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Displaying 851 - 863 of 863

Evolution of the Shapes of InAs and InGaAs Quantum Dots

January 1, 2001
Author(s)
Richard P. Mirin, Alexana Roshko, M. van der Puijl, Andrew G. Norman
The exact shape of self-assembled quantum dots is still a controversial subject in the literature, despite the fact that this knowledge is of paramount importance for modeling the energy levels and electron wavefunctions in the quantum dots. We will

Wavelength standards for optical communications

January 1, 2001
Author(s)
Sarah L. Gilbert, William C. Swann, Tasshi Dennis
We review wavelength accuracy and calibration issues for wavelength division multiplexed (WDM) optical fiber communication and describe our work on wavelength calibration references. We have developed wavelength references for National Institute of

Compound semiconductor oxide antireflection coatings

May 15, 2000
Author(s)
K. J. Knopp, Richard Mirin, Kristine A. Bertness, Kevin L. Silverman, David H. Christensen
We report the development of high quality, broad-bandwidth, antireflection (AR) coatings using the low index provided by wet thermally oxidized Al 0.98Ga 0.02As. We address the design criteria, fabrication, and characterizations of AR coatings composed of

Vibrationally-Resolved Sum-Frequency Generation With Broad Bandwidth Infrared Pulses

October 15, 1998
Author(s)
Lee J. Richter, T Petralli-Mallow, John C. Stephenson
We present a novel procedure for vibrationally-resolved sum-frequency generation (SFG) in which a broad-bandwidth IR pulse is mixed with a narrow-bandwidth visible pulse. The resultant SFG spectrum is dispersed with a spectrograph and detected in parallel

Optical trapping of selected dielectric microparticles in air

Author(s)
Haesung Park, Thomas W. LeBrun
We demonstrate a method to trap a selected dielectric microparticle in air using radiation pressure from a single-beam gradient optical trap. Randomly scattered dielectric microparticles adhered to a glass substrate are momentarily detached using
Displaying 851 - 863 of 863
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