Seminars 2012

2012-12-19: Seminar by Simon Fleming
Metamaterials Fabricated by Fibre Drawing
Speaker: Professor Simon Fleming, University of Sydney
Time: Wed 19 December 2012, 10:15 am
Place: Seminar room FA31, AlbaNova University Center
Metamaterials offer the potential of extraordinary properties and the possibility of making optical devices that cannot be realised with naturally occurring materials. However there are significant challenges in fabricating metamaterials; a challenge that is greatly magnified when considering scaling to practically useful quantities. We have applied the established technique of fibre drawing to this problem and have demonstrated drawn metamaterials with engineered permittivity and permeability at THz wavelengths. We have recently extended the wavelength range into the IR and have initial results with devices fabricated with these metamaterials.

2012-12-19: Licenciat defence of Jonas Almlöv
Title: Quantum error-correction
Candidate: Jonas Almlöv
Supervisor: Prof. Gunnar Björk, APHYS, SCI
Opponent: Doc. Jan-Åke Larsson, Linköping University
Venue: sal B5:1036 i AlbaNova
Time: 14:00 on 19th of December, 2012

2012-12-18: PhD defence of Mikael Malmström, Laser Physics
Title: All-Fiber Modulators for Laser Applications
Candidate: Mikael Malmström
Supervisors: Professors Fredrik Laurell and Walter Margulis
Opponent: Professor Simon Fleming, University of Sydney
Time: Tue 18 December 2012, 10:00 am
Venue: Lecture hall FD5, Albanova, Roslagstullsbacken 21, KTH

2012-12-14: Kista Science Seminars
Talk 1: InSb-based Quantum-Dot Interband Infrared Photodetectors
Speaker 1: Oscar Gustafsson, Components and Circuits, KTH ICT
Talk 2: Silicon Quantum Dots as Single Photon Source
Speaker 2: Fatemeh Sangghaleh, Material Physics, KTH ICT
Talk 3: Recent Progress in Heteroepitaxy of InP on Si
Speaker 3: Carl Junesand, Semiconductor Materials, KTH ICT
Time: Friday, December 14 at 15:00
Venue: Seminar room, C1 lecture hall, Electrum, Kista
Organizors: Jonas Weissenrieder and Jan Linnros
More info:  Seminar flier (pdf 115 kB)abstracts (pdf 14 kB)

2012-12-12: Master thesis presentation by Hoda Kianirad
Title: Contact poling of RKTP with silicon needles
Speaker: Hoda Kianirad, Laserphysics
Time: Wed 12 December 2012, 3:00 pm
Venue: Laserphysics, seminar room A3:1041

2012-12-07: MNF seminar
Title: Research activities in nano-silicon group (followed by lab tour)
Speaker: Jan Linnros
Venue: Lecture hall C2, Electrum, Kista
Time: 2:00pm, 7th of December, 2012

2012-11-20, Tuesday
Ultra-Low Cost Hybrid Photonic Integrated Circuits
Speaker: Gideon Yoffe,  Kaiam Corporation
Time: Tuesday 20 Nov, 2012 at 10:15-11:00
Venue: FMI conference room, stairs C, floor 3.
Category: FMI seminar
The current explosion in bandwidth usage and the coming deployment of fibre-to-the-home are pushing photonic products into uncharted territory. We need telecom performance on multiple parallel high-speed lanes, in compact power-efficient packages, at prices and volumes more familiar in consumer electronics. We show how hybrid packaging of state-of-the-art standard components on a MEMS-aligned platform offers high functionality, satisfies the needs of low material cost and fast automated assembly, and how it is enabling the next generation of optical communications. Examples include 40 and 100Gb/s transceivers, and external-cavity tunable lasers.

2012-11-19, Monday
Title: Localization effects in ternary nitride semiconductors
Candidate: Vytautas Liuolia
Supervisor: Prof. Saulius Marcinkevicius
Opponent: Prof. Toshiharu Saiki
Time: 10:30, November 19, 2012
Venue: C2, Electrum
Category: PhD thesis defense
Abstract:  available here

2012-10-25, Thursday
Title: Post-processed and liquid-filled microstructured optical fibers: novel platforms for sensing, nonlinear optics and photonic device development
Speaker: Christiano Matos, Grupo de Fotônica, Universidade Presbiteriana Mackenzie
Time: Thursday 25th October at 09:15
Venue: FA32, Albanova
Category: APHYS Seminar

2012-09-10, Monday
Title: Ultrafast high THz-field driven charge transport in photo-generated plasmas in semiconductors: transition from ballistic to diffusive transport regime
Speaker: Prof. Christos Flytzanis, Laboratoire Pierre Aigrain, Ecole Normale Superieure,  Paris
Time: Mon 2012-09-17 13.15
Location: AlbaNova University Center, FA32
Category: KTH Applied Physics Seminars
Abstract:  Flytzanis. Physics KTH Sept 2012 Seminar Abstract.pdf (pdf 64 kB)

2012-04-27, PhD disputation
PhD candidate: Gustav Strömqvist, Laser Physics
Title: Nonlinear response in engineered optical materials
Subject: Physics
Time: Friday, 2012-04-27, 10.15
Venue: Room FD5, Albanova, Roslagstullsbacken 21, KTH
Opponent: Professor Peter Smith, Optoelectronics Research Center, Univ. of Southampton, United Kingdom
Supervisor: Professor Valdas Pasiskevicius

