Articles

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Projection of Diffraction Patterns for Use in Cold-Neutral-Atom Trapping (with Katharina Gillen-Christandl), Physical Review A (2010)

Scalar diffraction theory is combined with beam-propagation techniques to investigate the projection of near-field diffraction...

 

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Analytical Beam Propagation Model for Clipped Focused-Gaussian Beams Using Vector Diffraction Theory (with Christopher M. Seck and Shekhar Guha), Optics Express (2010)

Vector diffraction theory is applied to the case of focused TEM00 Gaussian beams passing through...

 

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Application of Hertz Vector Diffraction Theory to the Diffraction of Focused Gaussian Beams and Calculations of Focal Parameters (with Kendra Baughman and Shekhar Guha), Optics Express (2009)

Hertz vector diffraction theory is applied to a focused TEM00 Gaussian light field passing through...

 

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Temperature-dependent Refractive Index Measurements of Wafer-shaped InAs and InSb (with Chris DiRocco, Peter Powers, and Shekhar Guha), Applied Optics (2008)

An experimental method is introduced to measure the refractive index and its temperature dependence for...

 

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Vector Diffraction Theory of Refraction of Light by a Spherical Surface (with Shekhar Guha), Journal of the Optical Society of America B: Optical Physics (2007)

Focusing of light by a curved surface is described using the vector Kirchhoff diffraction theory....

 

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Description of Spherical Aberration and Coma of a Microlens Using Vector Diffraction Theory (with Shekhar Guha), Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE) (2006)

Light distributions of a plane wave refracted by a microlens are calculated using Kirchhoff vector...

 

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Optical Dipole Traps for Cold Atoms using Diffracted Laser Light (with Shekhar Guha and Katharina Christandl), Physical Review A (2006)

We theoretically investigate the feasibility of using intensity distributions of light of a single laser...

 

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Use of Michelson and Fabry–Perot Interferometry for Independent Determination of the Refractive Index and Physical Thickness of Wafers (with Shekhar Guha), Applied Optics (2005)

We present a method to independently measure the refractive index and the thickness of materials...

 

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Description of Light Propagation Through a Circular Aperture Using Nonparaxial Vector Diffraction Theory (with Shekhar Guha), Optics Express (2005)

Using nonparaxial vector diffraction theory derived using the Hertz vector formalism, integral expressions for the...

 

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Vector Diffraction Theory of Light Propagation Through Nanostructures (with Shekhar Guha), Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE) (2005)

It is well known that “vector” diffraction theory needs to be invoked to describe the...

 

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Modeling and Propagation of Near-Field Diffraction Patterns: A More Complete Approach (with Shekhar Guha), American Journal of Physics (2004)

We discuss the origins and regions of validity of various near-field diffraction models. The complete...

 

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Refractive-Index Measurements of Zinc Germanium Diphosphide at 300 and 77 K by Use of a Modified Michelson Interferometer (with Shekhar Guha), Applied Optics (2004)

A method to determine the absolute refractive index of materials available in the shape of...

 

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Application of Interferometric Wave Propagation for Refractive Index Measurements of Solids (with Shekhar Guha), 87th Optical Society of America Annual Meeting Proceedings: Tucson, AZ (2003)

The output signal of a modified Michelson interferometer with a flat-parallel sample, whose normal is...

 

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Analysis of Resonance Structure in the Above-Threshold Ionization Photoelectron Spectra of Magnesium (with L D. Van Woerkom), Physical Review A (2003)

Using high-resolution photoelectron spectroscopy and 120-fs, 800-nm Ti:sapphire laser pulses, we observe and analyze intensity-dependent...

 

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Enhanced Double Ionization with Circularly Polarized Light (with M A. Walker and L D. Van Woerkom), Physical Review A (2001)

Using 120-fs, 800-nm Ti:sapphire laser pulses, ionic yields of singly and doubly charged magnesium ions...

 

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Above‐Threshold Ionization As a Probe of Multielectron Physics (with L. D. Van Woerkom, M. J. Nando, M. A. Walker, and H. G. Muller), Laser Physics (2001)

The study of above-threshold ionization (ATI) is now over 20 years old and much has...

 

Presentations

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Description of Light Focusing by a Lens using Vector Diffraction Theory (with Shekhar Gaha), Society for Industrial and Applied Mathematics Conference Proceedings: Boston, MA (2006)

For a plane wave incident on a spherical lens at normal incidence, the field distributions...

 

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Calculations of Light Field Distributions Within and Beyond Wavelength-Scale Apertures, 89th Optical Society of America Annual Meeting Proceedings: Tucson, AZ (2005)
 

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Light Distributions in Front of a Circular Aperture, Evaluated Using Vector Diffraction Theory (with Shekhar Guha), 88th Optical Society of America Annual Meeting Proceedings: Rochester, NY (2005)

For a plane wave (having wavelength λ) incident on a circular aperture (radius a), the...

 

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Simplification of the Stratton-Chu Vector Diffraction Integrals and Application to Light Propagation through Curved Surfaces (with Shekhar Guha), 89th Optical Society of America Annual Meeting Proceedings: Tucson, AZ (2005)

The Stratton-Chu vector diffraction integrals are expressed in dimensionless forms and then numerically evaluated to...

 

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Sequential Interferometric Techniques for Measuring Independent Values of the Refractive Index and Material Thickness of Semiconductor Wafers (with Shekhar Guha), 88th Optical Society of America Annual Meeting Proceedings: Rochester, NY (2004)

A technique is presented using both Michelson and Fabry-Perot interferometry to independently measure the refractive...

 

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Electrical and Spectroscopic Studies of the Effects of DC Electric Fields on Pre-Mixed Propane-Air Flames (with S D. Marcum and B N. Ganguly), 41st Aerospace Sciences Meeting and Exhibit Conference Proceedings: Reno, Nevada (2003)

The effects of DC electric fields on temperature distributions within pre-mixed propane-air flames have been...

 

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Measurement of the Index of Refraction of a Flat Zinc Germanium Phosphide Wafer in the Infrared (with Shekhar Guha), Conference on Lasers and Electro-Optics 2003 Technical Digest (CLEO) (2003)

We have developed and tested a novel application of interferometry to determine the absolute refractive...