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Physics: The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
 JoVE Applied Physics

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

1Department of Quantum Science, The Australian National University


JoVE 51184

This is an instructional paper to guide the construction and diagnostics of external cavity diode lasers (ECDLs), including component selection and optical alignment, as well as the basics of frequency reference spectroscopy and laser linewidth measurements for applications in the field of atomic physics.

 JoVE Editorial

An interview with Nobel laureate Roy Glauber, Physics 2005


JoVE 1535

The field of quantum optics rests on the work of Roy Glauber, who helped elucidate the nature of light as both particles and waves. In this candid interview, the Nobel prize-winning physicist shares his thoughts about this strange and unintuitive behavior of light, balancing fatherhood with an academic career, and working at Los Alamos National Laboratory, where he shockingly learned that he was helping to build The Bomb.

 JoVE Editorial

An Interview with Nobel Laureate Theodor Hansch, Physics 2005


JoVE 1537

Theodor Hänsch was a co-recipient of the 2005 Nobel Prize in Physics for "contributions to the development of laser-based precision spectroscopy, including the optical frequency comb." In this video, Hänsch explains "in a nutshell" the frequency comb, its theories, its many applications, and the breakneck pace of the research leading up to the Nobel Prize.

 JoVE Editorial

An Interview with Nobel Laureate Douglas Osheroff, Physics 1996


JoVE 1540

At extremely low temperatures, the molecules of certain fluids are able to flow without internal friction or resistance - a phenomenon know as superfluidity. In this interview, Nobel Laureate Douglas Osheroff (Physics 1996) describes the somewhat arduous quest to prove the predicted superfluid state of helium-3. He also shares his thoughts on mentoring undergraduates and his philosophy on getting the most out of graduate school.

 JoVE Applied Physics

Setting Limits on Supersymmetry Using Simplified Models

1Department of Physics and Astronomy, University College London, 2CERN, 3Physics Division, Lawrence Berkeley National Laboratories


JoVE 50419

This paper demonstrates a protocol for recasting experimental simplified model limits into conservative and aggressive limits on an arbitrary new physics model. Publicly available LHC experimental results can be recast in this manner into limits on almost any new physics model with a supersymmetry-like signature.

 JoVE Chemistry

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

1Chemical and Biomolecular Engineering Department, University of Houston


JoVE 51461

Confocal microscopy is used to image quiescent and flowing colloid-polymer mixtures, which are studied as model systems for attractive suspensions. Image analysis algorithms are used to calculate structural and dynamic metrics for the colloidal particles that measure changes due to geometric confinement.

 JoVE Applied Physics

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

1School of Physics and Astronomy, University of Leeds, 2Institute of Materials Research, University of Leeds, 3School of Chemistry, University of Edinburgh, 4Department of Chemical Engineering, Northeastern University, 5Department of Physics, Northeastern University


JoVE 50603

A method to prepare epitaxial layers of ordered alloys by sputtering is described. The B2-ordered FeRh compound is used as an example, as it displays a metamagnetic transition that depends sensitively on the degree of chemical order and the exact composition of the alloy.

 JoVE Applied Physics

Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition

1MESA+ Institute for Nanotechnology, University of Twente


JoVE 51547

Procedures are outlined to prepare segmented and coaxial nanowires via templated electrodeposition in nanopores. As examples, segmented nanowires consisting of Ag and ZnO segments, and coaxial nanowires consisting of a TiO2 shell and a Ag core were made. The nanowires were used in photocatalytic hydrogen formation experiments.

 JoVE Applied Physics

Spatial Separation of Molecular Conformers and Clusters

1Center for Free-Electron Laser Science, CFEL, DESY, 2Department of Physics, University of Hamburg, 3The Hamburg Center for Ultrafast Imaging, University of Hamburg


JoVE 51137

We present a technique that allows the spatial separation of different conformers or clusters present in a molecular beam. An electrostatic deflector is used to separate species by their mass-to-dipole moment ratio, leading to the production of gas-phase ensembles of a single conformer or cluster stoichiometry.

 JoVE Chemistry

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

1Physical Sciences Division, Pacific Northwest National Laboratory


JoVE 51344

Soft landing of mass-selected ions onto surfaces is a powerful approach for the highly-controlled preparation of novel materials. Coupled with analysis by in situ secondary ion mass spectrometry (SIMS) and infrared reflection absorption spectroscopy (IRRAS), soft landing provides unprecedented insights into the interactions of well-defined species with surfaces.

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