Search Results - "Heuer, Axel"

Political institutions and health expenditure by Blum, Johannes, Dorn, Florian, Heuer, Axel

“…We examine how political institutions influence health expenditure by using a panel of 151 developing and developed countries for the years 2000 to 2015 and…”
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Enhanced two-photon excited fluorescence from imaging agents using true thermal light by Jechow, Andreas, Seefeldt, Michael, Kurzke, Henning, Heuer, Axel, Menzel, Ralf

“…Two-photon excited fluorescence (TPEF) is a standard technique in modern microscopy 1 , but is still affected by photodamage to the probe. It has been proposed…”
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Wave-particle dualism and complementarity unraveled by a different mode by Menzel, Ralf, Puhlmann, Dirk, Heuer, Axel, Schleich, Wolfgang P

“…The precise knowledge of one of two complementary experimental outcomes prevents us from obtaining complete information about the other one. This formulation…”
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Entanglement, Complementarity, and Vacuum Fields in Spontaneous Parametric Down-Conversion by Menzel, Ralf, Heuer, Axel, Milonni, Peter

“…Using two crystals for spontaneous parametric down-conversion in a parallel setup, we observe two-photon interference with high visibility. The high visibility…”
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Colloidal Fouling of Ultrafiltration Membranes: Impact of Aggregate Structure and Size by Waite, T.David, Schäfer, Andrea I., Fane, Anthony G., Heuer, Axel

“…A close coupling between the structure and size of hematite flocs formed in suspension and the permeability of the cake that accumulates on ultrafiltration…”
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Phase measurement and far-field reconstruction on externally coupled laser diode arrays by Niebuhr, Mario, Heuer, Axel

“…Passive coherent combination of several discrete low power laser diodes is a promising way to overcome the issue of degrading beam quality when scaling single…”
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Broad area diode laser with on-chip transverse Bragg grating stabilized in an off-axis external cavity by Zink, Christof, Niebuhr, Mario, Jechow, Andreas, Heuer, Axel, Menzel, Ralf

“…The emission characteristics of a novel, specially designed broad area diode laser (BAL) with on-chip transversal Bragg resonance (TBR) grating in lateral…”
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Multi-Wavelength Operation of a Single Broad Area Diode Laser by Spectral Beam Combining by Zink, Christof, Werner, Nils, Jechow, Andreas, Heuer, Axel, Menzel, Ralf

“…Stabilized multi-wavelength emission from a single emitter broad area diode laser (BAL) is realized by utilizing an external cavity with a spectral beam…”
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Mode stabilization of a laterally structured broad area diode laser using an external volume Bragg grating by Niebuhr, Mario, Zink, Christof, Jechow, Andreas, Heuer, Axel, Glebov, Leonid B, Menzel, Ralf

“…An external volume Bragg grating (VBG) is used for transverse and longitudinal mode stabilization of a broad area diode laser (BAL) with an on-chip transverse…”
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High brightness, tunable biphoton source at 976 nm for quantum spectroscopy by Jechow, Andreas, Heuer, Axel, Menzel, Ralf

“…A compact all solid state continuous-wave biphoton source, tunable around 488 nm, for quantum spectroscopic applications based on a frequency doubled diode…”
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Two-dimensional modeling of transient gain gratings in saturable gain media by Elsner, Robert, Ullmann, Roland, Heuer, Axel, Menzel, Ralf, Ostermeyer, Martin

“…A transient two-dimensional model describing degenerate four-wave mixing inside saturable gain media is presented. The new model is compared to existing…”
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Compact white-light source with an average output power of 2.4 W and 900 nm spectral bandwidth by Seefeldt, Michael, Heuer, Axel, Menzel, Ralf

“…The appropriate combination of a passively mode-locked Nd:YVO 4 pump laser with 10 ps pump pulse duration at 1064 nm and a dispersion-adapted air–silica…”
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The evidence of phase memory in induced coherence without induced emission by Heuer, A., Fritsch, S., Menzel, R.

“…Two signal beams emitted from two simultaneously pumped parametric down converters show first order interference if the two idler beams were aligned. Due to…”
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Frequency stable coupling of laser oscillators using gain gratings in Nd:YAG by Ullmann, Roland, Eisner, Robert, Heuer, Axel, Menzel, Ralf, Ostermeyer, Martin

“…To realize frequency-stable operation of a Q-switched loop resonator, a passive coupling scheme based on gain gratings is numerically investigated. Existing…”
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Second-order coherence properties of amplified spontaneous emission from a high-power tapered superluminescent diode by Kiethe, Jan, Heuer, Axel, Jechow, Andreas

“…Laser Physics Letters, 14, 086201 (2017) We study the degree of second-order coherence of the emission of a high-power multi-quantum well superluminescent…”
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Entanglement, complementarity, and vacuum fields in spontaneous parametric down-conversion by Menzel, Ralf, Heuer, Axel, Milonni, Peter W

“…Using two crystals for spontaneous parametric down-conversion in a parallel setup, we observe two-photon interference with high visibility. The high visibility…”
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Frequency doubling of temporally incoherent light from a superluminescent diode in a periodically poled lithium niobate waveguide crystal by Kurzke, Henning, Kiethe, Jan, Heuer, Axel, Jechow, Andreas

“…Laser Physics Letters, 2017, Volume 14, Number 5, 055402 The amplified spontaneous emission from a superluminescent diode was frequency doubled in a…”
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Highly efficient tunable blue light generation using an external cavity enhanced gain guided broad area laser diode by Jechow, A., Heuer, A., Menzel, R.

“…An infrared broad area laser diode, wavelength stabilized in an external cavity, is frequency doubled by the use of a PPLN waveguide crystal in a single-pass…”
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Phase memory across two single photon interferometers including wavelength conversion by Heuer, Axel, Raabe, Sebastian, Menzel, Ralf

“…Phys. Rev. A 90, 045803 (2014) Detailed investigations of single photon 1st-order interferences of separated emitters allow for analyzing the role of the mode…”
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The photon, its mode function and complementarity by Menzel, Ralf, Marx, Robert, Puhlmann, Dirk, Heuer, Axel, Schleich, Wolfgang P

“…We probe the principle of complementarity by performing a double-slit experiment based on entangled photons created by spontaneous parametric down-conversion…”
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