Dr. Andreas Letsch Profile

Dr. Andreas Letsch

at Robert Bosch GmbH

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 14 March 2016 Paper

CIGS P3 scribes using ultra-short laser pulses and thermal annealing

Gabor Matthäus, Klaus Bergner, Mawuli Ametowobla, Andreas Letsch, Andreas Tünnermann, Stefan Nolte

Proceedings Volume 9735, 973502 (2016) https://doi.org/10.1117/12.2206210

KEYWORDS: Laser processing, Copper indium gallium selenide, Annealing, Solar cells, Solar energy, Thin films, Thin film solar cells, Micromachining, Electrodes, Laser energy, Pulsed laser operation, Diodes

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Proceedings Article | 22 March 2013 Paper

Impact of P2 scribe geometry on monolithic series interconnected CIGS modules

M. Rekow, D. Bartl, C. Sandfort, A. Letsch

Proceedings Volume 8601, 86012J (2013) https://doi.org/10.1117/12.2003388

KEYWORDS: Resistance, Copper indium gallium selenide, Transparent conductors, Data modeling, Laser processing, Pulsed laser operation, Molybdenum, Oxides, Laser ablation, Instrument modeling

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Proceedings Article | 16 February 2012 Paper

Laser processes for future solar cells

Andreas Letsch, Dominik Bartl, Michael Diez, Roland Gauch, Andreas Michalowski, Margit Hafner

Proceedings Volume 8243, 824317 (2012) https://doi.org/10.1117/12.915771

KEYWORDS: Laser ablation, Laser processing, Silicon, Solar cells, Dielectrics, Molybdenum, Crystals, Pulsed laser operation, Thin films, Photovoltaics

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Proceedings Article | 7 February 2012 Paper

Continuous single pulse resolved measurement of beam diameters at 200 kHz using optical transmission filters

Johannes Fruechtenicht, Andreas Letsch, Andreas Voss, Marwan Abdou Ahmed, Thomas Graf

Proceedings Volume 8236, 82360F (2012) https://doi.org/10.1117/12.906639

KEYWORDS: Optical filters, Cameras, Optical testing, Imaging systems, Measurement devices, Analog electronics, Sensors, Transmittance, Spatial filters, Data storage

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Proceedings Article | 23 February 2006 Paper

Characterization of general astigmatic laser beams

Andreas Letsch, Adolf Giesen

Proceedings Volume 6101, 610117 (2006) https://doi.org/10.1117/12.645866

KEYWORDS: Beam propagation method, Error analysis, Monochromatic aberrations, Standards development, Optical simulations, Laser beam propagation, Optical testing, Monte Carlo methods, Laser therapeutics, CCD cameras

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Proceedings Article | 15 October 2005 Paper

Characterization of a general astigmatic laser beam by measuring its ten second order moments

Andreas Letsch, Adolf Giesen

Proceedings Volume 5962, 59622F (2005) https://doi.org/10.1117/12.624827

KEYWORDS: Beam propagation method, Laser beam propagation, Monochromatic aberrations, Standards development, Optical testing, Optical simulations, Laser therapeutics, CCD cameras, Transmission electron microscopy, Near field

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Proceedings Article | 3 November 2003 Paper

Characterization of YAG laser beams at 1030 nm by diffractive optical correlation filters

Michael Duparre, Barbara Luedge, Carsten Rockstuhl, Andreas Letsch, Siegmund Schroeter, Vladimir Pavelyev

Proceedings Volume 5175, (2003) https://doi.org/10.1117/12.505622

KEYWORDS: Optical filters, Holograms, Image filtering, Electronic filtering, YAG lasers, Laser development, Computer simulations, Superposition, Modes of laser operation, Optical simulations

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Proceedings Article | 30 May 2003 Paper

On-line control of laser beam quality by means of diffractive optical components

Michael Duparre, Carsten Rockstuhl, Andreas Letsch, Siegmund Schroeter, Vladimir Pavelyev

Proceedings Volume 4932, (2003) https://doi.org/10.1117/12.473581

KEYWORDS: Holograms, Optical filters, Image filtering, Electronic filtering, Superposition, Modes of laser operation, Optical simulations, Laser development, Optics manufacturing, Resonators

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Proceedings Article | 30 May 2003 Paper

Results of a round-robin experiment on reflectivity measurments at a wavelength of 1.06 micron

Detlef Nickel, Christoph Fleig, Andrea Erhard, Andreas Letsch, Adolf Giesen, Marco Jupe, Kai Starke, Detlev Ristau, Oswald Wilhelm, Rudolf Huber, Rainer Haspel, Uwe Schuhmann, Chris Scharfenorth, Hans Joachim Eichler, Stefan Gliech, Angela Duparre, Michael Schulz-Grosser, Anna Krasilnikova, Alexandra Haise, Wolfgang Riede, Ona Balachninaite, Rimantas Grigonis, Valdas Sirutkaitis, Vladimir Kazakevich

Proceedings Volume 4932, (2003) https://doi.org/10.1117/12.472005

KEYWORDS: Reflectivity, Laser optics, Laser induced damage, Digital video discs, Laser therapeutics, Transmittance, Laser components, Spectrophotometry, Dielectric mirrors

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Showing 5 of 9 publications

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