Now showing items 2300-2319 of 18256

    • Coherent Anti-Stokes Raman Scattering Microscopy: Chemical Imaging for Biology and Medicine 

      Evans, Conor L.; Xie, Xiaoliang Sunney (Annual Reviews, 2008)
      Coherent anti-Stokes Raman scattering (CARS) microscopy is a label-free imaging technique that is capable of real-time, nonperturbative examination of living cells and organisms based on molecular vibrational spectroscopy. ...
    • Coherent Compton Effect 

      Golovchenko, Jene Andrew; Kaplan, D. R.; Kincaid, B.; Levesque, R.; Meixner, A.; Robbins, M. F.; Felsteiner, J. (American Physical Society (APS), 1981)
      Interference effects have been observed when coherently related x-ray beams are Compton scattered from an atomic system. We use dynamical diffraction methods to prepare the initial x-ray state and observe the coherent ...
    • Coherent Control of Optical Information With Matter Wave Dynamics 

      Ginsberg, Naomi S.; Garner, Sean R.; Hau, Lene Vestergaard (Nature Publishing Group, 2007)
      In recent years, significant progress has been achieved in manipulating matter with light, and light with matter. Resonant laser fields interacting with cold, dense atom clouds provide a particularly rich system. Such light ...
    • Coherent Coupling of Multiple Transverse Modes in Quantum Cascade Lasers 

      Yu, Nanfang; Diehl, Laurent; Cubukcu, Ertugrul; Bour, David; Corzine, Scott; Hoefler, Gloria; Wojcik, Aleksander K.; Crozier, Kenneth B.; Belyanin, Alexey; Capasso, Federico (American Physical Society, 2009)
      Quantum cascade lasers are a unique laboratory for studying nonlinear laser dynamics because of their high intracavity intensity, strong intersubband optical nonlinearity, and an unusual combination of relaxation time ...
    • Coherent Dynamics of Mixed Frenkel and Charge-Transfer Excitons in Dinaphtho[2,3-b:2′3′-f]thieno[3,2-b]-thiophene Thin Films: The Importance of Hole Delocalization 

      Fujita, Takatoshi; Atahan-Evrenk, Sule; Sawaya, Nicolas Per Dane; Aspuru-Guzik, Alan (American Chemical Society (ACS), 2016)
      Charge-transfer states in organic semiconductors play crucial roles in processes such as singlet fission and exciton dissociation at donor/acceptor interfaces. Recently, a time-resolved spectroscopy study of dinaphtho[2, ...
    • Coherent Exciton Dynamics in Supramolecular Light-Harvesting Nanotubes Revealed by Ultrafast Quantum Process Tomography 

      Yuen-Zhou, Joel; Arias, Dylan H.; Eisele, Dorthe M.; Steiner, Colby P.; Krich, Jacob J.; Bawendi, Moungi G.; Nelson, Keith A.; Aspuru-Guzik, Alan (American Chemical Society (ACS), 2014)
      Long-lived exciton coherences have been recently observed in photosynthetic complexes via ultrafast spectroscopy, opening exciting possibilities for the study and design of coherent exciton transport. Yet, ambiguity in the ...
    • Coherent instabilities in a semiconductor laser with fast gain recovery 

      Wang, Christine Y.; Diehl, L.; Gordon, A.; Jirauschek, C.; Kärtner, F. X.; Belyanin, A.; Bour, D.; Corzine, S.; Höfler, G.; Troccoli, M.; Faist, J.; Capasso, Federico (American Physical Society, 2007)
      We report the observation of a coherent multimode instability in quantum cascade lasers (QCLs), which is driven by the same fundamental mechanism of Rabi oscillations as the elusive Risken-Nummedal-Graham-Haken (RNGH) ...
    • Coherent Nonlinear Optical Imaging: Beyond Fluorescence Microscopy 

      Min, Wei; Freudiger, Christian Wilhelm; Lu, Sijia; Xie, Xiaoliang Sunney (Annual Reviews, 2011)
      The quest for ultrahigh detection sensitivity with spectroscopic contrasts other than fluorescence has led to various novel approaches to optical microscopy of biological systems. Coherent nonlinear optical imaging, ...
    • Coherent nonlinear optics with quantum cascade structures 

      Belyanin, Alexey; Xie, Feng; Liu, Debin; Capasso, Federico; Troccoli, Mariano (Taylor & Francis, 2005)
      We discuss several coherent nonlinear optical phenomena that occur in active quantum-cascade (QC) structures that support both laser action and, at the same time, nonlinear self-conversion of laser light into coherent ...
    • Coherent Optical Transitions in Implanted Nitrogen Vacancy Centers 

