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Selected Works

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Atomic, Molecular and Optical Physics

Articles 1 - 15 of 15

Full-Text Articles in Physics

Self-Assembly Of Helical Ribbons, Yevgeniya V. Zastavker, Neer Asherie, Aleksey Lomakin, Jayanti Pande, Joanne M. Donovan, Joel M. Schnur, George B. Benedek Jun 2012

Self-Assembly Of Helical Ribbons, Yevgeniya V. Zastavker, Neer Asherie, Aleksey Lomakin, Jayanti Pande, Joanne M. Donovan, Joel M. Schnur, George B. Benedek

Yevgeniya V. Zastavker

The self-assembly of helical ribbons is examined in a variety of multicomponent enantiomerically pure systems that contain a bile salt or a nonionic detergent, a phosphatidylcholine or a fatty acid, and a steroid analog of cholesterol. In almost all systems, two different pitch types of helical ribbons are observed: high pitch, with a pitch angle of 54 ± 2°, and low pitch, with a pitch angle of 11 ± 2°. Although the majority of these helices are right-handed, a small proportion of left-handed helices is observed. Additionally, a third type of helical ribbon, with a pitch angle in the range …

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Ultrashort Pulse Propagation And Multi-Chromatic Ionization In Dielectrics, Jeremy Gulley May 2012

Ultrashort Pulse Propagation And Multi-Chromatic Ionization In Dielectrics, Jeremy Gulley

Jeremy R. Gulley

No abstract is currently available.

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Nonlinear Ultrashort Pulse Propagation And Multi-Chromatic Ionization In Bulk Dielectrics, Jeremy Gulley Mar 2012

Nonlinear Ultrashort Pulse Propagation And Multi-Chromatic Ionization In Bulk Dielectrics, Jeremy Gulley

Jeremy R. Gulley

No abstract is currently available.

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Material Damage From Ultrashort Bursts Of Light, Jeremy Gulley Oct 2008

Material Damage From Ultrashort Bursts Of Light, Jeremy Gulley

Jeremy R. Gulley

No abstract is currently available.

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Modeling Plasma Induced Dispersion In A Nonlinear Schrödinger Equation, Jeremy Gulley, William Dennis Feb 2008

Modeling Plasma Induced Dispersion In A Nonlinear Schrödinger Equation, Jeremy Gulley, William Dennis

Jeremy R. Gulley

Ultrafast laser pulse propagation in dielectrics is often modeled by a modified nonlinear Schrödinger equation (NLSE). At laser intensities sufficient to cause ionization, a plasma term can be included in the modified NLSE to account for free-carrier optical effects. This term is linear in the field and may be calculated from the classical Drude theory. We explore the consequences of a newly developed method for including dispersion relations of the plasma term as predicted by the Drude theory into the framework of the modified NLSE. The plasma induced dispersion terms can be shown to strongly effect ultrashort pulse evolution through …

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Simulation Of Ultrashort Laser Pulses In Nonlinear Media, Jeremy Gulley Sep 2006

Simulation Of Ultrashort Laser Pulses In Nonlinear Media, Jeremy Gulley

Jeremy R. Gulley

No abstract is currently available.

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Real-Time Measurements On Electron Plasma Response In Dielectrics Under Influence Of Ultrafast Laser Radiation, Sebastian Winkler, Jeremy Gulley, Igor Burakov, Razvan Stoian, Nadezhda Bulgakova, Anton Husakou, Alexandre Mermillod-Blondin, Arkadi Rosenfeld, David Ashkenasi, Ingolf Hertel, William Dennis Aug 2006

Real-Time Measurements On Electron Plasma Response In Dielectrics Under Influence Of Ultrafast Laser Radiation, Sebastian Winkler, Jeremy Gulley, Igor Burakov, Razvan Stoian, Nadezhda Bulgakova, Anton Husakou, Alexandre Mermillod-Blondin, Arkadi Rosenfeld, David Ashkenasi, Ingolf Hertel, William Dennis

Jeremy R. Gulley

No abstract is currently available.

