Seminars
2013
2013-03-25: Kista Science Seminar
Title: Application of laser technologies for analytical process monitoring in steel industry - Examples of applied research at Swerea KIMAB
Speaker: Jonas Gurell, SWEREA KIMAB, Kista
Time: Monday March 25 at 3:00pm
Venue: Lecture hall C1, Electrum, Kista
2013-03-22: MNF seminar
Title: The new generation of fiber-optic communication - digital radio at optical frequencies
Speaker: Richard Schatz, Photonics and Microwave Engineering, KTH
Time: Friday March 22 at 2:00pm
Venue: Lecture hall C1, Electrum, Kista
2013-03-21: Kista Science Seminar
Title: Why do some colloidal silicon nanocrystals exhibit red photoluminescence while others simply have the blues? An answer to the red vs. blue quandary
Speaker: Jonathan G.C. Veinot, Department of Chemistry/National Institute of Nanotechnology, University of Alberta
Time: Thursday March 21 at 3:00pm
Venue: Lecture hall C2, Electrum, Kista
2013-03-21: PhD defence of Patrik Rugeland
Title: Applications of monolithic fiber interferometers and actively controlled fibrers
Time: Thursday March 21 at 10.15am
Venue: Lecture hall FA32, Albanova, KTH
Opponent: Prof. Miguel Andrés, Departemento de Fisica Aplicada ICMUV, Universidad de Valencia, Spanien
Supervisor: Prof. Fredrik Laurell
Co-supervisor: Prof. Walter Margulis
Abstract:
The objective of this thesis was to develop applications of monolithic fiber devices and actively controlled fibers. A special twin-core fiber known as a ‘Gemini’ fiber was used to construct equal arm-length fiber interferometers, impervious to temperature and mechanical perturbations. A broadband add/drop multiplexer was constructed by inscribing fiber Bragg gratings in the arms of a Gemini Mach-Zehnder interferometer. A broadband interferometric nanosecond switch was constructed from a micro-structured Gemini fiber with incorporated metal electrodes. Additionally, a Michelson fiber interferometer was built from an asymmetric twin-core fiber and used as a high-temperature sensor. While the device could be readily used to measure temperatures below 300 °C, an annealing process was required to extend the range up to 700 °C. The work included development, construction and evaluation of the components along with numerical simulations to estimate their behaviors and to understand the underlying processes. The thesis also explored the use of electrically controlled fibers for filtering in the microwave domain. An ultra-narrow phase-shifted fiber Bragg grating inscribed in a fiber with internal electrodes was used as a scanning filter to measure modulation frequencies applied to an optical carrier. A similar grating was used inside a dual-wavelength fiber laser cavity, to generated tunable microwave beat frequencies. The studied monolithic fiber interferometers and actively controlled fibers provide excellent building blocks in such varied field as in microwave photonics, telecommunications, sensors, and high-speed switching, and will allow for further applications in the future.
2013-03-20: Docent seminar of Min Yan
Title: Plasmonics: physics and applications
Speaker: Min Yan, Optics and Photonics, ICT, KTH
Time: Wednesday, March 20 at 3:00pm
Venue: Lecture Hall C1, Electrum, Kista
Abstract: The recent upsurge in research activities on plasmonics within optics and photonics lies in the fact that noble metallic nanostructures can exhibit leveraged and tailorable electromagnetic responses to light, via the so-called free-electron plasmon oscillations. This seminar will shed light on the physical origin behind such extraordinary light-matter interactions. Several important applications of plasmonics, including light localization beyond diffraction limit and negative-index media, will be pinpointed. A more concrete example on how plasmonic nanostructures can give rise to artificial colors as a result of their super absorptive nature will be presented, accompanied by real-life samples directly out of Electrum lab.
2013-03-08: MNF seminar
Title: Hydride Vapour Phase Epitaxy: Paradise lost and paradise regained
Speaker: Sebastian Lourdudoss
Time: Friday, March 8 at 2:00pm
Venue: Lecture Hall C2, Electrum, Kista
2013-02-25: Seminar on thermal conductivity in Si membranes
Title: Thermal conductivity in ultra-thin Si membranes: Phonon dispersion relation and lifetime contributions
Speaker: Prof. Clivia M. Sotomayor Torres, Catalan Institute of Nanotechnology and Dept. of Physics, University Autonomous de Barcelona, Spain
Time: Monday, February 25 at 15:00
Venue: Lecture hall C1, Electrum, Kista
Abstract: The reduction of the thermal conductivity in low dimensional materials has been associated with two principal effects, namely, the modification of the acoustic dispersion relation due to the spatial confinement of the phonon modes and the shortening of the phonon mean free path due to the diffuse scattering of phonons at the boundaries of the membranes. We have studied acoustic phonon confinement experimentally and theoretically: The dispersion relation curves have been measured and phase velocities of the modes determined. A reduction of the phase and group velocities of the fundamental flexural mode by more than 1 order of magnitude compared to bulk values have been observed. We have measured the lifetime of coherent acoustic phonon modes with frequencies up to 500 GHz in these membranes using the ultrafast pump-probe technique of asynchronous optical sampling. The decay time of the first-order dilatational mode was seen to decrease significantly from ∼ 4.7 ns to 5 ps with decreasing membrane thickness from ∼ 194 to 8 nm. We compare the experimental results with theories considering both intrinsic phonon-phonon interactions and extrinsic surface roughness scattering including a wavelength-dependent specularity parameter. Our combined results provide an insight into the limits of nanomechanical resonators and specially thermal transport in nanostructures. The latter will be discussed in the context of these phonon studies.
