Hi all,
And here's the abstract!
Best,
Ian
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To enable technologies of the future, high-performance exascale computing,
Internet-of-Things, next factor-of-100 cost-effective capacity increases in
optical networks and integrated quantum devices, conventional device
concepts are insufficient. Devices with excited states exceed electronic,
optical and thermal limits using atom-by-atom engineering. These systems
are able to provide multiple functionalities in an ultra-compact, 3D
monolithically integrated architecture enabling highly energy efficient
devices. This is simultaneously relevant in consumer electronics and
next-generation space-systems and satellites.
Excited state photonics and plasmonics finds a broad range of applications
in biosensing, positioning, navigation, and timing platforms, devices for
quantum information processing as well as high-resolution imaging. In this
seminar I will provide a fundamental understanding of plasmon-driven hot
carrier generation and relaxation dynamics in the ultrafast
(atto-picosecond) regime. I will report the first ab initio calculations of
phonon-assisted optical excitations in metals as well as calculations of
energy-dependent lifetimes and mean free paths of hot carriers, lending
insight towards transport of plasmonically-generated carriers at the
nanoscale.
In the context of excited state quantum devices, I will show results that
probe the fundamental optical behavior of cavities coupled to the elaborate
topology of light-harvesting complexes. This understanding will enable
rational control of photonic energy transfer at the molecular scale using
spatially programmable nanoscale materials inspired by natural
photosynthetic systems.
Application-specific, integrated device architectures at the atomic-scale
can be achieved via 2D materials and their corresponding van der Waals
heterostructures with deterministic defect engineering. I will give several
examples of devices in the technologically important mid-long wave IR
spectral band based on vdW heterostructures. A particular application of
these in space platforms and space exploration that requires ultra-light
optical components will be discussed in detail.
Finally I will give an outlook on the potential of excited state and
non-equilibrium phenomena to deliver integrated quantum-engineered systems
with diverse applications in quantum sensing and metrology, ultra-low power
optoelectronic and electronic devices as well as energy conversion.
On Wed, Feb 22, 2017 at 11:59 PM Ian Kivlichan <ian.kivlichan(a)gmail.com>
wrote:
Hi all,
Tomorrow Pri will talk at group meeting . This is a practice job talk, so
please come prepared! See below for the title and abstract.
All the best,
Ian
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Title: "The future of Integrated Devices with Excited States"