Accès ouvert
2024
article
OpenAlex
Leo Semmelmann, Marie Konermann, Daniel R. Dietze, Philipp Staudt
An increasing number of battery energy storage systems are installed in households globally. These systems are influenced by distinct regulatory frameworks. Internationally, a consolidated regulatory framework for household battery energy storage has yet to emerge. The widely proliferated self-consumption regulation promotes the …
de
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2019
article
OpenAlex
Scott R. Ellis, Daniel R. Dietze, Tonatiuh Rangel, Florian Brown-Altvater et autres
The characterization of specific phonon modes and exciton states that lead to efficient singlet fission (SF) may be instrumental in the design of the next generation of high-efficiency photovoltaic devices. To this end, we analyze the absolute resonance Raman (RR) cross sections …
us
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Accès ouvert
2018
article
OpenAlex
Myeongkee Park, Amanda J. Neukirch, Sebastian E. Reyes‐Lillo, Minliang Lai et autres
Abstract Hybrid organic–inorganic perovskites have attractive optoelectronic properties including exceptional solar cell performance. The improved properties of perovskites have been attributed to polaronic effects involving stabilization of localized charge character by structural deformations and polarizations. Here we examine the Pb–I structural dynamics …
kr, us, cl, de
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Accès ouvert
2016
article
OpenAlex
Daniel R. Dietze, Richard A. Mathies
The Front Cover picture sketches the first step in vision, the trans-to-cis isomerization of retinal. This not only represents one of the most important experiments conducted to date using femtosecond stimulated Raman spectroscopy, but also beautifully illustrates the capabilities of this technology. …
us
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Accès ouvert
2016
article
OpenAlex
Daniel R. Dietze, Richard A. Mathies
Abstract The front cover artwork is provided by the group of Prof. Richard A. Mathies (University of California at Berkeley, USA). The image sketches the first step in vision: the 11‐cis to all‐trans isomerization of retinal in the visual pigment rhodopsin, as …
us
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2016
article
OpenAlex
Daniel R. Dietze, Richard A. Mathies
Femtosecond stimulated Raman spectroscopy (FSRS) is an ultrafast nonlinear optical technique that provides vibrational structural information with high temporal (sub-50 fs) precision and high spectral (10 cm(-1) ) resolution. Since the first full demonstration of its capabilities ≈15 years ago, FSRS has …
us
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Accès ouvert
2015
article
OpenAlex
Tadas Balčiūnas, Dušan Lorenc, Misha Ivanov, Olga V. Smirnova et autres
We study THz-emission from a plasma driven by an incommensurate-frequency two-colour laser field. A semi-classical transient electron current model is derived from a fully quantum-mechanical description of the emission process in terms of sub-cycle field-ionization followed by continuum-continuum electron transitions. For the …
at, de, ru, fr
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2015
article
OpenAlex
Daniel R. Dietze, Richard A. Mathies
3,3′-Diethylthiatricarbocyanine iodide (DTTC) is an important near-infrared Raman reporter and fluorescence marker showing high potential for biomedical imaging. It is commonly assumed that the dye molecules retain their monomeric optical properties when adsorbed to gold surfaces, and surface-enhanced Raman spectroscopy (SERS) experiments …
us
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Accès ouvert
2014
article
OpenAlex
A. Benz, Michael Krall, Sabine Schwarz, Daniel R. Dietze et autres
We present the design, fabrication and characterisation of an intersubband detector employing a resonant metamaterial coupling structure. The semiconductor heterostructure relies on a conventional THz quantum-cascade laser design and is operated at zero bias for the detector operation. The same active region …
at
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Accès ouvert
2013
article
OpenAlex
Daniel R. Dietze, Aaron Maxwell Andrews, P. Klang, G. Strasser et autres
We report on the ultrastrong-coupling between localized plasmons of a planar terahertz metamaterial and intersubband plasmons in a modulation doped quantum well sample. Such a system exhibits the formation of a lower and an upper polariton branch when the metamaterial eigenfrequency is …
at
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Accès ouvert
2013
article
OpenAlex
Daniel R. Dietze, J. Darmo, K. Unterrainer
We demonstrate the direct observation of non-equilibrium intersubband dynamics in a modulation-doped multiple quantum well sample subject to intense few-cycle terahertz (THz) pulses. The transmission spectra show a distinct dependence on the incident THz field strength and contain signatures of a multitude …
at
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2013
conference-paper
OpenAlex
Daniel R. Dietze, J. Darmo, K. Unterrainer
In this contribution, we demonstrate the direct observation of non-equilibrium intersubband dynamics in a modulation-doped quantum well sample induced by intense, broadband terahertz pulses. The THz field dependent transmission of the intersubband system is probed using a depletion-modulation technique, which allows to …
at
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