2013-02-15: MNF seminar by Anand Srinivasan
Title: Nanostructured semiconductors
Speaker: Anand Srinivasan
Venue: Lecture Hall C1, Electrum, Kista
Time: Friday, February 15th, 2:00pm
2013-02-08: MNF seminar on nano-optics
Title: Ultrafast nano-optics and nano-materials (continued)
Speaker: Sergei Popov
Venue: Lecture Hall C1, Electrum, Kista
Time: Friday, February 8th, 2:00pm
2013-02-01: MNF seminar on nanophotonics
Title: Activities on metamaterial light absorber in Optics and Photonics
Speaker: Min Qiu
Venue: Lecture Hall C1, Electrum, Kista
Time: Friday, February 1st, 2:00pm
2013-01-25: MNF seminar on nano-optics
Title: Ultrafast nano-optics and nano-materials
Speaker: Saulius Macinkevicius
Venue: Lecture Hall C1, Electrum, Kista
Time: Friday, Jan 25th, 2:00pm
2013-01-18: MNF seminar on silicon photonics
Title: Activities on silicon photonics in KTH Kista
Speaker: Lech Wosinski
Venue: C1, Electrum, Kista
Time: January 18th, 2:00pm
2012
2012-12-19: Seminar by Simon Fleming
Title: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
Abstract:
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
Abstract: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105863
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: ,
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
Title: 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
Abstract:
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:
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.
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
Title: 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.
2011
2011-12-08, Monday
Title: The Nobel Prize Laureates in Physics 2011
Time: Monday 12 December 2011 from 16.00 to 18.00
Venue: Oskar Klein auditorium
Category: AlbaNova Event
Abstract: The three Nobel Laureates in Physics 2011, Saul Perlmutter, Brian Schmidt and Adam Riess will tell us about the discovery of the accelerating expansion of the universe. They will do this with the help of members of their research teams, the Supernova Cosmology Project and the High-z Supernova Search Team.
2011-12-08, Thursday
Title: Superresolution Light Microscopy Experiments
Speaker: Prof. Steven Chu, Secretary of Energy for the United States of America
Time: Thursday 8 December 2011 from 15.15h
Venue: Oskar Klein Auditorium (FR4), AlbaNova
Category: AlbaNova and Nordita Colloquium
Abstract: Recent advances in microscope technology, fluorescent labeling and surface preparation have allowed for remarkable progress in our understanding of biological processes at the nano-scale. This talk will cover some of our work in this general area, including the study of synaptic vesicle fusion and the molecular architecture and assembly principles of vibrio cholerae biofilms.
2011-11-10, Thursday
Title: Fiber form nanophotonic devices: from plasmonics towards nonlinear optics
Speaker: Dr. Markus Schmidt, Max-Planck Institute for the Science of Light
Venue: AlbaNova University Center, FA32
Time: Thursday 2011-11-10 09.15AM
Category: KTH Applied Physics seminars
2011-10-28, Friday
Title: Nobel Prize and Bell Labs: Stories of Discoveries and Innovations in Photonic
Speaker: Prof. Chinlon Lin, Nanyang Tech. University in Singapore.
Venue: Lecture hall C1, Electrum, Kista
Time: 15:00 on Friday, October 28
Category: Kista Science Seminars
2011-10-18, Tuesday
Title: Quantum Feedback Control of Non-classical Microwave Fields in Cavity Quantum Electrodynamics Experiments
Speaker: Prof. Serge Haroche (Collège de France, Paris)
Time: 18 October 2011 from 15:15
Venue: Oskar Klein Auditorium (FR4), AlbaNova
Category: AlbaNova and Nordita Colloquium
2011-09-29, Thursday
Title: Wonders of Light--Laser Photonics, Global Internet and Beyond
Speaker: Prof. Chinlon Lin, Nanyang Tech. University in Singapore.
Venue: Oscar Klein auditorium (FR4)
Time: 15:15 on Thursday, September 29
Category: AlbaNova Colloquium
2011-09-09, Friday
Title: Advanced Laser Photonics R and D and Impacts on the Modern Human Societies
Speaker: Prof. Chinlon Lin, Nanyang Tech. University in Singapore.
