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Optical resonators are essential components of lasers and other wavelength-sensitive optical devices. A resonator is characterized by a set of modes, each with a resonant frequency ω and resonance width δω = 1/τ , where τ is the lifetime of a photon in the mode. In a cylindrical or spherical dielectric resonator, extremely long-lived resonances [1] are due… (More)

- D Stone, L B Smillie
- The Journal of biological chemistry
- 1978

The amino acid sequence of the large cyanogen bromide fragment (residues 11 to 127) derived from the NH2-terminal half of alpha-tropomyosin has been determined. This was achieved by automatic sequence analysis of the whole fragment as well as manual sequencing of fragments derived from tryptic digestion of the maleylated fragment and thermolytic, Myxobacter… (More)

Dielectric optical micro-resonators and micro-lasers represent a realization of a wavechaotic system, where the lack of symmetry in the resonator shape leads to nonintegrable ray dynamics. Modes of such resonators display a rich spatial structure, and cannot be classified through mode indices which would require additional constants of motion in the ray… (More)

- D Stone, V Darley-Usmar, D R Smith, V O'Leary
- Journal of molecular and cellular cardiology
- 1989

Reoxygenation of isolated rat cardiac myocytes following a period of hypoxia and substrate deprivation resulted in a 1.5-2-fold increase in the total Ca2+ content which could be inhibited by 1 microM antimycin A or ruthenium red (50% inhibition at 2.5 microM). This increase in Ca2+ content was not accompanied by any release of creatine kinase into the… (More)

The amino acid sequence of a trimethoprim-resistant dihydrofolate reductase (EC 1.5.1.3) specified by the R-plasmid R67 is described. The sequence was deduced from automatic and manual sequence analysis of the intact protein, the fragments produced by cyanogen bromide cleavage, and peptides derived from the largest cyanogen bromide fragment by digestion… (More)

By combining detailed imaging measurements at different tilt angles with simulations of ray emission from prolate deformed lasing micro-droplets, we conclude that the probability density for the lasing modes in a three-dimensional dielectric microcavity must reside in the chaotic region of the ray phase space. In particular, maximum emission from such… (More)

- T Jaglinski, D Kochmann, D Stone, R S Lakes
- Science
- 2007

We show that composite materials can exhibit a viscoelastic modulus (Young's modulus) that is far greater than that of either constituent. The modulus, but not the strength, of the composite was observed to be substantially greater than that of diamond. These composites contain bariumtitanate inclusions, which undergo a volume-change phase transformation if… (More)

Let G be a simple, undirected graph. A special network N, called a balanced network, is constructed from G such that maximum matchings and f-factors in G correspond to maximum flows in N. A max-balancedflow-min-balanced-cut theorem is proved for balanced networks. It is shown that Tutte’s Factor Theorem is equivalent to this network flow theorem, and that… (More)

We use the multi-mode lasing equations of Haken to analyze the stationary state lasing patterns of twodimensional dielectric microcavity lasers of different shape, including the circle and various smooth deformations of the circle. We find a generic increase in the power output with deformation which is relatively insensitive to the specific form of the… (More)

We demonstrate the existence of an interference contribution to the average magnetoconductance, G(B), of ballistic cavities and use it to test the semiclassical theory of quantum billiards. G(B) is qualitatively different for chaotic and regular cavities, an effect explained semiclassically by the differing classical distribution of areas. The magnitude of… (More)