Dr. Heinar Schmidt Profile

Dr. Heinar Schmidt

at Technische Univ Berlin

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 3 June 2011 Paper

Polarized Raman investigations of oriented animal muscle fibers affected by storage time applying a 671 nm diode laser

Halah Al Ebrahim, Kay Sowoidnich, Heinar Schmidt, Heinz-Detlef Kronfeldt

Proceedings Volume 8027, 802704 (2011) https://doi.org/10.1117/12.883357

KEYWORDS: Raman spectroscopy, Optical fibers, Proteins, Principal component analysis, Semiconductor lasers, Breast, Polarization, Anisotropy, Molecular spectroscopy, Data storage

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Proceedings Article | 26 May 2011 Paper

671-nm microsystem diode laser based on portable Raman sensor device for in-situ identification of meat spoilage

Kay Sowoidnich, Heinar Schmidt, Fredi Schwägele, Heinz-Detlef Kronfeldt

Proceedings Volume 8024, 80240D (2011) https://doi.org/10.1117/12.883350

KEYWORDS: Raman spectroscopy, Sensors, Principal component analysis, Statistical analysis, Semiconductor lasers, Head, Microsystems, Spectroscopy, Optical benches, Proteins

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Proceedings Article | 24 April 2010 Paper

Shifted excitation resonance Raman difference spectroscopy using a microsystem light source at 488 nm

M. Maiwald, K. Sowoidnich, H. Schmidt, B. Sumpf, G. Erbert, H.-D. Kronfeldt

Proceedings Volume 7673, 76730N (2010) https://doi.org/10.1117/12.853017

KEYWORDS: Raman spectroscopy, Light sources, Semiconductor lasers, Second-harmonic generation, Spectroscopy, Crystals, Laser crystals, Microsystems, Bandpass filters, Waveguides

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Proceedings Article | 24 April 2010 Paper

Investigations for real-time Raman measurements in the deep ocean by applying a 1.5 W BA DFB diode laser and long optical fibers

Heinz-Detlef Kronfeldt, Martin Maiwald, Hossam Ahmad, Heinar Schmidt, Klaus Wohlfart, Bernd Sumpf, Andreas Klehr, Götz Erbert

Proceedings Volume 7673, 76730B (2010) https://doi.org/10.1117/12.853073

KEYWORDS: Raman spectroscopy, Minerals, Semiconductor lasers, Optical fibers, Carbonates, Sulfur, Ocean optics, Spectroscopy, Calcite, Sensors

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Proceedings Article | 1 May 2009 Paper

Microsystem light source at 671 nm for shifted excitation Raman difference spectroscopy

M. Maiwald, H. Schmidt, B. Sumpf, H.-D. Kronfeldt, G. Erbert

Proceedings Volume 7312, 73120G (2009) https://doi.org/10.1117/12.817908

KEYWORDS: Raman spectroscopy, Light sources, Laser resonators, Bioalcohols, Microsystems, Semiconductor lasers, Spectroscopy, Laser systems engineering, Sensors, Mirrors

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Proceedings Article | 1 May 2009 Paper

Hand-held Raman sensor head for in-situ characterization of meat quality applying a microsystem 671 nm diode laser

Heinar Schmidt, Kay Sowoidnich, Martin Maiwald, Bernd Sumpf, Heinz-Detlef Kronfeldt

Proceedings Volume 7312, 73120H (2009) https://doi.org/10.1117/12.818163

KEYWORDS: Raman spectroscopy, Optical benches, Sensors, Head, Microsystems, Semiconductor lasers, Spectroscopy, Laser optics, Packaging, Optical filters

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Proceedings Article | 28 April 2009 Paper

Microsystem technology based diode lasers and Raman sensors for in situ food quality control

B. Sumpf, H. Schmidt, M. Maiwald, A. Müller, G. Erbert, H.-D. Kronfeldt, G. Tränkle

Proceedings Volume 7315, 731508 (2009) https://doi.org/10.1117/12.817912

KEYWORDS: Raman spectroscopy, Sensors, Semiconductor lasers, Microsystems, Rutherfordium, Light sources, Optical benches, Reflectivity, Laser applications, Laser sources

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Proceedings Article | 28 April 2009 Paper

In-situ characterization of meat aging with diode-laser Raman spectroscopy

Heinar Schmidt, Jenny Blum, Kay Sowoidnich, Bernd Sumpf, Fredi Schwägele, Heinz-Detlef Kronfeldt

Proceedings Volume 7315, 731509 (2009) https://doi.org/10.1117/12.818182

KEYWORDS: Raman spectroscopy, Proteins, Laser induced fluorescence, Principal component analysis, Packaging, Bacteria, Statistical analysis, Semiconductor lasers, Near infrared, Oxygen

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Proceedings Article | 7 February 2007 Paper

Reliable operation of 785 nm DFB diode lasers for rapid Raman spectroscopy

M. Maiwald, G. Erbert, A. Klehr, B. Sumpf, H. Wenzel, T. Laurent, J. Wiedmann, H.-D. Kronfeldt, H. Schmidt

Proceedings Volume 6456, 64560W (2007) https://doi.org/10.1117/12.699899

KEYWORDS: Raman spectroscopy, Semiconductor lasers, Light sources, Spectral resolution, Laser optics, Spectroscopy, High power lasers, Spectroscopes, Sensors, Continuous wave operation

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Proceedings Article | 23 February 2006 Paper

SERS substrates produced by tailor-made metal nanoparticles

D. Blázquez Sánchez, L. Gallasch, H. Schmidt, H.-D. Kronfeldt, N. Borg, F. Hubenthal, F. Träger

Proceedings Volume 6099, 609904 (2006) https://doi.org/10.1117/12.645984

KEYWORDS: Nanoparticles, Surface enhanced Raman spectroscopy, Particles, Raman spectroscopy, Metals, Silver, Molecules, Absorption, Dielectrics, Coating

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Proceedings Article | 8 November 2005 Paper

Monolithic DFB laser diodes emitting at 785 nm for in situ SER spectroscopy

Martin Maiwald, Götz Erbert, Andreas Klehr, Bernd Sumpf, Hans Wenzel, Heinar Schmidt, Heinz-Detlef Kronfeldt

Proceedings Volume 5993, 599305 (2005) https://doi.org/10.1117/12.630613

KEYWORDS: Raman spectroscopy, Surface enhanced Raman spectroscopy, Semiconductor lasers, Sensors, Laser stabilization, Optical filters, Light sources, Spectroscopy, Dielectric filters, Environmental sensing

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Proceedings Article | 21 December 1999 Paper

Development of a SERS optode for the in-situ detection of chemicals in sea water

Heinar Schmidt, Thomas Murphy, S. Lucht, Heinz Kronfeldt

Proceedings Volume 3853, (1999) https://doi.org/10.1117/12.372873

KEYWORDS: Optical fibers, Surface enhanced Raman spectroscopy, Head, Water, Quartz, Spectrographs, Infrared spectroscopy, Spectroscopy, Chemical analysis, Silver

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