Mr. Hartmut Lehmann Profile

Hartmut Lehmann

at Leibniz-Institut für Photonische Technologien eV

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Publications (9)

Proceedings Article | 4 March 2019 Presentation

The hollow core light cage: diffractionless propagation of light in "quasi-air" inside a 3D nano-printed on-chip hollow core device (Conference Presentation)

Markus Schmidt, Avi Braun, Chhavi Jain, Julian Gargiulo, Bumjoon Jang, Guangrui Li, Hartmut Lehmann, Stefan Maier

Proceedings Volume 10922, 109220P (2019) https://doi.org/10.1117/12.2511584

KEYWORDS: Light wave propagation, Waveguides, Photonic integrated circuits, Optical components, Integrated circuit design, Integrated circuits, Telecommunications, Medicine, Environmental science, Solids

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Proceedings Article | 14 October 2010 Paper

Enhanced functionality by selective filling of microstructured optical fibers

Hartmut Bartelt, Hartmut Lehmann, Reinhardt Willsch, Ron Spittel, Julia Mörbitz, Muralidharan Balakrishnan

Proceedings Volume 7839, 783909 (2010) https://doi.org/10.1117/12.866438

KEYWORDS: Structured optical fibers, Capillaries, Solids, Polymers, Optical fibers, Polymer thin films, Modulation, Liquids, Waveguides, Glasses

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Proceedings Article | 9 September 2010 Paper

Distributed gas sensor based on a photonic bandgap fiber cell with laser-drilled, lateral microchannels

Hartmut Lehmann, Hartmut Bartelt, Reinhardt Willsch, Rodrigo Amezcua-Correa, Jonathan Knight

Proceedings Volume 7653, 76532W (2010) https://doi.org/10.1117/12.866440

KEYWORDS: Sensors, Gas sensors, Fiber lasers, Cladding, Fiber optics sensors, Signal attenuation, Methane, Single mode fibers, Laser drilling, Spectroscopy

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Proceedings Article | 5 October 2009 Paper

Gas sensing with suspended core fibres and hollow core band gap fibres: a comparative study

Hartmut Lehmann, Jens Kobelke, Kay Schuster, Reinhardt Willsch, Hartmut Bartelt, Rodrigo Amezcua-Correa, Jonathan Knight

Proceedings Volume 7503, 75035C (2009) https://doi.org/10.1117/12.835285

KEYWORDS: Optical fibers, Sensors, Absorption, Gases, Micro optical fluidics, Near infrared, Combustion, Liquids, Silica, Cladding

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Proceedings Article | 5 October 2009 Paper

Fluid-filled microstructured optical fibers and switching applications

Yiping Wang, Wei Jin, Long Jin, Xiaoling Tan, Hartmut Bartelt, Wolfgang Ecke, Klaus Moerl, Hartmut Lehmann, Jens Kobelke, Kerstin Schroeder, Reinhardt Willsch, Manfred Rothhardt, Liye Shan, Sven Brueckner, David J. Richardson

Proceedings Volume 7503, 75035W (2009) https://doi.org/10.1117/12.835040

KEYWORDS: Micro optical fluidics, Fiber Bragg gratings, Liquids, Refractive index, Microfluidics, Switches, Temperature metrology, Switching, Absorption, Structured optical fibers

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Proceedings Article | 16 May 2008 Paper

Optical fiber-coupled flow cells and their application in in-situ water analysis

Günter Schwotzer, Hartmut Lehmann, Lars Kröckel, Torsten Wieduwilt, Reinhard Willsch

Proceedings Volume 7004, 70043Y (2008) https://doi.org/10.1117/12.786041

KEYWORDS: Luminescence, Liquids, Water, Waveguides, Atrial fibrillation, Sensors, Absorption, Optical fibers, Statistical analysis, Spectrophotometry

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Proceedings Article | 16 May 2008 Paper

Microstructured index-guiding fibers with large cladding holes for evanescent field chemical sensing

Hartmut Lehmann, Jens Kobelke, Kay Schuster, Anka Schwuchow, Reinhardt Willsch, Hartmut Bartelt

Proceedings Volume 7004, 70042R (2008) https://doi.org/10.1117/12.786012

KEYWORDS: Optical fibers, Bridges, Cladding, Liquids, Micro optical fluidics, Absorption, Biological and chemical sensing, Structured optical fibers, Gases, Sensors

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Proceedings Article | 23 May 2005 Paper

Toward photonic crystal fiber based distributed chemosensors

Hartmut Lehmann, Sven Brueckner, Jens Kobelke, Guenter Schwotzer, Kay Schuster, Reinhardt Willsch

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.623667

KEYWORDS: Structured optical fibers, Sensors, Gas sensors, Solids, Fiber optics sensors, Cladding, Photonic crystal fibers, Capillaries, Laser drilling, Methane

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Proceedings Article | 29 September 1995 Paper

Fiber optic sensor for adsorption studies using surface plasmon resonance

Jiri Homola, Guenter Schwotzer, Hartmut Lehmann, Reinhardt Willsch, Wolfgang Ecke, Hartmut Bartelt

Proceedings Volume 2508, (1995) https://doi.org/10.1117/12.221746

KEYWORDS: Silica, Adsorption, Surface plasmons, Sensors, Water, Humidity, Metals, Gold, Glasses, Reflectivity

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Showing 5 of 9 publications

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