Topic

# Resonance

About: Resonance is a(n) research topic. Over the lifetime, 44602 publication(s) have been published within this topic receiving 711521 citation(s). The topic is also known as: Resonance.

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01 Jan 1963

Abstract: 1. Elements of Resonance.- 2 Basic Theory.- 3. Magnetic Dipolar Broadening of Rigid Lattices.- 4. Magnetic Interactions of Nuclei with Electrons.- 5. Spin-Lattice Relaxation and Motional Narrowing of Resonance Lines.- 6. Spin Temperature in Magnetism and in Magnetic Resonance.- 7. Double Resonance.- 8. Advanced Concepts in Pulsed Magnetic Resonance.- 9. Multiple Quantum Coherence.- 10. Electric Quadrupole Effects.- 11. Electron Spin Resonance.- 12. Summary.- Problems.- Appendixes.- A. A Theorem About Exponential Operators.- B. Some Further Expressions for the Susceptibility.- D. A Theorem from Perturbation Theory.- E. The High Temperature Approximation.- F. The Effects of Changing the Precession Frequency - Using NMR to Study Rate Phenomena.- G. Diffusion in an Inhomogeneous Magnetic Field.- H. The Equivalence of Three Quantum Mechanics Problems.- I. Powder Patterns.- J. Time-Dependent Hamiltonians.- K. Correction Terms in Average Hamiltonian Theory - The Magnus Expansion.- Selected Bibliography.- References.- Author Index.

4,860 citations

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TL;DR: The steep dispersion of the Fano resonance profile promises applications in sensors, lasing, switching, and nonlinear and slow-light devices.

Abstract: Since its discovery, the asymmetric Fano resonance has been a characteristic feature of interacting quantum systems. The shape of this resonance is distinctively different from that of conventional symmetric resonance curves. Recently, the Fano resonance has been found in plasmonic nanoparticles, photonic crystals, and electromagnetic metamaterials. The steep dispersion of the Fano resonance profile promises applications in sensors, lasing, switching, and nonlinear and slow-light devices.

3,211 citations

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01 Jan 1975

Abstract: Topics covered include: classical theory of resonance optics; the optical Bloch equations; two-level atoms in steady fields; pulse propagation; pulse propagation experiments; saturation phenomena; quantum electrodynamics and spontaneous emission; N-atom spontaneous emission and superradiant decay; and photon echoes. (GHT)

2,958 citations

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01 Jan 1961

Abstract: Preface 1. Introduction 2. Angular momentum and related matters 3. Electromagnetic radiation 4. The structure of free atoms and ions 5. Magnetic effects in atomic structure 6. Groups and their matrix representations 7. Complex ions 8. Crystal-field theory and the weak-field coupling scheme 9. The strong-filed coupling scheme 10. Paramagnetic susceptibilities 11. Optical spectra and thermodynamic properties 12. Paramagnetic resonance Appendices 1-9 Bibliography Indexes.

2,477 citations

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TL;DR: N nanometer-scale gold dipole antennas designed to be resonant at optical frequencies are fabricated, in contradiction to classical antenna theory but in qualitative accordance with computer simulations that take into account the finite metallic conductivity at optical frequency.

Abstract: We have fabricated nanometer-scale gold dipole antennas designed to be resonant at optical frequencies. On resonance, strong field enhancement in the antenna feed gap leads to white-light supercontinuum generation. The antenna length at resonance is considerably shorter than one-half the wavelength of the incident light. This is in contradiction to classical antenna theory but in qualitative accordance with computer simulations that take into account the finite metallic conductivity at optical frequencies. Because optical antennas link propagating radiation and confined/enhanced optical fields, they should find applications in optical characterization, manipulation of nanostructures, and optical information processing.

1,996 citations