A program to evaluate dye lasers as high power, pulsed, visible light sources

Spectral emission of visible from Q switched dye laser

Testing and Evaluation of Photoelectrochemical Membranes: Cooperative Research and Development Final Report, CRADA Number CRD-08-313

This research work will be undertaken in close coordination with Synkera Technologies and in concurrence with the overall objectives of the Synkera DOE SBIR Phase II project. The subcontract is conditional on Synkera receiving the DOE Phase II SBIR award

Professor Nimmer Meets Professor Schauer (and Others): An Analysis of Definitional Balancing as a Methodology for Determining the Visible Boundaries of the First Amendment

This article examines definitional balancing as a methodology for determining the “visible boundaries of the First Amendment.” More specifically, it focuses on the Court’s use of definitional balancing, as a technique for drawing definitional lines within categories of speech, to distinguish between speech that is included within the First Amendment, and speech that is excluded so that it may be proscribed based on its content. Part II describes definitional balancing in Professor Nimmer’s terms. Part III discusses the Court’s application of definitional balancing and the issues raised by commentators

Ab initio calculation of the binding energy of impurities in semiconductors: Application to Si nanowires

We discuss the binding energy E_b of impurities in semiconductors within density functional theory (DFT) and the GW approximation, focusing on donors in nanowires as an example. We show that DFT succeeds in the calculation of E_b from the Kohn-Sham (KS) hamiltonian of the ionized impurity, but fails in the calculation of E_b from the KS hamiltonian of the neutral impurity, as it misses most of the interaction of the bound electron with the surface polarization charges of the donor. We trace this deficiency back to the lack of screened exchange in the present functionals

Nguyen v. INS and the Application of Intermediate Scrutiny to Gender Classifications: Theory, Practice, and Reality

The Supreme Court has articulated three theoretically different standards of review for determining whether government action has denied any person equal protection of the laws: rational basis, intermediate scrutiny, and strict scrutiny. One area of this tri-level jurisprudence that continues to be troublesome in practice is the application of intermediate scrutiny to gender classifications. Nguyen v. INS is significant because it is the first case in which all nine Justices unequivocally applied that standard in such a case. Nonetheless, the application of the standard remains problematic since the Court split five to four on its application to the facts. This article analyzes the gender cases and concludes, perhaps not surprisingly, that the verbalization of the standard intermediate scrutiny has had little effect on the decisions in the gender cases. In reality, the outcomes of the cases turn on how the individual Justices view the underlying facts. Those who view the classification as being based on legitimate differences between the genders generally vote to uphold it; those who view the classification as being based on stereotypical “overbroad generalizations about the talents, capacities, or preferences of males and females” generally vote to strike it down. In this regard the application of intermediate scrutiny in gender cases is in reality a form of rational basis review

The VLSI design of a single chip Reed-Solomon encoder

A design for a single chip implementation of a Reed-Solomon encoder is presented. The architecture that leads to this single VLSI chip design makes use of a bit serial finite field multiplication algorithm

Control of inhomogeneous atomic ensembles of hyperfine qudits

We study the ability to control d-dimensional quantum systems (qudits) encoded in the hyperfine spin of alkali-metal atoms through the application of radio- and microwave-frequency magnetic fields in the presence of inhomogeneities in amplitude and detuning. Such a capability is essential to the design of robust pulses that mitigate the effects of experimental uncertainty and also for application to tomographic addressing of particular members of an extended ensemble. We study the problem of preparing an arbitrary state in the Hilbert space from an initial fiducial state. We prove that inhomogeneous control of qudit ensembles is possible based on a semi-analytic protocol that synthesizes the target through a sequence of alternating rf and microwave-driven SU(2) rotations in overlapping irreducible subspaces. Several examples of robust control are studied, and the semi-analytic protocol is compared to a brute force, full numerical search. For small inhomogeneities, < 1%, both approaches achieve average fidelities greater than 0.99, but the brute force approach performs superiorly, reaching high fidelities in shorter times and capable of handling inhomogeneities well beyond experimental uncertainty. The full numerical search is also applied to tomographic addressing whereby two different nonclassical states of the spin are produced in two halves of the ensemble