2012-03-05, Monday
Title: Solar Impulse: Breakthrough for Transportation Systems -- Towards a Sustainable Solar Future: Dream or Reality?
Speakers: Jean-François Guillemoles, Professor, Chimie Paristech ENSCP (Ecole nationale supérieure de chimie de Paris) and IRDEP (Institut de recherche et développement sur l’énergie photovoltaïque), CNRS, Lars Kloo, Professor, School of Chemical Science and Engineering, KTH, and Claude Michel, Head of the Solvay Solar Impulse Partnership
Time: Monday 5th March 2012, 15.00 - 17.45
Venue: Royal Institute of Technology (KTH), Lindstedtsvägen 22, F1, Stockholm
Category: Mois de la Francophonie in Sweden and the Film&Science Festival organised by the Nobel Museum.
Abstract: Solar Impulse is the only solar plane in the world that can fly day and night with a pilot on board without using a drop of fossil fuel. Launched as a vision in 2004 the Solar Impulse project became reality in July 2010 when the solar plane achieved the first ever day and night flight powered only by the sun, a decisive milestone towards the round-the-world flight expected in 2014. This seminar takes place within the Film&Science Festival organised by the Nobel Museum. It aims at presenting an overview on solar technologies, a fast developing domain for research and industry that opens up new perspectives in terms of efficiency, engineering and cost reduction for the forthcoming decade.
Mer info (pdf 255 kB)

2012-02-29, Wednesday
Title: Fusion energy from lasers: the French approach (laser Mégajoule)
Speaker: Thierry Massard, Scientific Director CEA - Defense and Security, CEA - French Atomic Energy and Alternative Energies Commission
Time: Wednesday 29th February, 2012, 15.00 - 16.00
Venue: KTH - Venue F2 Lindstedtsvägen 26, Entreplan
More info

2012-02-16, Thursday
 Bell's theorem, entanglement, quantum teleportation and all that
Speaker: Prof. Anthony Leggett, Department of Physics, University of Illinois
Time: Thursday 16 Feb, 2012 at 15:15-16:00
Venue: Oscar Klein Auditorium, Albanova
Category: AlbaNova Colloquium

2012-02-08, Wednesday
Title: Femtosecond laser micromachining for the fabrication of fully integrated optofluidic devices
Speaker: Prof. Roberta Ramponi, Department of Physics, Politecnico di Milano, Italy
Time: Wednesday 8 Feb, 2012 at 15:15-16:00
Venue: Room FA31, AlbaNova
Category: ADOPT seminar
Abstract: Femtosecond laser micromachining is a powerful and flexible tool for the fabrication of both optical waveguides and, when followed by chemical etching, of microchannels, with unprecedented intrinsic 3D capabilities. Indeed, when focusing the femtosecond pulses inside transparent material, following highly nonlinear absorption, modifications are induced in the irradiated volume with different characteristics depending on the laser fluence. At lower laser fluence, “gentle” modification, resulting in refractive index change, can be exploited for direct writing of waveguides. At higher laser fluence, in suitable materials (e.g. fused silica), nanogratings are formed that result in a higher selectivity to liquid chemical etching, and thus in the realization of microchannels. This allows the direct on-chip integration of photonic functionalities and the realization of fully integrated optofluidic devices with a simple fabrication procedure that doesn’t require any previous lithographic step. The basics of the technique are discussed together with its potentials. Some examples of devices are presented, both monolithic lab-on-chips for biomedical applications and optofluidic photonic devices.

2012-02-02, Thursday
Title: Quantum optical experiments – from centimeter to nanometer technology
Speaker: Prof. Ulrik Lund Andersen, DTU Denmark
Time: Thursday February 2 at 09.15
Venue: FA32, AlbaNova
Category: ADOPT and Applied Physics seminar
Abstract: Quantum effects are being studied in various different sized systems and exploited in quantum information science and quantum metrology. In this talk I will discuss various systems that either operate at the quantum limit or have the potential to do so. In particular, I will address experiments on single photon plasmonics, highly non-classical cat states, quantum key distribution and micro-mechanical oscillators.

2012-01-19, Thursday
Title: Nanoscopy with focused light
Speaker: Stefan W Hell, MPI for Biophysical Chemistry, Göttingen
Time: 19 Jan, Thursday, 15.15-16.15
Venue: Oskar Klein auditorium (FR4), Albanova Univ center
Abstract: Since the 19th century it has been widely accepted that a light microscope cannot see details that are finer than half the wavelength of light (>200 nm). However, in the 1990s it was discovered that this diffraction resolution barrier can be effectively overcome, such that fluorescent features can be resolved virtually down to molecular dimensions, using regular lenses. Here we discuss the simple yet powerful physical principles that allowed us to break the diffraction resolution limit, with special emphasis on STED microscopy. Besides, we exemplify the relevance of this rapidly emerging 'optical nanoscopy' to various fields, in particular the material and the life sciences, where the interior of cells and tissues can now be investigated non-invasively at the nanoscale.

Innehållsansvarig:Max Yan
Tillhör: Skolan för teknikvetenskap (SCI)
Senast ändrad: 2014-01-15