he mission of the Department of Physics at UMBC is based on three pillars: education, research and service to society. We strive to provide outstanding educational opportunities, through instruction and research, for undergraduate physics majors seeking preparation for graduate school or entry into the workforce. We also aim to train graduate students to be leaders in their field of research. Our research goal is to grow and sustain internationally recognized research groups in atmospheric physics, astrophysics, condensed matter physics and quantum optics and information science. Through our teaching of physics to non-science and non-physics majors and through our Physics for Secondary Education Teachers program, we provide professional service to the university community and the State.

Recent Submissions

  • Efficiency of harmonic quantum Otto engines at maximal power 

    Deffner, Sebastian (2018-11-10)
    Recent experimental breakthroughs produced the first nano heat engines that have the potential to harness quantum resources. An instrumental question is how their performance measures up against the efficiency of classical ...
  • Stroboscopically Robust Gates For Capacitively Coupled Singlet-Triplet Qubits 

    Colmenar, R. K. L.; Kestner, J. P. (2018-10-09)
    Recent work on Ising-coupled double-quantum-dot spin qubits in GaAs with voltage-controlled exchange interaction has shown improved two-qubit gate fidelities from the application of oscillating exchange along with a strong ...
  • Non-thermal quantum engine in transmon qubits 

    Cherubim, Cleverson; Brito, Frederico; Deffner, Sebastian (2018-10-11)
    The design and implementation of quantum technologies necessitates the understanding of thermodynamic processes in the quantum domain. In stark contrast to macroscopic thermodynamics, at the quantum scale processes generically ...
  • Improving cloud optical property retrievals for partly cloudy pixels using coincident higher‐resolution single band measurements: A feasibility study using ASTER observations 

    Werner, F.; Zhang, Z.; Wind, G.; Miller, D.J.; Platnick, S.; Girolamo, L. Di (American Geophysical Union, 2018-10-09)
    Clear‐sky contamination is a challenging and long‐lasting problem for cloud optical thickness (τ) and effective droplet radius (rₑ𝒻𝒻) retrievals using passive satellite sensors. This study explores the feasibility of ...
  • ALL-OPTICAL NONLINEAR ACTIVATION FUNCTION FOR PHOTONIC NEURAL NETWORKS 

    Miscuglio, Mario; Mehrabian, Armin; Hu, Zibo; Azzam, Shaimaa I.; George, Jonathan; Kildishev, Alexander V.; Pelton, Matthew; Sorger, Volker J. (Optical Society of America, 2018)
    With the recent successes of neural networks (NN) to perform machine-learning tasks, photonic-based NN designs may enable high throughput and low power neuromorphic compute paradigms since they bypass the parasitic charging ...
  • A 4‐year zonal climatology of lower tropospheric CO₂ derived from ocean‐only Atmospheric Infrared Sounder observations 

    Strow, L. Larrabee; Hannon, Scott E. (American Geophysical Union, 2008-09-20)
    A 4‐year zonally averaged climatology of atmospheric CO₂, ocean only, between ±60° latitude has been derived from the Atmospheric Infrared Sounder (AIRS) radiances. Using only very clear fields of view, the CO₂ profile in ...
  • Two-year comparison of radiances from the Atmospheric Infrared Sounder (AIRS) and the Infrared Atmospheric Sounding Interferometer (IASI) 

    Elliott, Denis A.; Aumann, Hartmut H.; Strow, L. Larrabee; Hannon, Scott E. (Society of Photo-Optical Instrumentation Engineers (SPIE), 2009-08-12)
    The radiometric intercomparison of instruments is a key element in developing climate-quality data records. In this study we compare data from the first two years of the Infrared Atmospheric Sounding Interferometer (IASI) ...
  • Spectral calibration in hyperspectral sounders 

