Publications

Optical Imaging of Calcium Transients in Neurons and Pharyngeal Muscle of C. elegans

<i>Some Aspects of the Luminescence of Solids</i>

Optical properties of PbI-based perovskite structures

Optical Velocity Patterns, Velocity-Sensitive Neurons, and Space Perception: A Hypothesis

A hypothesis is put forward of how global patterns of optical flow, as discussed by Gibson, Johansson, and others, could be processed by relatively simple physiological mechanis...

Imaging and Time-Resolved Spectroscopy of Single Molecules at an Interface

Far-field microscopy was used to noninvasively measure the room-temperature optical properties of single dye molecules located on a polymer-air interface. Shifts in the fluoresc...

Adsorption of NH3 and NO2 molecules on carbon nanotubes

Adsorption of NH3 and NO2 molecules on semiconducting single-walled carbon nanotubes is investigated using density functional theory. Both NH3 and NO2 molecules are found to bin...

Electronic structure of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">MoSe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>,<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">MoS</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">WSe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>. II. The nature of the optical band gaps

From band-structure calculations it is shown that MoSe2, MoS2, and WSe2 are indirect-gap semiconductors. The top of the valence band is at the Γ point and the bottom of the cond...

Growth of nanotubes for probe microscopy tips

Strength and Ductility of Tied Concrete Columns

Short 12-in. (305 mm) square concrete columns with rectangular ties as confinement steel are tested under monotonic axial compression to failure. Land-deformation curves are pre...

Nonlinear optical glasses for ultrafast optical switches

In this paper we report degenerate four-wave-mixing measurements of the nonlinear coefficient of rutile and a number of optical glasses at 1.06 μm. We define a figure of merit w...

Decreases in Regional Cerebral Blood Flow with Normal Aging

Positron emission tomographic (PET) images of regional cerebral blood flow (rCBF) from 30 normal, resting volunteers aged 30 to 85 years were analysed to identify areas where rC...

Frequency locking in Josephson arrays: Connection with the Kuramoto model

The circuit equations for certain series arrays of Josephson junctions can be mapped onto a simple model originally introduced by Kuramoto [in Proceedings of the International S...