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Peer Instuction: Stimulating Renewed Interest in Physics and Other Engineering Courses

Presentation

Peer Instuction: Stimulating Renewed Interest in Physics and Other Engineering Courses

Presentation

Do students learn more from some demonstrations than others?

Presentation

Peer Instruction in Introductory Physics: A Method to Bring About Positive Changes in Students’ Attitudes and Beliefs

Journal Article

This paper analyzes pre-post matched gains in the epistemological views of science students taking the introductory physics course at Beijing Normal University (BNU) in China. In this study we examined the attitudes and beliefs of science majors (n = 441)...

Ultrafast Laser Processing Of Materials: A Review

Journal Article

We present an overview of the different processes that can result from focusing an ultrafast laser light in the femtosecond–nanosecond time regime on a host of materials, e.g., metals, semiconductors, and insulators. We summarize the physical processes...

Multiplex pure rotational coherent anti-Stokes Raman spectroscopy in a molecular beam

Journal Article

Pure rotational coherent anti-Stokes Raman spectroscopy using a single broadband dye-laser has been applied to study rotational energy distribution of molecules in a pulsed supersonic beam. The multiplex BOXCARS configuration allows accurate determination...

From black silicon to photovoltaic cells, using short pulse lasers

Conference Paper

Laser created Black Silicon has been developed since 1998 at Harvard University. The unique optical and semiconducting properties of the black silicon first lead to interesting applications for sensors (photodetectors, thermal imaging cameras…). Other...

Temperature dependence of photoluminescence in non-crystalline silicon

Conference Paper

Crystalline silicon being ubiquitous throughout the microelectronics industry has an indirect bandgap, and therefore is incapable of light emission. However, strong room temperature visible and near-IR luminescence from non-crystalline silicon, e.g...

Evolution of Femtosecond Laser-Induced Surface Ripples on Lithium Niobate Crystal Surfaces

Journal Article

We fabricated periodic ripple structures on the surface of a lithium niobate crystal by irradiation with femtosecond laser pulses and observed the evolution of these structures under irradiation with successive laser pulses. After just a few laser pulses...

The interaction of infrared radiation with isolated molecules: intramolecular nonequilibrium

Conference Paper

Anti-Stokes signals from various modes of isolated, infrared multiple photon excited molecules are measured to determine the intramolecular distribution of vibrational energy. This paper presents results for CF2HCl, CF2Cl 2, SF6 and 1,1-p;C2H 4F2. All but...

Senftleben-Beenakker effects in diffusing and heat conducting gas mixtures

Conference Paper

The influence of an external field on the transport phenomena in polyatomic gases leads to detailed information about the kinetic theory of such gases. In particular, a magnetic field gives rise to transverse transport, perpendicular to both the...

Black silicon for photovoltaic cells: towards a high-efficiency silicon solar cell

Conference Paper

Laser-created Black Silicon has been developed since 1998 at Harvard University. The unique optical and semiconducting properties of black silicon first led to interesting applications for sensors (photodetectors, thermal imaging cameras, etc.) Other...