Imaging-based Parametric Resonance in an Optical Dipole Atom Trap

We report sensitive detection of parametric resonances in a high-density sample of ultracold $^{87}Rb$ atoms confined to a far-off-resonance optical dipole trap. Fluorescence imaging of the expanded ultracold atom cloud after a period of parametric excitation shows significant modification of the atomic spatial distribution and has high sensitivity compared with traditional measurements of parametrically-driven trap loss. Using this approach, a significant shift of the parametric resonance frequency is observed, and attributed to the anharmonic shape of the dipole trap potential

A scaling law for light scattering from dense and cold atomic ensembles

We calculate the differential cross section of polarized light scattering from a cold and dense atomic ensemble. The regularities in the transformation of the cross section when increasing the size of the atomic ensemble are analyzed numerically. We show that for typical experimental conditions, an approximate scaling law can be obtained. Very good agreement is found in a comparison with experimental data on the size dependence of a dense and cold cloud of 87$Rb atoms.Comment: Submitted to Journal of Modern Optics, Special issue on the Proceedings of the Colloquium on the Physics of Quantum Electronic

Understanding Occupational and Skill Demand in New Jersey's Health Care Industry

The health care industry in New Jersey employs almost 350,000 people. However, state, national, and international shortages of nurses is raising widespread concern in the industry. Jobs in the industry are changing in response to pressures to control costs and the demands of an increasingly consolidated industry. This report summarizes the skill, knowledge, and educational requirements of key health care occupations and identifies strategies for meeting the workforce challenges facing the industry

Understanding Occupational and Skill Demand in New Jersey's Utilities Industry

The utilities industry provides essential electricity, gas, water and sewer, and local telephone services to residents and businesses throughout New Jersey. This report summarizes the skill, knowledge, and educational requirements of key occupations in gas, electric, water and sewer, and telephone services. It also identifies strategies for meeting the workforce challenges facing the industry

Building Skills and Alliances to Meet Demand in New Jersey's Labor Market

This summary report examines the Ready for the Job initiatve, which profiled the skill and occupational requirements of 73 occupations in New Jersey. This report highlights four cross-industry demand skills: math and technology skills, problem solving and critical skills, communication and teamwork skills, and entrepreneurship and business skills

Understanding Occupational and Skill Demand in New Jersey's Finance Industry

The finance industry in New Jersey employs over 200,000 people. Many more workers benefit from the state's proximity to the finance industry in New York City. Jobs in the industry are evolving rapidly in response to national and global trends, such as deregulation, increasingly complex laws, and new technologies. As jobs change, skill requirements for both entry-level and incumbent workers increase. This report summarizes the skill, knowledge, and educational requirements of key finance occupations and identifies strategies for meeting the workforce challenges facing the industry

Ready for Tomorrow: Demand-Side Emerging Skills for the 21st Century

As part of the Ready for the Job demand-side skill assessment, the Heldrich Center explored emerging work skills that will affect New Jersey's workforce in the next three to five years. The Heldrich Center identified five specific areas likely to generate new skill demands: biotechnology, security, e-learning, e-commerce, and food/agribusiness. This report explores the study's findings and offers recommendations for improving education and training in New Jersey

Understanding Occupational and Skill Demand in New Jersey's Construction Industry

The construction industry is integral to New Jersey's economy, employing over 160,000 people. Nationally and in New Jersey, the construction industry is thriving, injecting billions of dollars into the state. Jobs in the industry are changing with an influx of new technology and new building materials, requiring that workers have more technical expertise than in the past. This report summarizes the skill, knowledge, and educational requirements of key construction occupations and identifies strategies for meeting the key workforce challenges facing the industry

Optical Manipulation of Light Scattering in Cold Atomic Rubidium

A brief perspective on light scattering in dense and cold atomic rubidium is presented. We particularly focus on the influence of auxiliary applied fields on the system response to a weak and nearly resonant probe field. Auxiliary fields can strongly disturb light propagation; in addition to the steady state case, dynamically interesting effects appear clearly in both the time domain, and in the optical polarization dependence of the processes. Following a general introduction, two examples of features found in such studies are presented. These include nonlinear optical effects in (a) comparative studies of forward- and fluorescence-configuration scattering under combined excitation of a control and probe field, and (b) manipulation of the spatial structure of the optical response due to a light shifting strong applied field

Vibration control of the beam of the future linear collider

This paper proposes a new approach for beam stabilization of the future Compact LInear Collider (CLIC). The method attempts to increase the efficiency of traditional methods. It is composed of a hybrid adaptive filtering algorithm that uses both feedback and adaptive control. The scheme uses an estimate of the prediction error to update the adaptive filter's parameters. The strategy of this method is described considering the process environment. The method efficiency is evaluated, and it is demonstrated that it provides high damping, fast vibration suppression, good robustness and easy realization thanks to the simplicity of the computations