Physics 111 Advanced Laboratory. Professor Dmitry Budker This is the second of two videos accompanying the Non-Linear Spectroscopy and Magneto-Optics Experiment, providing students with an introduction to the theory, apparatus, and procedures. The experiment consists of three sections: (1) students learn to operate a diode laser system and characterize its performance using a Fabry-Perot spectrum analyzer, (2) Doppler-broadened laser-induced fluorescence and Doppler-free saturated absorption spectra of the rubidium D2 line (780 nm) are recorded and analyzed, and (3) the near-resonant magneto-optical rotation is investigated. Nonlinear light-atom interaction leads to spectacular manifestations of the resonant Faraday Effect - polarization plane rotation in a magnetic field applied along the direction of light propagation radically different from the linear case. In particular, narrow (~30 Hz) effective line widths are observed in this experiment corresponding to a rotation enhancement by some seven orders of magnitude compared to the linear Faraday rotation. http://advancedlab.org

"Managing Biosafety and Biodiversity in a Global World - EU, US, California and Comparative Perspectives" This workshop is the culmination of a two-year project examining the roles that California and the European Union play in defining the forefront of domestic and international environmental policy solutions. The goal of the project is to produce concrete, actionable policy recommendations to further regulatory cooperation between the EU, California and the US on transatlantic environmental issues, including climate change, chemicals policy, biosafety, water regulation, and biodiversity protection. As socioeconomic and environmental issues become increasingly integrated, innovative policy solutions are required to identify and address the complex nexus between society and environment. The project has developed a network of representatives from the US and the EU in academia, industry, the NGO-sector, and government. Sponsors: UC Berkeley IGS Center on Institutions and Governance, Leuven Centre for Global Governance Studies, Katholieke Universiteit Leuven, University of California Washington Center