Venue: Lecture hall C1, Electrum, Kista
Time: 15:00 on Friday, September 9
Category: Kista Science Seminars
2011-09-15, Thursday
Title: Nano-optics with single photons
Speaker: Prof. Valéry Zwiller, TU Delft
Venue: Room FA32, AlbaNova
Time: 9:15 on Thursday, September 15
Category: AlbaNova Applied Physics seminars
2011-06-16, Thursday
Title: Nonlinear engineering of ultrshort-pulse fiber lasers and applications for nanostructure self assembly
Speaker: Prof. Ömer Ilday, Bilkent University, Ankara, Turkey
Time: 9:15 on Thursday, June 16
Venue: FA31 at Albanova
2011-06-07, Tuesday
Title: Control over frequency- and angular spectrum of a biphoton field and its possible applications for quantum communications
Speaker: Prof. Sergey Kulik, Moscow State University
Time: Tuesday, June 7 at 10:00 o’clock.
Venue: lecture hall FB52 at Albanova
2011-05-25, Wednesday
Title: Kista Science Seminar
Speakers: Prof. Federico Capasso, Harvard University, and Prof. Jim Murday, Research Advancement Office, University of California
Venue: C1 lecture hall, Electrum, Kista.
Time: 16:00
2010
2010-12-14, Tuesday
Title: Docent seminar in Physics: Optical nonlinearities and photonic crystal structures
Speaker: Katia Gallo, Laser Physics, KTH
Time: Tuesday 2010-12-14 at 14.15 - 15.00;
Venue: KTH Albanova, hall FD5.
2010-05-12, Wednesday
Title: Light, Metal and Holes
Speaker: Prof. Thomas Ebbesen, Strasbourg University and CNRS
Time: 11.00
Venue: FD5, (Svedbergsalen) Albanova
2010-04-28, Wednesday
Title: Nanoplasmonics – sensors, SERS and optical forces
Speaker: Prof. Mikael Käll, Chalmers
Time: 14.00
Venue: C1, Electrum, KTH-Kista
2010-03-26, Friday
Title: The X-ray Free Electron Laser - A New and Emerging Research Tool
Speaker: Prof. Ingolf Lindau, Lund University and Stanford University
Time: 14.30
Venue: Auditorium C1, Electrum, Kista
2010-06-03, Thursday
Title: The laser, fifty years after it’s invention
Speaker: Prof Orazio Svelto, Politecnico di Milano, Italy
Time: 15:15-16:00
Venue: Oscar Klein auditorium, FR4, AlbaNova.
2010-03-18, Thursday
Title: Scanning Near-Field Optical Microscopy: Principle, Instrumentation and Examples
Speaker: Prof. Saulius Marcinkevicius, OPT Optik, KTH
2009
2009-12-17, Thursday
Title: Geometry, light and a wee bit of magic
Speaker: Prof. Ulf Leonhardt, University of St Andrews, UK
2009-12-03, Thursday
Title: Frequency Combs for Astrophysics
Speaker: Prof. Thomas Udem, Max Planck institute for Quantum Optics, Germany
2009-11-18, Wednesday
Title: Quantum Optics with Single Molecules
Speaker: Prof. Vahid Sandoghdar, ETH Zurich, Switzerland
2009-11-11, Wednesday
Title: Magneto- and multiferroic photonics and their application to spatial light modulators
Speaker: Prof. Mitsuteru Inoue, Toyohashi University of Technology, Japan
2009-10-22, Thursday
Title: Attosecond Light Pulses and Attosecond Physics
Speaker: Prof. Anne L’huiller, Lund University, Sweden
2009-10-21, Wednesday
Title: Measuring Energy Transfer on the Nanometer Scale: Implications for High-Resolution Microscopy and the Design of Novel Photovoltaic Materials
Speaker: Prof. Jordan Gerton, University of Utah, United States
2009-10-07, Wednesday
Speaker: Dr Mikael Afzelius, Geneva University, Switzerland
2009-09-23, Wednesday
Speaker: Dr Alexei Trifonov, Harvard University, USA
2009-06-12, Friday
Title: Silicon-Based Micro- and Nano-Photonic Technology and Devices
Speaker: Prof. Richard M. DeLaRue, University of Glasgow, Scotland
2009-04-23, Thursday
Speaker: Prof. Jens Birch, Department of Physics, Linköping University
2009-03-12, Thursday
Title: Silicon quantum dots - do they exist?
Speaker: Prof. Jan Linnros, Laboratory of Material and Semiconductor Physics, KTH
2008
2008-11-24, Wednesday
Title: Nonlinear physics in periodic photonic photonic structures and metamaterials
Speaker: Prof. Yuri Kivshar, Nonlinear Physics Center, Australian National University, Canberra (Australia)
