TY - JOUR
T1 - Optimal wave fields for micromanipulation in complex scattering environments
AU - Horodynski, Michael
AU - Kühmayer, Matthias
AU - Brandstötter, Andre
AU - Pichler, Kevin
AU - Fyodorov, Yan V.
AU - Kuhl, Ulrich
AU - Rotter, Stefan
PY - 2019/11/18
Y1 - 2019/11/18
N2 - The manipulation of small objects with light has become an indispensable tool in many areas of research, ranging from physics to biology and medicine1–7. Here, we demonstrate how to implement micromanipulation at the optimal level of efficiency for arbitrarily shaped targets and inside complex environments such as disordered media. Our approach is to design wavefronts in the far field8–15 with optimal properties in the near field of the target to apply the strongest possible force, pressure or torque as well as to achieve the most efficient focus inside the target. This non-iterative technique only relies on a simple eigenvalue problem established from the system’s scattering matrix and its dependence on small shifts in specific target parameters (access to the near field of the target is not required). To illustrate this concept, we perform a proof-of-principle experiment in the microwave regime, fully confirming our predictions.
AB - The manipulation of small objects with light has become an indispensable tool in many areas of research, ranging from physics to biology and medicine1–7. Here, we demonstrate how to implement micromanipulation at the optimal level of efficiency for arbitrarily shaped targets and inside complex environments such as disordered media. Our approach is to design wavefronts in the far field8–15 with optimal properties in the near field of the target to apply the strongest possible force, pressure or torque as well as to achieve the most efficient focus inside the target. This non-iterative technique only relies on a simple eigenvalue problem established from the system’s scattering matrix and its dependence on small shifts in specific target parameters (access to the near field of the target is not required). To illustrate this concept, we perform a proof-of-principle experiment in the microwave regime, fully confirming our predictions.
UR - http://www.scopus.com/inward/record.url?scp=85075344639&partnerID=8YFLogxK
U2 - 10.1038/s41566-019-0550-z
DO - 10.1038/s41566-019-0550-z
M3 - Letter
AN - SCOPUS:85075344639
JO - Nature Photonics
JF - Nature Photonics
SN - 1749-4885
ER -
TY - BOOK
T1 - Stochastic processes and random matrices
T2 - Lecture notes of the Les Houches summer school
AU - Schehr, Grégory
AU - Altland, Alexander
AU - Fyodorov, Yan V.
AU - O'Connell, Neil
AU - Cugliandolo, Leticia F.
PY - 2018/1/18
Y1 - 2018/1/18
N2 - The field of stochastic processes and Random Matrix Theory (RMT) has been a rapidly evolving subject during the last fifteen years. The continuous development and discovery of new tools, connections and ideas have led to an avalanche of new results. These breakthroughs have been made possible thanks, to a large extent, to the recent development of various new techniques in RMT. Matrix models have been playing an important role in theoretical physics for a long time and they are currently also a very active domain of research in mathematics. An emblematic example of these recent advances concerns the theory of growth phenomena in the Kardar-Parisi-Zhang (KPZ) universality class where the joint efforts of physicists and mathematicians during the last twenty years have unveiled the beautiful connections between this fundamental problem of statistical mechanics and the theory of random matrices, namely the fluctuations of the largest eigenvalue of certain ensembles of random matrices. This text not only covers this topic in detail but also presents more recent developments that have emerged from these discoveries, for instance in the context of low dimensional heat transport (on the physics side) or integrable probability (on the mathematical side).
AB - The field of stochastic processes and Random Matrix Theory (RMT) has been a rapidly evolving subject during the last fifteen years. The continuous development and discovery of new tools, connections and ideas have led to an avalanche of new results. These breakthroughs have been made possible thanks, to a large extent, to the recent development of various new techniques in RMT. Matrix models have been playing an important role in theoretical physics for a long time and they are currently also a very active domain of research in mathematics. An emblematic example of these recent advances concerns the theory of growth phenomena in the Kardar-Parisi-Zhang (KPZ) universality class where the joint efforts of physicists and mathematicians during the last twenty years have unveiled the beautiful connections between this fundamental problem of statistical mechanics and the theory of random matrices, namely the fluctuations of the largest eigenvalue of certain ensembles of random matrices. This text not only covers this topic in detail but also presents more recent developments that have emerged from these discoveries, for instance in the context of low dimensional heat transport (on the physics side) or integrable probability (on the mathematical side).
UR - http://www.scopus.com/inward/record.url?scp=85052640972&partnerID=8YFLogxK
U2 - 10.1093/oso/9780198797319
DO - 10.1093/oso/9780198797319
M3 - Book
AN - SCOPUS:85052640972
SN - 9780198797319
VL - 104
BT - Stochastic processes and random matrices
PB - Oxford University Press
ER -