    Manning, Evan M.; Aumann, Hartmut H.; Deen, Robert G.; Jiang, Yibo; Strow, L. Larrabee; Hannon, Scott E. (Society of Photo-Optical Instrumentation Engineers (SPIE), 2009-08-21)
    It is widely accepted that the knowledge of the frequencies of the spectral response functions (SRF) of the channels of hyperspectral sounders at the 10 parts per million (ppm) of frequency level is adequate for the retrieval ...
  • An assessment of the tropical humidity‐temperature covariance using AIRS 

    Gambacorta, A.; Barnet, C.; Soden, B.; Strow, L. (American Geophysical Union, 2008-05-29)
    We investigate the horizontal and vertical structure of the covariance between water vapor and temperature in the tropical troposphere, using satellite measurements from the Atmospheric InfraRed Sounder (AIRS). Our analysis ...
  • An Analysis of NCEP Tropical Cyclone Vitals and Potential Effects on Forecasting Models 

    Trahan, Sam; Sparling, Lynn (American Meteorological Society, 2012-06-15)
    This study analyzes the Tropical Cyclone Vitals Database (TCVitals), which contains cyclone location, intensity, and structure information, generated in real time by forecasters. These data are used to initialize cyclones ...
  • A MULTIZONE MODEL FOR SIMULATING THE HIGH-ENERGY VARIABILITY OF TeV BLAZARS 

    Graff, Philip B.; Georganopoulos, Markos; Perlman, Eric S.; Kazanas, Demosthenes (The American Astronomical Society, 2008-08-12)
    We present a time-dependent multizone code for simulating the variability of synchrotron self-Compton (SSC) sources. The code adopts a multizone pipe geometry for the emission region, appropriate for simulating emission ...
  • Strong coupling and induced transparency at room temperature with single quantum dots and gap plasmons 

    Leng, Haixu; Szychowski, Brian; Daniel, Marie-Christine; Pelton, Matthew (2018 Springer Nature Limited, 2018-10-01)
    Coherent coupling between plasmons and transition dipole moments in emitters can lead to two distinct spectral effects: vacuum Rabi splitting at strong coupling strengths, and induced transparency (also known as Fano ...
  • Satellite- and ground-based CO total column observations over 2010 Russian fires: accuracy of top-down estimates based on thermal IR satellite data 

    Yurganov, L. N.; Rakitin, V.; Dzhola, A.; August, T.; Fokeeva, E.; George, M.; Gorchakov, G.; Grechko, E.; Hannon, S.; Karpov, A.; Ott, L.; Semutnikova, E.; Shumsky, R.; Strow, L. (Copernicus Publications on behalf of the European Geosciences Union, 2011-08-04)
    CO total column data are presented from three space sounders and two ground-based spectrometers in Moscow and its suburbs during the forest and peat fires that occurred in Central Russia in July–August 2010. Also presented ...
  • Infrared retrievals of dust using AIRS: Comparisons of optical depths and heights derived for a North African dust storm to other collocated EOS A‐Train and surface observations 

    DeSouza‐Machado, S.G.; Strow, L.L.; Imbiriba, B.; McCann, K.; Hoff, R.M.; Hannon, S.E.; Martins, J.V.; Tanré, D.; Deuzé, J.L.; Ducos, F.; Torres, O. (American Geophysical Union, 2010-08-03)
    [1] AIRS thermal infrared radiance data are used with a fast infrared scattering radiative transfer model to physically retrieve the dust column amount and dust height over both ocean and land. The retrieved optical depths ...
  • Improved agreement of AIRS tropospheric carbon monoxide products with other EOS sensors using optimal estimation retrievals 

    Warner, J. X.; Wei, Z.; Strow, L. L.; Barnet, C.D.; Sparling, L. C.; Diskin, G.; Sachse, G. (Copernicus Publications on behalf of the European Geosciences Union, 2010-10-08)
    We present in this paper an alternative retrieval algorithm for the Atmospheric Infrared Sounder (AIRS) tropospheric Carbon Monoxide (CO) products using the Optimal Estimation (OE) technique, which is different from the ...
  • Hyperspectral Earth Observation from IASI: Five Years of Accomplishments 

