Victoria Birkedal received her PhD in Physics from the Ecole Polytechnique Federale de Lausanne, EPFL, in Switzerland in 2001. She did her postdoctoral work both at the University of California, Santa Barbara, USA and at Aarhus University, Denmark. In 2005, she moved from semiconductor physics to biophysics. She started to lead her own research group in 2011 and is now an associate professor at the chemistry department and interdisciplinary nanoscience center (iNANO) at Aarhus University, Denmark. Her research group focuses on examining structure-dynamics-function relationships of macromolecular assemblies in fundamental biological processes and nanotechnology applications.
At this years congress Victoria Birkedal will talk about dynamics and conformations of DNA structures.
Shedding light on dynamics and conformations of DNA structures and hybrid devices
Fluorescence spectroscopy and resonance energy transfer are versatile techniques that allow investigating molecular interactions and conformational changes of polymer molecules and obtaining insights into the “machinery” of bio- and nanosystems. The combination of these techniques with single molecule microscopy is a powerful tool, as it offers real-time imaging of sample heterogeneity. I will present our experimental approaches and their applications to 1) uncovering the folding landscape of small DNA structures and 2) using DNA to control the aggregation of conjugated polymers.
Frédéric Grillot is currently a full professor at Télécom Paris (France) and a Research Professor at the University of New-Mexico (USA). His research interests include, but are not limited to, advanced quantum confined devices using III-V compound semiconductors, quantum dots quantum dashes, light-emitters based on intersubband transitions, non-classical light, nonlinear dynamics and optical chaos in semiconductor lasers systems as well as microwave and silicon photonics applications. Professor Grillot strongly contributes to promote and support the development of the general optics community. He has served diligently and successfully Optica in particular as an Associate Editor of Optics Express, now as a Deputy Editor since September 2022. As of now, he has published more than 130 journal articles, 3 book chapters, and delivered many invited talks in major international conferences and workshops. Frédéric Grillot is also a Fellow Member of the SPIE as well as a Senior Member of Optica and the IEEE Photonics Society. In 2022, he received the IEEE Photonics Society Distinguished Lecturer Award which honors excellent speakers who have made technical, industrial or entrepreneurial contributions to the field of photonics.
At this years congress Frédéric Grillot will talk about Semiconductor Quantum Dots.
Semiconductor Quantum Dots, why are they so quantum? Genesis, prospects & challenges
Semiconductor nanostructures with low dimensionality like quantum dots are one the best attractive solutions for achieving high performance photonic devices. When one or more spatial dimensions of the nanocrystal approach the de Broglie wavelength, nanoscale size effects create a spatial quantization of carriers along with various other phenomena based on quantum mechanics. Thanks to their compactness, great thermal stability and large reflection immunity, semiconductor quantum dot lasers are very promising candidates for low energy consumption and isolation free photonic integrated circuits. When directly grown on silicon, they even show a four-wave mixing efficiency much superior compared to the conventional quantum well devices. This remarkable result paves the way for achieving high-efficiency frequency comb generation from a photonic chip. Quantum dot lasers also exhibit a strong potential for applications in optical routing and optical atomic clock. Last but not least, a quantum dot single photon source is a building block in secure communications, and therefore can be applied to quantum information processing for applications such as quantum computers. I will review the recent findings and prospects on nanostructure based light emitters made with quantum-dot technology. Many applications ranging from silicon-based integrated solutions to quantum information systems will be presented.
Thomas Udem is a full professor at the Max Planck Institute of Quantum Optics.