1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Detalles del recurso

Descripción

Two-dimensional van der Waals materials have recently been introduced into the field of nanophotonics, creating opportunities to explore novel physics and realize first-of-their kind devices. By reducing the thickness of these materials, novel optical properties emerge due to the introduction of vertical quantum confinement. Unlike most materials, which suffer from a reduction in quality as they are thinned, layered van der Waals materials have naturally passivated surfaces that preserve their performance in monolayer form. Moreover, because the thickness of these materials is below typical charge carrier screening lengths, it is possible to actively control their optical properties with an external gate voltage. By combining these unique properties with the subwavelength control of light-matter interactions provided by nanophotonics, new device architectures can be realized.

In this thesis, we explore van der Waals materials for active infrared nanophotonics, focusing on monolayer graphene and few-layer black phosphorus. Chapter 2 introduces gate-tunable graphene plasmons that interact strongly with their environment and can be combined with an external cavity to reach large absorption strengths in a single atomic layer. Chapter 3 builds on this, using graphene plasmons to control the spectral character and polarization state of thermal radiation. In Chapter 4, we complete the story of actively controlling infrared light using graphene-based structures, introducing graphene into a resonant gold structure to enable active control of phase. By combining these resonant structures together into a multi-pixel array, we realize an actively tunable meta-device for active beam steering in the infrared. In Chapters 5 and 6, we present few layer black phosphorus (BP) as a novel material for active infrared nanophotonics. We study the different electro-optic effects of the material from the visible to mid-infrared. We additionally examine the polarization-dependent response of few-layer BP, observing that we can tune its optical response from being highly anisotropic to nearly isotropic in plane. Finally, Chapter 7 comments on the challenges and opportunities for graphene- and BP-integrated nanophotonic structures and devices.


Pertenece a

CaltechTHESIS  

Autor(es)

Sherrott, Michelle Caroline - 

Id.: 70961825

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Tipo de recurso: Thesis  -  NonPeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://resolver.caltech.edu/CaltechTHESIS:01262018-171457982
[References] https://thesis.library.caltech.edu/10649/

Fecha de contribución: 06-mar-2018

Contacto:

Localización:
* Sherrott, Michelle Caroline (2018) Active Infrared Nanophotonics in van der Waals Materials. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/Z9J964M8. http://resolver.caltech.edu/CaltechTHESIS:01262018-171457982

Otros recursos que te pueden interesar

  1. Effects of dispersed Bonny Light crude oil on water quality parameters in tanks containing Oreochromis niloticus The physico-chemical characteristics of water samples contaminated with a mixture of the water accom...
  2. Impact of water hyacinth (Eichhornia crassipes) on fish catch in the lower Taylor Creek area of Bayelsa State The aim of the study was to access the impact of water hyacinth, Eichhornia crassipes on fish catch ...
  3. Typha latifolia infestation and fish species migration in Hadejia Nguru wetland The river was divided into two, within each sampling station. Open water and Typha latifolia infeste...
  4. Impact of climate change on brackish water aquaculture development in the coastal areas of the Niger Delta The issue of climate change has generated a lot of concern among the general public in Niger Delta r...
  5. Efficiency of different traps for silver catfish fishery and its aquaculture implications in the face of climate change Climate change has the potential to severely impact coastal and inland environments and ecosystems, ...

Otros recursos de la mismacolección

  1. Unobserved Heterogeneity in Observational Studies of Political Behavior

    This dissertation comprises three chapters dealing with unobserved heterogeneity in observational...

  2. On the Origin of Scales and Scaling Laws in Star Formation

    Stars are the fundamental objects of astrophysics and their formation is a key process that influ...

  3. Antiferromagnetic Quantum Phase Transitions: Continuous Tuning and Direct Probes of Competing States

    Antiferromagnets are choice systems to study quantum critical behavior. Unlike ferromagnets, they...

  4. The Kapustin-Witten Equations with Singular Boundary Conditions

    Witten proposed a fasinating program interpreting the Jones polynomial of knots on a 3-manifold b...

  5. Towards a Theory of Quantum Gravity Through Geometrization of Quantum Mechanics

    In this thesis, we adapt an approach by assuming quantum mechanics as a fundamental theory of nat...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.