The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Phonon polaritons in van der Waals materials reveal significant confinement accompanied with long propagation length: important virtues for tasks pertaining to the control of light and energy flow at the nanoscale. While previous studies of phonon polaritons have relied on relatively thick samples, here reported is the first observation of surface phonon polaritons in single atomic layers and bilayers...
In article number 1800072, Josué J. López and co‐workers use photothermal microscopy to measure the near‐field absorption of nanostructured hexagonal boron nitride (h‐BN) and reveal a large photothermal expansion in the nanostructures. This effect is attributed to the anisotropy of the thermal expansion coefficients of h‐BN and the nanostructuring implemented. The photothermal expansion should be...
The controlled nanoscale patterning of 2D materials is a promising approach for engineering the optoelectronic, thermal, and mechanical properties of these materials to achieve novel functionalities and devices. Herein, high‐resolution patterning of hexagonal boron nitride (h‐BN) is demonstrated via both helium and neon ion beams and an optimal dosage range for both ions that serve as a baseline for...
Graphene-boron nitride (BN) heterostructures provide a versatile platform to flexibly tune the sign of the group velocity of the hybrid plasmon-phonon-polaritons, enabling all-angle negative refraction between graphene plasmons, BN's phonon polaritons and their hybrid polaritons.
In this work we show that by imbuing extremely highly confined polaritons with orbital angular momentum it is possible to induce new electronic selection rules in a controllable fashion.
We show that mid-IR polaritons in polar dielectrics can be used to develop an atomic emitter of photon pairs at quantum efficiencies over 90%, suggesting a new route towards the production of entangled light.
We demonstrate that combining Purcell-enhancement engineering, graphene plasmonics, and radiative cascade can result in a new type of UV emitter whose properties can tuned by electrically doping graphene.
We demonstrate that using 2D plasmons, the emission of entangled plasmon pairs can be enhanced by up to 15 orders of magnitude, corresponding to sub-nanosecond lifetimes, potentially allowing for ultrafast generation of entangled light.
We demonstrate that 2D plasmons can enable very high-order multipolar transitions and singlet-triplet transitions. In fact, transitions whose lifetimes are normally on the order of the age of the universe can happen in nanoseconds.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.