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Cavity quantum electrodynamics, a central research field in optics and solid-state physics, addresses properties of atom-like emitters in cavities and can be divided into a weak and a strong coupling regime. For weak coupling, the spontaneous emission can be enhanced or reduced compared with its vacuum level by tuning discrete cavity modes in and out of(More)
The quality factor (Q), mode volume (V eff), and room-temperature lasing threshold of microdisk cavities with embedded quantum dots (QDs) are investigated. Finite element method simulations of standing wave modes within the microdisk reveal that V eff can be as small as 2(λ/n) 3 while maintaining radiation-limited Qs in excess of 10 5. Microdisks with a 2(More)
Polarized structure functions of the nucleon are of great interest both at high and at low Q 2 , since for both extremes rigorous sum rules have been formulated. The Ellis-Jaffe sum rule and the Björken sum rule for deep inelastic polarized lepton scattering at high Q 2 have been recently tested by several experiments, yielding some discrepancy between(More)
We propose to measure the magnetic form factor of the neutron using the 11 GeV electron beam in the upgraded CEBAF and CLAS12 detector. The measurement will cover the range Q 2 = 2 − 14 GeV 2. The neutron's magnetic form factor is one of the fundamental quantities of nuclear physics and its value is an important constraint for the newly-developed(More)
After the initial discovery of the so-called " spin crisis in the parton model " in the 1980s, a large set of polarization data in deep inelastic lepton-nucleon scattering was collected at labs like SLAC, DESY and CERN. More recently, new high precision data at large x and in the resonance region have come from experiments at Jefferson Lab. These data, in(More)
A technique is demonstrated which efficiently transfers light between a tapered standard single-mode optical fiber and a high-Q, ultra-small mode volume, silicon photonic crystal resonant cavity. Cavity mode quality factors of 4.7 × 10 4 are measured, and a total fiber-to-cavity coupling efficiency of 44% is demonstrated. Using this efficient cavity input(More)
Nucleon structure is one of the most fundamental issues in nuclear physics. Elastic electron scattering provides detailed information about the electromagnetic structure of the nucleon. The differential cross section for elastic electron-nucleon scattering in the one-photon-exchange approximation is given by the Rosenbluth formula [1] in which the nucleon(More)
The neutron longitudinal and transverse asymmetries A n 1 and A n 2 have been extracted from deep inelas-tic scattering of polarized electrons by a polarized 3 He target at incident energies of 19.42, 22.66 and 25.51 GeV. The measurement allows for the determination of the neutron spin structure functions g n 1 (x; Q 2) and g n 2 (x; Q 2) over the range(More)