تقرير
Nanofocusing of Hyperbolic Phonon-Polaritons in a Tapered Boron Nitride Slab
| العنوان: | Nanofocusing of Hyperbolic Phonon-Polaritons in a Tapered Boron Nitride Slab |
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| المؤلفون: | Nikitin, A. Y., Yoxall, E., Schnell, M., Vélez, S., Dolado, I., Alonso-Gonzalez, P., Casanova, F., Hueso, L. E., Hillenbrand, R. |
| المصدر: | ACS Photon. 3, 924, 929, 2016 |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | Nanofocusing of light offers new technological opportunities for the delivery and manipulation of electromagnetic fields at sub-diffraction limited length scales. Here, we show that hyperbolic phonon polarity,HPP, modes in the mid infrared as supported by a hexagonal boron nitride, h-BN, slab can be nanofocused (i.e. both field enhanced and wavelength compressed) by propagation along a vertical taper. Via numerical simulations, we demonstrate that field enhancement factors of 90, for steep tapers, and wavelength compression of more than an order of magnitude for adiabatic tapers, can be expected. Employing scatteringtype scanning near field optical microscopy ,s SNOM, we provide for the first time proof of principle experimental evidence of a significant HPP wavelength compression. We expect these functionalities to provide diverse applications, from biosensing and non-linear optics to optical circuitry. Comment: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright \c{opyright} American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see: https://pubs.acs.org/doi/abs/10.1021/acsphotonics.6b00186Test |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1021/acsphotonics.6b00186 |
| الوصول الحر: | http://arxiv.org/abs/1805.00659Test |
| رقم الانضمام: | edsarx.1805.00659 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1021/acsphotonics.6b00186 |
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