Dr. Hendrik Bartko Profile

Dr. Hendrik Bartko

at Max-Planck-Institut für extraterrestrische Physik

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Publications (8)

Proceedings Article | 22 July 2010 Paper

GRAVITY spectrometer: metrology laser blocking strategy at OD=12

Constanza Araujo-Hauck, Sebastian Fischer, Hendrik Bartko, Stefan Gillessen, Christian Straubmeier, Michael Wiest, Senol Yazici, Frank Eisenhauer, Guy Perrin, Wolfgang Brandner, Karine Perraut, Antonio Amorim, Andreas Eckart

Proceedings Volume 7734, 77342Z (2010) https://doi.org/10.1117/12.856021

KEYWORDS: Optical filters, Metrology, Laser metrology, Spectroscopy, Coating, Infrared cameras, Mirrors, K band, Integrated optics, Absorbance

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Proceedings Article | 22 July 2010 Paper

The Fiber Coupler subsystem of the future VLTI instrument GRAVITY

O. Pfuhl, F. Eisenhauer, M. Haug, M. Thiel, S. Kellner, A. Amorim, W. Brandner, J. P. Berger, K. Rousselet-Perraut, G. Perrin, C. Straubmeier, S. Gillessen, H. Bartko, A. Gräter

Proceedings Volume 7734, 77342A (2010) https://doi.org/10.1117/12.857506

KEYWORDS: Fiber couplers, Actuators, Mirrors, Prisms, Polarization, Telescopes, Single mode fibers, Cameras, Interferometry, Optical design

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Proceedings Article | 22 July 2010 Paper

The fringe detection laser metrology for the GRAVITY interferometer at the VLTI

H. Bartko, S. Gillessen, S. Rabien, M. Thiel, A. Gräter, M. Haug, S. Kellner, F. Eisenhauer, S. Lacour, C. Straubmeier, J.-P. Berger, L. Jocou, W. Chibani, S. Lüst, D. Moch, O. Pfuhl, W. Fabian, C. Araujo-Hauck, K. Perraut, W. Brandner, G. Perrin, A. Amorim

Proceedings Volume 7734, 773421 (2010) https://doi.org/10.1117/12.856698

KEYWORDS: Metrology, Calibration, Phase shifts, Laser metrology, Infrared cameras, Diodes, Telescopes, Sensors, Phase measurement, Cameras

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Proceedings Article | 22 July 2010 Open Access

GRAVITY: a four telescope beam combiner instrument for the VLTI

S. Gillessen, F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, K. Perraut, A. Amorim, M. Schöller, C. Araujo-Hauck, H. Bartko, H. Baumeister, J.-P. Berger, P. Carvas, F. Cassaing, F. Chapron, E. Choquet, Y. Clenet, C. Collin, A. Eckart, P. Fedou, S. Fischer, E. Gendron, R. Genzel, P. Gitton, F. Gonte, A. Gräter, P. Haguenauer, M. Haug, X. Haubois, T. Henning, S. Hippler, R. Hofmann, L. Jocou, S. Kellner, P. Kervella, R. Klein, N. Kudryavtseva, S. Lacour, V. Lapeyrere, W. Laun, P. Lena, R. Lenzen, J. Lima, D. Moratschke, D. Moch, T. Moulin, V. Naranjo, U. Neumann, A. Nolot, T. Paumard, O. Pfuhl, S. Rabien, J. Ramos, J. Rees, R.-R. Rohloff, D. Rouan, G. Rousset, A. Sevin, M. Thiel, K. Wagner, M. Wiest, S. Yazici, D. Ziegler

Proceedings Volume 7734, 77340Y (2010) https://doi.org/10.1117/12.856689

KEYWORDS: Stars, Adaptive optics, Telescopes, Sensors, Interferometry, Integrated optics, Spectroscopy, Wavefront sensors, Near infrared, Metrology

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Proceedings Article | 22 July 2010 Paper

The GRAVITY integrated optics beam combination

L. Jocou, K. Perraut, A. Nolot, J. P. Berger, T. Moulin, P. Labeye, S. Lacour, G. Perrin, J. B. Lebouquin, H. Bartko, M. Thiel, F. Eisenhauer

Proceedings Volume 7734, 773430 (2010) https://doi.org/10.1117/12.856375

KEYWORDS: Information operations, Prototyping, Integrated optics, Interferometry, K band, Telescopes, Phase shifts, Silica, Silicon, Glasses

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Proceedings Article | 28 July 2008 Paper

Results from the VLTI-PRIMA fringe tracking testbed

Johannes Sahlmann, Roberto Abuter, Nicola Di Lieto, Serge Ménardi, Françoise Delplancke, Hendrik Bartko, Frank Eisenhauer, Samuel Lévêque, Oliver Pfuhl, Nicolas Schuhler, Gerard van Belle, Gautam Vasisht

Proceedings Volume 7013, 70131A (2008) https://doi.org/10.1117/12.786612

KEYWORDS: Sensors, Calibration, Metrology, Computing systems, Signal to noise ratio, Atmospheric modeling, Detection and tracking algorithms, Observatories, Cameras, Actuators

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Proceedings Article | 28 July 2008 Open Access

Study of the science capabilities of PRIMA in the Galactic Center

H. Bartko, O. Pfuhl, F. Eisenhauer, R. Genzel, S. Gillessen, S. Rabien, R. Abuter, G. v. Belle, F. Delplancke, S. Menardi, J. Sahlmann

Proceedings Volume 7013, 70134K (2008) https://doi.org/10.1117/12.787319

KEYWORDS: Stars, Infrared imaging, Astatine, Galactic astronomy, Interferometers, General relativity, Near infrared, Interferometry, Distance measurement

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Proceedings Article | 28 July 2008 Open Access

GRAVITY: getting to the event horizon of Sgr A*

F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, A. Richichi, S. Gillessen, J. P. Berger, S. Hippler, A. Eckart, M. Schöller, S. Rabien, F. Cassaing, R. Lenzen, M. Thiel, Y. Clénet, J. R. Ramos, S. Kellner, P. Fédou, H. Baumeister, R. Hofmann, E. Gendron, A. Boehm, H. Bartko, X. Haubois, R. Klein, K. Dodds-Eden, K. Houairi, F. Hormuth, A. Gräter, L. Jocou, V. Naranjo, R. Genzel, P. Kervella, T. Henning, N. Hamaus, S. Lacour, U. Neumann, M. Haug, F. Malbet, W. Laun, J. Kolmeder, T. Paumard, R.-R. Rohloff, O. Pfuhl, K. Perraut, J. Ziegleder, D. Rouan, G. Rousset

Proceedings Volume 7013, 70132A (2008) https://doi.org/10.1117/12.788407

KEYWORDS: Stars, Telescopes, Near infrared, Adaptive optics, Metrology, Sensors, Interferometry, Integrated optics, Wavefront sensors, Spectroscopy

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