PUBLICATIONS
Research · Knowledge · Technical Communication
Technical publication forms an important part of Tome's relationship with research.
Research does not end when a technical question has been investigated. The knowledge developed through analysis, experimentation and engineering can also be documented, communicated and made available for further study.
The publications presented here reflect technical work by Claudia González Burguete across engineering, photonics, infrared detection, digital television and telecommunications.
Some publications form part of a continuing research programme and describe different stages of the same underlying technical development. Others represent earlier areas of technical investigation and writing.
Together, they create a record of how technical knowledge has been investigated, developed and communicated over time.
Infrared Detectors & Photonics
The principal research programme presented here explores the development of InAs/GaSb type-II superlattice infrared photodetectors monolithically integrated on silicon.
Developed between 2017 and 2021, the work progresses from investigating whether specialised infrared detector materials can be grown directly on silicon, through detector architecture and optimisation, towards the demonstration and characterisation of functional silicon-based mid-wave infrared photodetectors.
The research can be understood as a progression:
MATERIAL INTEGRATION → DETECTOR OPTIMISATION → DEVICE DEMONSTRATION → INFRARED IMAGING INTEGRATION
2021 — Thesis
Development of Type II Superlattice Infrared Detectors Monolithically Integrated on Silicon Substrates
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Written by — Claudia González Burguete
The thesis brings together the wider research programme investigating the development and integration of InAs/GaSb type-II superlattice infrared photodetectors directly on silicon.
The research examines the challenges created by combining different semiconductor materials, develops and characterises the superlattice structures, investigates alternative detector architectures and progresses towards functional mid-wave infrared photodetectors fabricated on silicon.
At its centre is a technical question:
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Can the specialised semiconductor detector required for an infrared camera be manufactured directly on the same type of silicon platform used by conventional electronics?
The research demonstrates the technical feasibility of this approach while identifying material quality, defects, dark current and detector optimisation as continuing engineering challenges.
Technical focus: Photonics · Infrared Detection · Semiconductor Materials · Type-II Superlattices · Silicon Integration
2021 — Poster
Demonstration of Si Based InAs/GaSb Type II Superlattice p-i-n Photodetector
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Published by — UCL Electrical & Electronics Engineering
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Written & Designed by — Claudia González Burguete et al.
Presents the electrical and optical characterisation of an InAs/GaSb type-II superlattice mid-wave infrared photodetector grown directly on silicon.
The work demonstrates progress towards integrating the infrared-sensitive component of an imaging system directly with a silicon platform.
Technical focus: MWIR Detection · Photodetectors · Silicon Integration
2019 — Journal Article
Demonstration of Si Based InAs/GaSb Type-II Superlattice p-i-n Photodetector
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Published by — Infrared Physics & Technology
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Co-authored by — Claudia González Burguete et al.
A peer-reviewed study demonstrating and characterising an InAs/GaSb type-II superlattice p-i-n mid-wave infrared photodetector grown directly on silicon.
Optical and electrical measurements are used to assess detector performance and investigate defect-related processes associated with integrating III-V semiconductor materials with silicon.
Technical focus: Infrared Detection · Semiconductor Integration · Device Characterisation
2018 — Poster
Mid-Wave Infrared InAs/GaSb Type II Superlattice Photodetector on GaAs Substrates
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Exhibition — Mildner Lecture
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Published by — UCL Electrical & Electronics Engineering
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Written & Designed by — Claudia González Burguete
A comparative investigation of different InAs/GaSb type-II superlattice detector architectures developed to understand how device structure influences electrical and optical performance.
The work evaluates p-i-n, n-i-p and barrier-based designs, identifying the potential of barrier structures to reduce unwanted dark current while improving quantum efficiency.
Technical focus: Detector Architecture · MWIR · Device Optimisation
2018 — Poster
Direct Growth of InAs/GaSb Type II Superlattice MWIR Photodetector on Silicon Substrates
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Exhibition — UCL Research School
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Published by — UCL Electrical & Electronics Engieering
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Written & Designed by — Claudia González Burguete
Presents the development route from layer-by-layer growth of InAs/GaSb superlattice material on silicon through detector fabrication and towards integration within an infrared imaging system.
The work provides a wider engineering roadmap connecting material growth, device fabrication and future imaging integration.
Technical focus: Molecular Beam Epitaxy · Silicon Integration · Infrared Imaging
2017 — Journal Article
Direct Growth of InAs/GaSb Type II Superlattice Photodiodes on Silicon Substrates
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Published by — IET Optoelectronics
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Co-authored by — Claudia González Burguete et al.
A peer-reviewed study demonstrating the direct growth of InAs/GaSb type-II superlattice photodiodes on silicon.
The research investigates how the substantial mismatch between the semiconductor materials and silicon can be managed and compares the structural, optical and electrical behaviour of silicon-grown material with conventional reference structures.
The results establish an important early step towards the direct integration of infrared detector technology with silicon.
Technical focus: Epitaxial Growth · T2SL · Silicon · Photodiodes
2017 — Poster
Direct Growth of InAsGaSb Type II Superlattice Photodiodes on Silicon Substrates
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Published by — UCL Electrical & Electronics Engineering
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Written & Designed by — Claudia González Burguete et al.
A visual presentation of the research into growing type-II superlattice photodiodes directly on silicon, covering material integration and the structural, optical and electrical characterisation of the resulting devices.
Technical focus: T2SL · Photodiodes · Materials Characterisation
Digital Television & Telecommunications
An earlier body of technical writing, published in 2002, explores the development of digital television and telecommunications technologies.
Published in Spanish, these articles examine cable television systems and competing digital broadcasting standards during a period of significant technological transition.
They represent an earlier stage in Claudia González Burguete's technical writing and engineering interests, preceding the later research in photonics and infrared detector technology.
2002 — Article
Sistema de Televisión por Cable: Una Visión Integral
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Written & Edited by — Claudia González Burguete
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Published in Spanish.
An overview of cable television systems and their technological development, from providing television access in difficult-to-reach areas towards increasingly sophisticated systems capable of delivering greater channel capacity through digital technologies.
Technical focus: Cable Television · Digital Communications · Telecommunications
2002 — Article
DVB vs DigiCipher II
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Written & Edited by — Claudia González Burguete
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Published in Spanish.
An examination of DVB (Digital Video Broadcasting) and DigiCipher II, two approaches used for the distribution of digital television signals by satellite, considering their differing technological and geographical adoption.
Technical focus: Digital Television · Satellite Broadcasting · DVB · DigiCipher II
2002 — Article
En Televisión Digital ¿ATSC o DVB?
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Written & Editied by — Claudia González Burguete
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Published in Spanish.
An exploration of ATSC and DVB, two major digital television standards, and the different technological approaches associated with the transition from conventional to digital broadcasting.
Technical focus: Digital Television · Broadcasting Standards · ATSC · DVB
A Continuing Technical Record
The publications presented here span different periods, technologies and forms of technical communication.
The 2002 articles document an early interest in telecommunications and digital broadcasting.
The later work develops into a sustained research programme in photonics, semiconductor materials and infrared detection, progressing from material integration and detector architecture to functional silicon-based photodetectors.
Articles, conference papers, posters and the thesis should not necessarily be understood as separate research projects. Several document different stages or presentations of the same developing body of research.
Together, they demonstrate the role of publication within Tome:
INVESTIGATE → DEVELOP → DOCUMENT → COMMUNICATE
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Research develops knowledge.
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Publication gives that knowledge a technical record.
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Knowledge from which things can be made