Author(s): M. Menotti, B. Morrison, K. Tan, Z. Vernon, J. E. Sipe, and M. Liscidini
We demonstrate a system composed of two resonators that are coupled solely through a nonlinear interaction, and where the linear properties of each resonator can be controlled locally. We show that this class of dynamical systems has peculiar properties with important consequences for the study of c...
[Phys. Rev. Lett. 122, 013904] Published Tue Jan 08, 2019
Author(s): Michael Schirber
Experiments demonstrate that a room in a house or office building could act as an analog computer processing the microwaves used for Wi-Fi.
[Physics 11, 124] Published Fri Nov 30, 2018
I have a treat with which to impress your friends at New Year’s Eve parties tomorrow night: a rollicking essay graciously contributed by a reader named Sebastian Oberhoff, about a unified and simplified way to prove all of Gödel’s Incompleteness Theorems, as well as Rosser’s Theorem, directly in terms of computer programs. In particular, this improves over my treatments in Quantum Computing Since Democritus and my Rosser’s Theorem via Turing machines post. While there won’t be anything new here for the experts, I loved the style—indeed, it brings back wistful memories of how I used to write, before I accumulated too many imaginary (and non-imaginary) readers tut-tutting at crass jokes over my shoulder. May 2019 bring us all the time and the courage to express ourselves authentically, even in ways that might be sneered at as incomplete, inconsistent, or unsound.
Author(s): R. Guo, M. Nečada, T. K. Hakala, A. I. Väkeväinen, and P. Törmä
We study lasing at the high-symmetry points of the Brillouin zone in a honeycomb plasmonic lattice. We use symmetry arguments to define singlet and doublet modes at the K points of the reciprocal space. We experimentally demonstrate lasing at the K points that is based on plasmonic lattice modes and...
[Phys. Rev. Lett. 122, 013901] Published Wed Jan 02, 2019
Author(s): Momchil Minkov, Ian A. D. Williamson, Meng Xiao, and Shanhui Fan
Metamaterials with an effective zero refractive index associated with their electromagnetic response are sought for a number of applications in communications and nonlinear optics. A promising way that this can be achieved in all-dielectric photonic crystals is through the design of a Dirac cone at ...
[Phys. Rev. Lett. 121, 263901] Published Thu Dec 27, 2018
Author(s): Haruki Watanabe and Ling Lu
The wide-range application of photonic crystals and metamaterials benefits from the enormous design space of three-dimensional subwavelength structures. In this Letter, we study the space group constraints on photonic dispersions for all 230 space groups with time-reversal symmetry. Our theory caref...
[Phys. Rev. Lett. 121, 263903] Published Fri Dec 28, 2018
Author(s): Shiqi Xia, Ajith Ramachandran, Shiqiang Xia, Denghui Li, Xiuying Liu, Liqin Tang, Yi Hu, Daohong Song, Jingjun Xu, Daniel Leykam, Sergej Flach, and Zhigang Chen
Flatband systems typically host “compact localized states” (CLS) due to destructive interference and macroscopic degeneracy of Bloch wave functions associated with a dispersionless energy band. Using a photonic Lieb lattice (LL), such conventional localized flatband states are found to be inherently...
[Phys. Rev. Lett. 121, 263902] Published Fri Dec 28, 2018
Author(s): Rodrigo Berte, Fabricio Della Picca, Martín Poblet, Yi Li, Emiliano Cortés, Richard V. Craster, Stefan A. Maier, and Andrea V. Bragas
The optical properties of small metallic particles allow us to bridge the gap between the myriad of subdiffraction local phenomena and macroscopic optical elements. The optomechanical coupling between mechanical vibrations of Au nanoparticles and their optical response due to collective electronic o...
