Seminars 2017

2017-03-22: Quantum Materials and Photonics seminar
Filamentation of ultrashort laser pulses in air
Speaker: Andre Mysyrowicz, from Laboratoire d'Optique Appliquée, France
Time: 22 March, 1-2 pm
Location: Room FA31, KTH AlbaNova
Abstract Abstract_QMP_20170322 (pdf 131 kB)

2017-04-06: KTH-IEEE seminar on "Cultural Competence"
Title: Cultural Competence - A Key Skill to Work Successfully in International Teams
Speaker: Ekaterina von Gertten, Aperian Global
Organizer: Elena Vasilieva, KTH, IEEE WIE, IEEE Sweden
Time: 6 Apr 2017, 17:00 – 19:00
Location: KTH, Electrum, sal B
Abstract: In collaboration with Royal Institute of Technology, IEEE and Aperian Global, we invite you to join us for an evening of insights & discussion. In such a fast developing globalized world, the majority of us are members of an international team. This means that one has to create relationships and get work done through communicating across cultural boundaries. Cultural competence is now considered one of the key skills to succeed with an international career and the lack of it is viewed as one of the biggest obstacles for achieving efficiency in diverse teams. During the presentation, participants will: (1) Learn how our cultural background shapes our personalities & behaviors in the workplace; (2) Explore cultural dimensions & GlobeSmart, the industry-leading cultural inventory; (3) Gain tools & strategies for developing cultural agility
More info CulturalCompetenceKeynote Flyer.pdf (pdf 476 kB)

2017-03-15: Quantum Materials and Photonics seminar
Qubiz: Tunnelling the Barrier – Bringing Quantum Technologies to Market
Speaker: Cathal Mahon from Qubiz, Quantum Innovation Center, Copenhagen
Time: 11-12 noon
Location: FB42, KTH AlbaNova
Abstract: Qubiz: Quantum Innovation Center is a National Center dedicated to leveraging the very strong and unique research position within Quantum Physics in Denmark with a view to Commercializing Quantum Technologies. It represents Innovation Fund Denmark’s biggest single investment (potentially up to 22M€) with almost an additional 30 M€ from University and Industrial Partners over the planned 5-year period.

2017-02-22: Quantum Materials and Photonics seminar
Title: Rare earth ion doped crystals for quantum technology
Speaker: Stefan Kröll, Lund University
Time: 11-12 noon
Location: KTH AlbaNova
Abstract: Rare earth ions doped into inorganic crystals can remain in quantum superposition states during several hours and it is possible to entangle ions in spatially remote crystals with each other. This talk will review how rare earth ion doped crystals can be used in quantum tasks and in particular as quantum memories. If time permits the talk may also touch on slow light effects in these materials. The talk will be aimed to a general physics audience with interest in coherent interactions between light and matter.

2017-02-22: Quantum Materials and Photonics seminar
Title: The latest (monolayer WSe2) and greatest (InGaAs quantum dots) in solid-state quantum emitters
Speaker: Brian Gerardot,  Quantum Photonics Laboratory, Heriot-Watt University
Time: 11-12 noon
Location: FA31, KTH AlbaNova
Abstract: Motivated by potential technologies that exploit quantum mechanical superposition and entanglement, I will present our recent progress in the application of quantum optical techniques to coherently probe and manipulate solid-state quantum emitters. I will first discuss resonance fluorescence from single self-assembled InGaAs quantum dots, focusing particularly on the generation of ultra-coherent, indistinguishable photons in spite of the presence of environmental noise induced by nearby fluctuating nuclear spins or electronic charges.  I will then present recent work on a “new” quantum emitter: a localised exciton in a WSe2 monolayer. Such a two-dimensional transition metal dichalcogenide semiconductor is an intriguing host for a quantum emitter due its unique optical, electronic, and structural properties. I will show how such emitters can be both spatially and spectrally localised via strain gradients and probe their magneto- and quantum-optical properties.  These results raise the prospect to deterministically strain-engineer arrays of quantum emitters in two-dimensional semiconductors.

2017-02-21: Seminar by Val Zwiller
Title: Communicating with light
Speaker: Val Zwiller, QNP and ADOPT, KTH
Time: 5-6:30 PM
Location: Dome of Visions, Valhallavägen 79 
Abstract: The seminar describes how light as an electromagnetic wave can be used in optical communications (fiber optics) and imaging.

2017-02-14: Quantum Materials and Photonics seminar
Title: Nanophotonic circuits for unconventional computing
Speaker: Prof. Wolfram Pernice, University of Muenster, Germany
Time: 11am-12noon
Location: FA32, KTH AlbaNova
Abstract: Nanophotonic circuits employ waveguiding devices to route light across quasi-planar integrated optical chips in analogy to electrical wires in integrated electrical circuits. Using materials with high refractive index allows for confining light into sub-wavelength dimensions as efficient optical wires. This way complex systems can be assembled from individual photonic building blocks using reliable nanofabrication routines. Besides applications in classical information processing and sensing, nanophotonic circuits provide interesting options for optical computing when combined with functional materials. Here I will give an overview of two recent efforts to realize the constituents for non-traditional computing architectures. Both approaches employ near-field coupling to nanophotonic waveguides as a resource to tailor light-matter interactions within an on-chip circuit architecture. I will introduce phase-change nanophotonic circuits as a platform for arithmetic processing, where calculation and storage of results are carried out in the same physical location. This approach allows for performing basic arithmetic on chip in an all-optical fashion. As an alternative, I will describe how nanophotonic circuits provide a rich toolbox for non-classical computations when operated at the single photon level. In this case, nanoscale fabrication enables the scalable realization of the building blocks required for linear optical quantum computing. I will present recent results on establishing such a platform with pure electronic control and nanoscale footprint.

2017-02-10: Quantum Materials and Photonics seminar
Title: Atomistic Modeling of Excitonic States in Semiconducting Nanostructures
Speaker: Prof. Michał Zieliński, Nicolaus Copernicus University
Time: 11am-12noon
Location: FA31, KTH AlbaNova
Abstract: See the attachment (pdf 201 kB)

2017-02-08: Quantum Materials and Photonics seminar
Title: Quantum optics with new toys
Speaker: Prof. Radek Łapkiewicz, University of Warsaw
Time: 11am-12noon
Location: FA32, KTH AlbaNova
I will discuss a few experiments with photons, trying to convince you that:
1. It is possible to image objects without detecting the light scattered by them.
2. Correlations between two particles can be witnessed by detecting only one particle.
3. Spatial phase of a single photon can be measured.
The experiments share the idea of replacing single pixel detectors with cameras in the classic setups of Leonard Mandel.

Till sidans topp