Browsing by Contributor "Koppens, Frank"
Now showing items 1-14 of 14
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Characterization and implementation of resistance-to-time-to-digital readout system for novel photoresistor based on graphene
(Universitat Politècnica de Catalunya, 2017-09-07)
Master thesis
Restricted access - confidentiality agreement -
Detection of graphene motion through light-matter interactions
(Universitat Politècnica de Catalunya, 2012-09-06)
Master thesis
Open Access[ANGLÈS] In this thesis, we study both experimentally and theoretically the optical detection of the motion of graphene membranes based on fluorescence quenching of the emitters close to graphene. Fluorescence quenching ... -
Diffuse reflectance spectroscopy characterization of molecular absorption via graphene based photodetectors
(Universitat Politècnica de Catalunya, 2018-09)
Master thesis
60 months embargoThis Master dissertation explores diffuse reflection spectroscopy as a viable tool for analytical chemistry, both quantitatively and qualitatively. In-vitro optical phantoms are created to mimic the turbid diffuse environments ... -
Exploring flatland nano-optics with graphene plasmons
(Universitat Politècnica de Catalunya, 2017-05-11)
Doctoral thesis
Open AccessPlasmons are charge oscillations coupled to electromagnetic radiation. One of their most intriguing properties is their deep subwavelength confinement resulting in strongly enhanced light-matter interaction. Metal plasmons ... -
Exploring intersubbands in 2D materials
(Universitat Politècnica de Catalunya, 2019-04-16)
Doctoral thesis
Open AccessTransition metal dichalcogenides (TMDs) are semiconducting layered materials that can be isolated up to the limit of a single atomic layer. Next to graphene, they are some of the most intensively studied materials within ... -
Fabrication and characterization of graphene nanostructures
(Universitat Politècnica de Catalunya, 2012-09-06)
Master thesis
Open Access[ANGLÈS] We fabricate graphene nanostructures for experimental studies on graphene plasmonics and graphene-quantum dot interactions. We use a focused ion beam to mill structures in a substrate, and deposit graphene on top. ... -
Graphene optoelectronics from the visible to the mid-infrared
(Universitat Politècnica de Catalunya, 2015-12-04)
Doctoral thesis
Open AccessSince its discovery in 2004, graphene, a one-atom-thick layer of carbon atoms arranged in a hexagonal lattice, has attracted huge interest from the scientific community due to its extraordinary electronic, mechanical, and ... -
Intergration of graphene with mid-IR optical materials
(Universitat Politècnica de Catalunya, 2019-09-10)
Master thesis
Restricted access - author's decision -
Photoconductivity in High-Quality Graphene
(Universitat Politècnica de Catalunya, 2015-09-08)
Master thesis
Open AccessGraphene is a relatively new material with unique properties that found application in the field of electronics and optoelectronics. A broadband absorption makes it especially interesting for photodetection applications. ... -
Plasmonically enhanced light absorption in graphene nanoribbons
(Universitat Politècnica de Catalunya, 2012-09-06)
Master thesis
Open Access[ANGLÈS] Light absorption plays a crucial role in both optical detectors and photovoltaics. In order to improve the light absorption properties of materials different measures can be taken. This thesis considers light ... -
Resonances in graphene plasmons
(Universitat Politècnica de Catalunya, 2014-09-09)
Master thesis
Open Access[ANGLÈS] Graphene is used as a novel, versatile plasmonic material. The most common way to implement resonant light-plasmon coupling is to etch graphene into periodic nanostructures, which is invasive. Here, we study a ... -
Single quantum emitter manipulation with 2D materials
(Universitat Politècnica de Catalunya, 2018-05-22)
Doctoral thesis
Open Access
Covenantee: Università degli Studi di FirenzePhotonics aims to manipulate light by controlling its interactions with matter to enable novel optical technologies for communication, information processing and sensing. Current efforts strive to enter the regime of quantum ... -
Study of graphene hybrid heterostructures for linear and nonlinear optics
(Universitat Politècnica de Catalunya, 2020-06-23)
Doctoral thesis
Open AccessGraphene is the first of the 2D-material family. It is formed by carbon atoms arranged in a honeycomb lattice, which confers it intriguing physical properties that are still being discovered nowadays. A fundamental advantage ... -
Ultrafast optoelectronics in 2D materials and their heterostructures
(Universitat Politècnica de Catalunya, 2017-09-05)
Doctoral thesis
Open AccessUnderstanding and improving how light is converted into electricity in materials is one of the central goals in the field of optoelectronics. This basic physical process lies at the heart of several major technologies, ...