[Phys. Rev. Lett. 121, 253902] Published Thu Dec 20, 2018
Author(s): Shaimaa I. Azzam, Vladimir M. Shalaev, Alexandra Boltasseva, and Alexander V. Kildishev
A bound state in the continuum (BIC) is a localized state of an open structure with access to radiation channels, yet it remains highly confined with, in theory, an infinite lifetime and quality factor. There have been many realizations of such exceptional states in dielectric systems without loss. ...
[Phys. Rev. Lett. 121, 253901] Published Thu Dec 20, 2018
Years ago, Benjamin Judkewitz wanted to try some new techniques out with laser scanning two-photon microscopy. However, the software we were using was rather cumbersome to modify. So he wrote his own software from scratch (which took him roughly one day). The result was lsmaq.
LSMAQ is a lightweight and flexible laser scanning microscope acquisition software written in MATLAB. It supports National Instruments hardware for galvo-based scanning.
It does the essentials: it sends scan mirror commands out, reads image data in, and makes images. It has a live view and can stream to disk. He worked from that baseline to create the modified versions he wanted. It was a useful starting point for other people in the lab as well. Tiago Branco used it as a basis for two-photon uncaging software. I used it for arbitrary line scanning software in dendritic patch and imaging experiments. (Tiago, Ben, and I all overlapped in the Hausser Lab.)
It’s also useful for learning. There are relatively few lines of code, and the layout is straightforward.
Now, it is publicly available on GitHub, thanks to Ben.
https://github.com/danionella/lsmaq
Author(s): Vedran Dunjko, Yimin Ge, and J. Ignacio Cirac
A hybrid quantum-classical computing algorithm could solve a basic computer science problem faster than a classical computer.
[Phys. Rev. Lett. 121, 250501] Published Tue Dec 18, 2018
Author(s): Mohammad Ramezani, Quynh Le-Van, Alexei Halpin, and Jaime Gómez Rivas
We demonstrate nonlinear emission from molecular layers strongly coupled to extended light fields in arrays of plasmonic nanoparticles in the presence of structural imperfections. Hybrid light-matter states, known as plasmon-exciton polaritons (PEPs), are formed by the strong coupling of Frenkel exc...
[Phys. Rev. Lett. 121, 243904] Published Fri Dec 14, 2018
Author(s): Alexandre Goy, Kwabena Arthur, Shuai Li, and George Barbastathis
Imaging systems’ performance at low light intensity is affected by shot noise, which becomes increasingly strong as the power of the light source decreases. In this Letter, we experimentally demonstrate the use of deep neural networks to recover objects illuminated with weak light and demonstrate be...
[Phys. Rev. Lett. 121, 243902] Published Wed Dec 12, 2018
Author(s): Claire Li, Valentina Krachmalnicoff, Patrick Bouchon, Julien Jaeck, Nathalie Bardou, Riad Haïdar, and Yannick De Wilde
The far-field spectral and near-field spatial responses of an individual metal-insulator-metal nanoantenna are reported, using thermal fluctuations as an internal source of the electromagnetic field. The far-field spectra, obtained by combining Fourier transform infrared spectroscopy with spatial mo...
[Phys. Rev. Lett. 121, 243901] Published Mon Dec 10, 2018
Author(s): Yonatan Sharabi, Hanan Herzig Sheinfux, Yoav Sagi, Gadi Eisenstein, and Mordechai Segev
We find that waves propagating in a 1D medium that is homogeneous in its linear properties but spatially disordered in its nonlinear coefficients undergo diffusive transport, instead of being Anderson localized as always occurs for linear disordered media. Specifically, electromagnetic waves in a mu...
[Phys. Rev. Lett. 121, 233901] Published Fri Dec 07, 2018
Principles and prospects for single-pixel imaging
Principles and prospects for single-pixel imaging, Published online: 03 December 2018; doi:10.1038/s41566-018-0300-7
Rather than requiring millions of pixels, it is possible to make a camera that only needs one pixel. This Review details the working principle, advantages, technical considerations and future potential of single-pixel imaging.