Graf, U. U. and Honingh, C. E. and Jacobs, K. and Lewen, F. and Schieder, R. T. and Stutzki, J.
    Proceedings of the SPIE: Airborne Telescope Systems 4014, 109-115 (2000)
  • Reflection gratings as THz local oscillator multiplexer
    Heyminck, S. and Graf, U. U.
    Proceedings of the SPIE: Airborne Telescope Systems 4014, 164-171 (2000)
  • The next step: FIR heterodyne spectroscopy on board SOFIA
    Güsten, R. and Schäfer, F. and Stark, R. and van der Wal, P. and Graf, U. and Schieder, R. and Stutzki, J. and Hübers, H. and Krabbe, A. and Röser, H.--P. and Hartogh, P.
    ISO beyond the peaks: The 2nd ISO workshop on analytical spectroscopy, E34 (2000)
  • GREAT: the first-generation German heterodyne receiver for SOFIA
    Güsten, R. and Hartogh, P. and Hübers, H.--W. and Graf, U. U. and Jacobs, K. and Röser, H.--P. and Schäfer, F. and Schieder, R. T. and Stark, R. and Stutzki, J. and van der Wal, P. and Wunsch, A.
    Proceedings of the SPIE: Airborne Telescope Systems 4014, 23-30 (2000)
  • Multi-Beam Imaging at KOSMA
    Graf, U. U. and Jacobs, K. and Schieder, R. and Stutzki, J.
    The Astronomical Society of the Pacific Conference Series: Imaging at Radio through Submillimeter Wavelengths, E17 (2000)
  • A Novel Type of Phase Grating for THz Beam Multiplexing
    Graf, U. U. and Heyminck, S.
    Proceedings of the 11th International Symposium on Space Terahertz Technology, 608-615 (2000)

1999

  • Fourier Gratings as THz Local Oszillator Multiplexer
    Graf, U. U. and Heyminck, S.
    Proceedings of the IEEE 7th International Conference on Terahertz Electronics, 56-59 (1999)

1998

  • Submm observations of isotopomeric CO lines: The large scale distribution of warm and dense gas in the Orion A and B molecular clouds
    Simon, R. and Kramer, C. and Heithausen, A. and Graf, U. and Koster, B. and Stutzki, J. and Winnewisser, G.
    The 3rd Cologne-Zermatt Symposium: The Physics and Chemistry of the Interstellar Medium (1998)
  • New KOSMA 3-m telescope
    Kramer, C. and Degiacomi, C. G. and Graf, U. U. and Hills, R. E. and Miller, M. and Schieder, R. and Schneider, N. and Stutzki, J. and Winnewisser, G. F.
    Proceedings of the SPIE: Advanced Technology MMW, Radio and Terahertz Telescopes 3357, 711-720 (1998)
  • Receiver Development at KOSMA
    Graf, U. U. and Honingh, C. E. and Jacobs, K. and Schieder, R. and Stutzki, J. and Vowinkel, B.
    The 3rd Cologne-Zermatt Symposium: The Physics and Chemistry of the Interstellar Medium, E196 (1998)
  • Extragalactic Astronomy with the KOSMA 3m-Submillimeter Telescope
    Graf, U. U. and Hafok, H. and Neininger, N. and Stutzki, J. and Winnewisser, G.
    The 3rd Cologne-Zermatt Symposium: The Physics and Chemistry of the Interstellar Mediu, E83 (1998)
  • Submm- and Terahertz-Receiver Development at KOSMA
    Graf, U. U. and Honingh, C. E. and Jacobs, K. and Schieder, R. and Stutzki, J.
    Astronomische Gesellschaft Meeting Abstracts 14, 120 (1998)
  • Molecular Clouds and their Boundary Layers
    Graf, U. U. and Stutzki, J.
    Astrophysics From Antarctica 141, 133 (1998)
  • Array receiver development at KOSMA for the submillimeter and terahertz spectral range
    Graf, U. U. and Haas, S. and Honingh, C. E. and Jacobs, K. and Schieder, R. and Stutzki, J.
    Proceedings of the SPIE: Advanced Technology MMW, Radio and Terahertz Telescopes 3357, 159-166 (1998)