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Fourier optics for wavefront engineering and wavelength control of lasers
(2014-02-25)
Since their initial demonstration in 1994, quantum cascade lasers (QCLs) have become prominent sources of mid-infrared radiation. Over the years, a large scientific and engineering effort has led to a dramatic improvement ...
Optics at interfaces: ultra-thin color coatings, perfect absorbers, and metasurfaces
(2014-02-25)
The vast majority of optical components and devices in use today can be grouped under the umbrella of ``bulk optics''; i.e. they generally have a non-negligible thickness compared to the wavelength of light. This is true ...
Plasmonics for surface-enhanced Raman scattering: from classical to quantum
(2014-06-06)
Metallic nanostructures that employ localized surface plasmon resonances to capture or radiate electromagnetic waves at optical frequencies are termed "plasmonic optical antennas". These structures enhance light-matter ...
Femtosecond laser direct writing of 3D metallic structures and 2D graphite
(2014-06-06)
This thesis explores a novel methodology to fabricate three dimensional (3D) metal-dielectric structures, and two dimensional (2D) graphite layers for emerging metamaterials and graphene applications. The investigations ...
Three-dimensional nanofabrication of silver structures in polymer with direct laser writing
(2014-06-06)
This dissertation describes methodology that significantly improves the state of femtosecond laser writing of metals. The developments address two major shortcomings: poor material quality, and limited 3D patterning ...
Imaging Pressure, Cells and Light Fields
(2014-06-06)
Imaging systems often make use of macroscopic lenses to manipulate light. Modern microfabrication techniques, however, have opened up a pathway to the development of novel arrayed imaging systems. In such systems, ...
Femtosecond-laser hyperdoping and texturing of silicon for photovoltaic applications
(2014-06-06)
This dissertation explores strategies for improving photolvoltaic efficiency and reducing cost using femtosecond-laser processing methods including surface texturing and hyperdoping. Our investigations focus on two aspects: ...
Optomechanics and nonlinear mechanics of suspended photonic crystal membranes
(2014-10-21)
The recent demonstration of strong interactions between optical force and mechanical motion of an optomechanical structure has led to the triumphant result of mechanical ground-state cooling, where the quantum nature of a ...