@article{Liu2017,
title = {High-Performance Large-Scale Solar Steam Generation with Nanolayers of Reusable Biomimetic Nanoparticles},
author = {Liu, Changxu and Huang, Jianfeng and Hsiung, Chia-En and Tian, Yi and Wang, Jianjian and Han, Yu and Fratalocchi, Andrea},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/adsu.201600013},
doi = {10.1002/adsu.201600013},
year = {2017},
date = {2017-01-09},
journal = {Advanced Sustainable Systems},
volume = {1},
number = {1-2},
pages = {1600013},
abstract = {The harvesting of solar radiation for steam generation has drawn wide attention as a future sustainable technology for the renewable production of clean water worldwide. Here, a new super-dark metasurface of 200 nm thickness is presented, which reaches a solar thermal efficiency of 87\% when exposed to an intensity of only 2.3 sun, maintaining a stable efficiency of 90\% at higher solar intensities. The metasurface is composed of extremely robust nanoparticles, which are up to 98\% recyclable and can be produced on massively large scales by wet chemistry. By employing such reusable nanoparticles on an area of 1 m2, 1.2 kg of seawater can be purified within only 1 h under natural sunshine. With such excellent performances, this nanomaterial can open new applications of high-performance solar steam.},
keywords = {gold nanoparticles, plasmonics, solar–thermal conversion, water desalination},
pubstate = {published},
tppubtype = {article}
}

@article{art74,
title = {Energy equipartition and unidirectional emission in a spaser nanolaser},
author = {Juan Sebastian Totero Gongora and Andrey E Miroshnichenko and Yuri S Kivshar and Andrea Fratalocchi},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/lpor.201500239},
doi = {10.1002/lpor.201500239},
year = {2016},
date = {2016-01-01},
journal = {Laser & Photonics Reviews},
volume = {10},
number = {3},
pages = {432-440},
abstract = {Abstract A spaser is a nanoplasmonic counterpart of a laser, with photons replaced by surface plasmon polaritons and a resonant cavity replaced by a metallic nanostructure supporting localized plasmonic modes. By combining analytical results and first-principle numerical simulations, we provide a comprehensive study of the ultrafast dynamics of a spaser. Due to its highly-nonlinear nature, the spaser is characterized by a large number of interacting degrees of freedom, which sustain a rich manifold of different phases we discover, describe and analyze here. In the regime of strong interaction, the system manifests an irreversible ergodic evolution towards the configuration where energy is equally shared among all the available degrees of freedom. Under this condition, the spaser generates ultrafast vortex-like lasing modes that are spinning on the femtosecond scale and whose direction of rotation is dictated by quantum noise. In this regime, the spaser acquires the character of a nanoparticle with an effective spin. This opens up a range of interesting possibilities for achieving unidirectional emission from a symmetric nanostructure, stimulating a broad range of applications for nanoplasmonic lasers as unidirectional couplers and random information sources.},
keywords = {FDTD, nonlinear dynamics, plasmonic launcher, plasmonics, rotating dipole, spaser},
pubstate = {published},
tppubtype = {article}
}