    Hilton, Fiona; Armante, Raymond; August, Thomas; Barnet, Chris; Bouchard, Aurelie; Camy-Peyret, Claude; Capelle, Virginie; Clarisse, Lieven; Clerbaux, Cathy; Coheur, Pierre-Francois; Collard, Andrew; Crevoisier, Cyril; Dufour, Gaelle; Edwards, David; Faijan, Francois; Fourrié, Nadia; Gambacorta, Antonia; Goldberg, Mitchell; Guidard, Vincent; Hurtmans, Daniel; Illingworth, Samuel; Jacquinet-Husson, Nicole; Kerzenmacher, Tobias; Klaes, Dieter; Lavanant, Lydie; Masiello, Guido; McNally, Anthony; Matricardi, Marco; Pavelin, Edward; Newman, Stuart; Payan, Sebastien; Péquignot, Eric; Peyridieu, Sophie; Phulpin, Thierry; Remedios, John; Schlüssel, Peter; Serio, Carmine; Strow, Larrabee; Stubenrauch, Claudia; Taylor, Jonathan; Tobin, David; Wolf, Walter; Zhou, Daniel (American Meteorological Society, 2012-03-01)
    The Infrared Atmospheric Sounding Interferometer (IASI) forms the main infrared sounding component of the European Organisation for the Exploitation of Meteorological Satellites's (EUMETSAT's) Meteorological Operation ...
  • Resolving the X-ray obscuration in a low flux observation of the quasar PDS 456 

    Reeves, James; Braito, Valentina; Nardini, Emanuele; Hamann, Fred; Chartas, George; Lobban, Andrew; O'Brien, Paul; Turner, Jane (2018-09-19)
    Simultaneous XMM-Newton, NuSTAR and HST observations, performed in March 2017, of the nearby (z=0.184 ) luminous quasar PDS 456 are presented. PDS 456 had a low X-ray flux compared to past observations, where the first of ...
  • Shortwave direct radiative effects of above-cloud aerosols over global oceans derived from 8 years of CALIOP and MODIS observations 

    Zhang, Zhibo; Meyer, Kerry; Yu, Hongbin; Platnick, Steven; Colarco, Peter; Liu, Zhaoyan; Oreopoulos, Lazaros (Copernicus Publications on behalf of the European Geosciences Union, 2016-03-04)
    In this paper, we studied the frequency of occurrence and shortwave direct radiative effects (DREs) of above-cloud aerosols (ACAs) over global oceans using 8 years (2007–2014) of collocated CALIOP and MODIS observations. ...
  • Third-Order Nonlinear Optical Properties of ALD Grown TiO₂ Films by Thermally Managed Z-scan Method 

    Basaldua, I.; Burkins, P.; Kuis, R.; Kropp, J. A.; Gougousi, T.; Johnson, A. M. (Optical Society of America, 2018)
    Thermally managed Z-scan performed on ALD grown TiO₂ films demonstrated n₂ values of 1.7×10⁻¹¹ and 1.94 × 10⁻¹⁰cm²/W for films grown at 100°C and 250°C, respectively – greater than 1000X that of other growth methods.
  • Frequency and causes of failed MODIS cloud property retrievals for liquid phase clouds over global oceans 

    Cho, Hyoun Myoung; Zhang, Zhibo; Meyer, Kerry; Lebsock, Matthew; Platnick, Steven; Ackerman, Andrew S.; Girolamo, Larry Di; Labonnote, Laurent C.; Cornet, Céline; Riedi, Jerome; Holz, Robert E. (American Geophysical Union (AGU), 2015-04-09)
    Moderate Resolution Imaging Spectroradiometer (MODIS) retrieves cloud droplet effective radius (rₑ) and optical thickness (τ) by projecting observed cloud reflectances onto a precomputed look‐up table (LUT). When observations ...

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