scholarly journals Peakforce Infrared Micoscopy: Revealing Phonon Polaritons in Hexagonal Boron Nitride by Multipulse Peak Force Infrared Microscopy (Advanced Optical Materials 5/2020)

2020 ◽  
Vol 8 (5) ◽  
pp. 2070021
Author(s):  
Le Wang ◽  
Martin Wagner ◽  
Haomin Wang ◽  
Siuling Pau‐Sanchez ◽  
Jiahan Li ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Optical Materials ◽  
Hexagonal Boron Nitride ◽  
Peak Force ◽  
Infrared Microscopy ◽  
Phonon Polaritons

scholarly journals Revealing Phonon Polaritons in Hexagonal Boron Nitride by Multipulse Peak Force Infrared Microscopy

2019 ◽  
Vol 8 (5) ◽  
pp. 1901084 ◽  
Author(s):  
Le Wang ◽  
Martin Wagner ◽  
Haomin Wang ◽  
Siuling Pau‐Sanchez ◽  
Jiahan Li ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Peak Force ◽  
Infrared Microscopy ◽  
Phonon Polaritons

scholarly journals High-Q dark hyperbolic phonon-polaritons in hexagonal boron nitride nanostructures

Nanophotonics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1457-1467 ◽  
Author(s):  
Georg Ramer ◽  
Mohit Tuteja ◽  
Joseph R. Matson ◽  
Marcelo Davanco ◽  
Thomas G. Folland ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Cross Sections ◽  
Hexagonal Boron Nitride ◽  
Near Field ◽  
High Q ◽  
Surface Phonon Polaritons ◽  
Previous Hypothesis ◽  
Phonon Polaritons ◽  
Field Reflectance ◽  
Strong Confinement

AbstractThe anisotropy of hexagonal boron nitride (hBN) gives rise to hyperbolic phonon-polaritons (HPhPs), notable for their volumetric frequency-dependent propagation and strong confinement. For frustum (truncated nanocone) structures, theory predicts five, high-order HPhPs, sets, but only one set was observed previously with far-field reflectance and scattering-type scanning near-field optical microscopy. In contrast, the photothermal induced resonance (PTIR) technique has recently permitted sampling of the full HPhP dispersion and observing such elusive predicted modes; however, the mechanism underlying PTIR sensitivity to these weakly-scattering modes, while critical to their understanding, has not yet been clarified. Here, by comparing conventional contact- and newly developed tapping-mode PTIR, we show that the PTIR sensitivity to those weakly-scattering, high-Q (up to ≈280) modes is, contrary to a previous hypothesis, unrelated to the probe operation (contact or tapping) and is instead linked to PTIR ability to detect tip-launched dark, volumetrically-confined polaritons, rather than nanostructure-launched HPhPs modes observed by other techniques. Furthermore, we show that in contrast with plasmons and surface phonon-polaritons, whose Q-factors and optical cross-sections are typically degraded by the proximity of other nanostructures, the high-Q HPhP resonances are preserved even in high-density hBN frustum arrays, which is useful in sensing and quantum emission applications.

The Effect of Adjacent Materials on the Propagation of Phonon Polaritons in Hexagonal Boron Nitride

2017 ◽  
Vol 8 (13) ◽  
pp. 2902-2908 ◽  
Author(s):  
Kris S. Kim ◽  
Daniel Trajanoski ◽  
Kevin Ho ◽  
Leonid Gilburd ◽  
Aniket Maiti ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons

Hexagonal Boron Nitride Self-Launches Hyperbolic Phonon Polaritons

2017 ◽  
Vol 8 (10) ◽  
pp. 2158-2162 ◽  
Author(s):  
Leonid Gilburd ◽  
Kris S. Kim ◽  
Kevin Ho ◽  
Daniel Trajanoski ◽  
Aniket Maiti ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons

Photon Tunneling via Coupling Graphene Plasmons With Phonon Polaritons of Hexagonal Boron Nitride in Reststrahlen Bands

2021 ◽  
Author(s):  
Ruiyi Liu ◽  
Xiaohu Wu ◽  
Zheng Cui
Keyword(s):  
Boron Nitride ◽  
Chemical Potential ◽  
Hexagonal Boron Nitride ◽  
Near Field ◽  
Tunneling Probability ◽  
Coupling Mechanism ◽  
Work Study ◽  
Photon Tunneling ◽  
Phonon Polaritons ◽  
Graphene Plasmons

Abstract The photon tunneling probability is the most important thing in near-field radiative heat transfer (NFRHT). This work study the photon tunneling via coupling graphene plasmons with phonon polaritons in hexagonal boron nitride (hBN). We consider two cases of the optical axis of hBN along z-axis and x-axis, respectively. We investigate the NFRHT between graphene-covered bulk hBN, and compare it with that of bare bulk hBN. Our results show that in Reststrahlen bands, the coupling of graphene plasmons and phonon polaritons in hBN can either suppress or enhance the photon tunneling probability, depending on the chemical potential of graphene and frequency. This conclusion holds when the optiacal axis of hBN is either along z-axis or x-axis. The findings in this work not only deepen our understanding of coupling mechanism between graphene plasmons with phonon polaritons, but also provide a theoretical basis for controlling photon tunneling in graphene covered hyperbolic materials.

Imaging of Ultra-Confined Phonon Polaritons in Hexagonal Boron Nitride on Gold

2018 ◽  
Author(s):  
Antonio Ambrosio ◽  
Michele Tamagnone ◽  
Kundan Chaudhary ◽  
Luis A. Jauregui ◽  
Philip Kim ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons

scholarly journals Mechanical Detection and Imaging of Hyperbolic Phonon Polaritons in Hexagonal Boron Nitride

ACS Nano ◽  
2017 ◽  
Vol 11 (9) ◽  
pp. 8741-8746 ◽  
Author(s):  
Antonio Ambrosio ◽  
Luis A. Jauregui ◽  
Siyuan Dai ◽  
Kundan Chaudhary ◽  
Michele Tamagnone ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons ◽  
Mechanical Detection

scholarly journals Imaging of Anomalous Internal Reflections of Hyperbolic Phonon-Polaritons in Hexagonal Boron Nitride

Nano Letters ◽  
2016 ◽  
Vol 16 (6) ◽  
pp. 3858-3865 ◽  
Author(s):  
Alexander J. Giles ◽  
Siyuan Dai ◽  
Orest J. Glembocki ◽  
Andrey V. Kretinin ◽  
Zhiyuan Sun ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons

Direct observation of highly confined phonon polaritons in suspended monolayer hexagonal boron nitride

2020 ◽  
Vol 20 (1) ◽  
pp. 43-48
Author(s):  
Ning Li ◽  
Xiangdong Guo ◽  
Xiaoxia Yang ◽  
Ruishi Qi ◽  
Tianyu Qiao ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Direct Observation ◽  
Hexagonal Boron Nitride ◽  
Phonon Polaritons
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