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Simulation Of Ultrashort Laser Pulse Propagation With High-Order Dispersion, Raman Scattering, And Shock Formation, Jeremy Gulley, Erik Zeek, William Dennis Sep 2005

Simulation Of Ultrashort Laser Pulse Propagation With High-Order Dispersion, Raman Scattering, And Shock Formation, Jeremy Gulley, Erik Zeek, William Dennis

Jeremy R. Gulley

No abstract is currently available.

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Chapter 12 - Part Ii: A New Way Of Thinking About Achieving And Preserving Peace, Raymond Wilson Mar 2005

Chapter 12 - Part Ii: A New Way Of Thinking About Achieving And Preserving Peace, Raymond Wilson

Raymond Wilson

A concise, clearly written, and comprehensive guide to nuclear science and technology. It is especially valuable in providing a scientifically sound foundation for the many social concerns unleashed by nuclear technology.

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Simulation Of High Intensity Laser Pulse Propagation Through Optical Systems, Jeremy Gulley, Erik Zeek, William Dennis Sep 2004

Simulation Of High Intensity Laser Pulse Propagation Through Optical Systems, Jeremy Gulley, Erik Zeek, William Dennis

Jeremy R. Gulley

No abstract is currently available.

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Deep Tissue Imaging Approaches By Direct Capture Of Two-Photon Absorptionmacro To Nano, T. Ye, W. Wagner, Peifang Tian, G. Yurtsever, M. Fischer, W. Wagner Dec 2003

Deep Tissue Imaging Approaches By Direct Capture Of Two-Photon Absorptionmacro To Nano, T. Ye, W. Wagner, Peifang Tian, G. Yurtsever, M. Fischer, W. Wagner

Peifang Tian

No abstract provided.

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Direct And Sensitive Measurement Of Two-Photon Absorption Cross Sections, Peifang Tian, D. Keusters, Warren Warren Apr 2002

Direct And Sensitive Measurement Of Two-Photon Absorption Cross Sections, Peifang Tian, D. Keusters, Warren Warren

Peifang Tian

Summary form only given. We present a direct method to detect weak two-photon absorption (TPA) signals. As a proof of principle, we have measured the TPA cross section δ for rhodamine 6G (R6G) in methanol and obtained a value which agrees with other results. The technique may be very useful in biomedical imaging.

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Photolithographic Patterning Of Vacuum-Deposited Organic Light Emitting Devices, Peifang Tian, P. Burrows, B. Bulovic, S. Forrest Dec 1997

Photolithographic Patterning Of Vacuum-Deposited Organic Light Emitting Devices, Peifang Tian, P. Burrows, B. Bulovic, S. Forrest

Peifang Tian

No abstract provided.

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Fourier Series And Optical Transform Techniques In Contemporary Optics: An Introduction, Raymond Wilson, Sean Mccreary Apr 1995

Fourier Series And Optical Transform Techniques In Contemporary Optics: An Introduction, Raymond Wilson, Sean Mccreary

Raymond Wilson

An extensively illustrated introduction to Fourier transform methods containing 280+ figures which demonstrate in 3-space the numerous basic functions of optical diffraction and imaging. Covers the mathematical terminology for wave phenomena with emphasis on spatial frequency terms. The relationship between Fraunhofer diffraction by two-dimensional functions, the Fourier transform in 3-space and use of the convolution theorem are among the subjects discussed.

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Ionic Polishing Of Fused Silica And Glass, Raymond Wilson Dec 1969

Ionic Polishing Of Fused Silica And Glass, Raymond Wilson

Raymond Wilson

This paper reviews research in the erosion of fused silica and glass in an effort to gain a better understanding of the ionic polishing process as applied to optical materials. Erosion rates depend on ion mass, ion energy, target temperature, angle of incidence, and target material, and can also depend on vacuum pressure. The paper also considers other effects that accompany ionic bombardment of insulators, such as nature of the eroded surface, contaminate films, surface layer alterations, secondary electron emission, and gas trapping and release.

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