Internal Nanostructure Diagnosis with Hyperbolic Phonon Polaritons in Hexagonal Boron Nitride.

Imaging materials and inner structures with resolution below the diffraction limit has become of fundamental importance in recent years for a wide variety of applications. We report subdiffractive internal structure diagnosis of hexagonal boron nitride by exciting and imaging hyperbolic phonon polaritons. On the basis of their unique propagation properties, we are able to accurately locate defects in the crystal interior with nanometer resolution. The precise location, size, and geometry of the concealed defects are reconstructed by analyzing the polariton wavelength, reflection coefficient, and their dispersion. We have also studied the evolution of polariton reflection, transmission, and scattering as a function of defect size and photon frequency. The nondestructive high-precision polaritonic structure diagnosis technique introduced here can be also applied to other hyperbolic or waveguide systems and may be deployed in the next-generation biomedical imaging, sensing, and fine structure analysis.

[1]  D. Englund,et al.  Probing the ultimate plasmon confinement limits with a van der Waals heterostructure , 2018, Science.

[2]  R. Hillenbrand,et al.  Infrared hyperbolic metasurface based on nanostructured van der Waals materials , 2018, Science.

[3]  Xiao Lin,et al.  Group‐Velocity‐Controlled and Gate‐Tunable Directional Excitation of Polaritons in Graphene‐Boron Nitride Heterostructures , 2018, 1802.08462.

[4]  Yichen Shen,et al.  Multifrequency superscattering from subwavelength hyperbolic structures , 2018, 1802.08600.

[5]  I. