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We study computationally and experimentally the propagation of chemical pulses in complex geometries.The reaction of interest, CO oxidation, takes place on single crystal Pt(110) surfaces that are microlithographically patterned; they are…

Pattern Formation and Solitons · Physics 2009-11-11 L. Qiao , I. G. Kevrekidis , C. Punckt , H. H. Rotermund

This work focuses on the incoherent and coherent combination of pulsed laser beams, building on previous research [1] that addressed the combination of continuous-wave laser beams. For the pulsed combination, we have focused on the temporal…

Optics · Physics 2024-12-05 Hocine Djellout

Sensing periodic-fields using quantum sensors has been an active field of research. In many of these scenarios, the quantum state of the probe is flipped regularly by the application of $\pi$-pulses to accumulate information about the…

Quantum Physics · Physics 2025-11-19 Rozhin Yousefjani , Saif Al-Kuwari , Abolfazl Bayat

In rare-earth ion-doped crystals, inhomogeneous absorption profiles reflect the distribution of local environments experienced by individual ions. While each optical transition probes this distribution differently, their fine spectral…

Attenuated laser pulses are often employed in place for single photons in order to test the efficiency of the elements of a quantum network. In this work we analyse theoretically the dynamics of storage of an attenuated light pulse (where…

Quantum Physics · Physics 2019-11-11 Luigi Giannelli , Tom Schmit , Giovanna Morigi

Single-photon coherent optics represents a fundamental importance for the investigation of quantum light-matter interactions. While most work has considered the interaction in the steady-state regime, here we demonstrate that a…

Quantum Physics · Physics 2015-06-17 Shushan Petrosyan , Yuri Malakyan

We investigate the role of non-uniform spatial density profiles of trapped atomic Bose-Einstein condensates in the propagation of Raman-matched laser pulses under conditions for electromagnetically induced transparency (EIT). We find that…

Quantum Physics · Physics 2009-11-07 Özgür E. Müstecaplıoğlu , L. You

We investigated the preservation of information encoded into the relative phase and amplitudes of optical pulses during storage and retrieval in an optical memory based on stimulated photon echo. By interfering photon echoes produced in a…

A special shaping of YAG:Nd^{3+} laser beam profile has been found to improve homogeneity and T_c of YBa_2Cu_3O_{7-\delta} films being deposited by the pulsed laser. Targets of a considerably non-stoichiometric composition and substrates of…

Superconductivity · Physics 2007-05-23 Evgeny V. Pechen

Here we present the quantum storage of three-dimensional orbital-angular-momentum photonic entanglement in a rare-earth-ion-doped crystal. The properties of the entanglement and the storage process are confirmed by the violation of the…

Quantum Physics · Physics 2015-08-18 Zong-Quan Zhou , Yi-Lin Hua , Xiao Liu , Geng Chen , Jin-Shi Xu , Yong-Jian Han , Chuan-Feng Li , Guang-Can Guo

We present an architecture for remotely connecting cavity-coupled trapped ions via a quantum repeater based on rare-earth-doped crystals. The main challenge for its realization lies in interfacing these two physical platforms, which produce…

We study optical pulse propagation through a hollow-core fiber filled with a radially inhomogeneous cloud of cold atoms. A co-propagating control field establishes electromagnetically induced transparency. In analogy to a graded index…

Atomic Physics · Physics 2019-07-31 Roman Sulzbach , Thorsten Peters , Reinhold Walser

We provide a computational method for quickly determining the correct distribution of optically active nanoparticles for a desired response. This is achieved by simulating the optical response of single nanoparticles and performing a…

Optics · Physics 2019-01-03 Phillip Manley , Min Song , Sven Burger , Martina Schmid

We theoretically revisit the problem of the propagation of coherent light pulses through a linear medium when the carrier frequency of the pulses coincides with the minimum of a narrow dip in the medium transmission. Considering realistic…

Optics · Physics 2018-07-11 Bruno Macke , Bernard Ségard

Coherent responses of resonance atom layer to short optical pulse excitation are numerically considered. The inhomogeneous broadening of one-photon transition, the local field effect, and the substrate dispersion are involved into analysis.…

Optics · Physics 2015-06-26 Sergei O. Elyutin

Distortion free negative group velocity pulse propagation is demonstrated in a rare-earth-ion-doped-crystal (RE) through the creation of a carefully designed spectral absorption structure in the inhomogeneous profile of Eu:YSO and…

Pulse propagation is studied in an EIT medium with the control field having a periodically varying phase (chirp). Based both on numerical calculations and on an approximate approach neglecting absorption and nonadiabatic effects, it is…

Quantum Physics · Physics 2016-08-24 Andrzej Raczynski , Jaroslaw Zaremba , Sylwia Zielinska-Raczynska

We study coherent enhancement of Coulomb excitation of high energy particles in crystals. We develop multiple scattering theory description of coherent excitation which consistently incorporates both the specific resonant properties of…

High Energy Physics - Phenomenology · Physics 2009-10-30 V. R. Zoller

Rare-earth ion ensembles doped in single crystals are a promising materials system with widespread applications in optical signal processing, lasing, and quantum information processing. Incorporating rare-earth ions into integrated photonic…

Rare-earth-doped crystals are excellent hardware for quantum storage of optical information. Additional functionality of these materials is added by their waveguiding properties allowing for on-chip photonic networks. However, detection and…

Quantum Physics · Physics 2014-05-22 P. Siyushev , K. Xia , R. Reuter , M. Jamali , N. Zhao , N. Yang , C. Duan , N. Kukharchyk , A. D. Wieck , R. Kolesov , J. Wrachtrup