      Chu, Y.; de Leon, Nathalie Pulmones; Shields, B.J.; Hausmann, B.; Evans, R.; Togan, E.; Burek, Michael John; Markham, M.; Stacey, A.; Zibrov, Alexander S; Yacoby, Amir; Twitchen, D.J.; Loncar, Marko; Park, H.; Maletinsky, P.; Lukin, Mikhail D. (American Chemical Society (ACS), 2014)
      We report the observation of stable optical transitions in nitrogen-vacancy (NV) centers created by ion implantation. Using a combination of high temperature annealing and subsequent surface treatment, we reproducibly ...
    • Coherent Quantum Optical Control with Subwavelength Resolution 

      Gorshkov, Alexey Vyacheslavovich; Jiang, Liang; Greiner, Markus; Zoller, Peter; Lukin, Mikhail D. (American Physical Society, 2008)
      We suggest a new method for quantum optical control with nanoscale resolution. Our method allows for coherent far-field manipulation of individual quantum systems with spatial selectivity that is not limited by the wavelength ...
    • Coherent Radiation by a Spherical Medium of Resonant Atoms 

      Prasad, Sudhakar; Glauber, Roy J. (American Physical Society, 2010)
      Radiation by the atoms of a resonant medium is a cooperative process in which the medium participates as a whole. In two previous papers we treated this problem for the case of a medium having slab geometry, which, under ...
    • Coherent Resonant Millennial-Scale Climate Oscillations Triggered by Massive Meltwater Pulses 

      Timmermann, Axel; Gildor, Hezi; Michael, Schulz; Tziperman, Eli (American Meteorological Society, 2003)
      The role of mean and stochastic freshwater forcing on the generation of millennial-scale climate variability in the North Atlantic is studied using a low-order coupled atmosphere–ocean–sea ice model. It is shown that ...
    • Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit 

      Kolkowitz, Shimon Jacob; Bleszynski Jayich, A. C.; Unterreithmeier, Quirin; Bennett, S. D.; Rabl, P.; Harris, J. G. E.; Lukin, Mikhail D. (American Association for the Advancement of Science (AAAS), 2012)
      Mechanical systems can be influenced by a wide variety of small forces, ranging from gravitational to optical, electrical, and magnetic. When mechanical resonators are scaled down to nanometer-scale dimensions, these forces ...
    • Coherent Spin Manipulation in an Exchange-Only Qubit 

      Laird, Edward A.; Taylor, Jacob Mason; Di Vincenzo, David P.; Marcus, Charles Masamed; Hanson, Micah P.; Gossard, Arthur C. (American Physical Society, 2010)
      Initialization, two-spin coherent manipulation, and readout of a three-spin qubit are demonstrated using a few-electron triple quantum dot. The three-spin qubit is designed to allow all operations for full qubit control ...
    • Coherent, Mechanical Control of a Single Electronic Spin 

      Hong, Sungkun; Grinolds, Michael Sean; Maletinsky, Patrick; Walsworth, Ronald L.; Lukin, Mikhail D.; Yacoby, Amir (American Chemical Society (ACS), 2012)
      We demonstrate coherent quantum control of a single spin driven by the motion of a mechanical resonator. The motion of a mechanical resonator is magnetically coupled to the electronic spin of a single nitrogen-vacancy ...
    • Coherent-Population-Trapping Resonances with Linearly Polarized Light for All-Optical Miniature Atomic Clocks 

      Zibrov, Sergei A.; Novikova, Irina; Phillips, David F.; Walsworth, Ronald Lee; Zibrov, Alexander S; Velichansky, Vladimir L.; Taichenachev, Alexey V.; Yudin, Valery I. (American Physical Society (APS), 2010)
      We present a joint theoretical and experimental characterization of the coherent population trapping (CPT) resonance excited on the \(D_1\) line of \(^{87}Rb\) atoms by bichromatic linearly polarized laser light. We observe ...
    • Coherentism via Graphs 

      Berker, Selim (Wiley-Blackwell, 2015)
    • Cohesin-dependent globules and heterochromatin shape 3D genome architecture in S. pombe 

      Mizuguchi, Takeshi; Fudenberg, Geoffrey; Mehta, Sameet; Belton, Jon-Matthew; Taneja, Nitika; Folco, Hernan Diego; FitzGerald, Peter; Dekker, Job; Mirny, Leonid; Barrowman, Jemima; Grewal, Shiv I. S. (2015)
      Eukaryotic genomes are folded into three-dimensional structures, such as self-associating topological domains, the borders of which are enriched in cohesin and CCCTC-binding factor (CTCF) required for long-range interactions1-7. ...
    • Cohesive Traction-Separation Laws for Tearing of Ductile Metal Plates 

      Nielsen, K. L.; Hutchinson, John W. (Elsevier, 2012)
      The failure process ahead of a mode I crack advancing in a ductile thin metal plate or sheet produces plastic dissipation through a sequence of deformation steps that include necking well ahead of the crack tip and shear ...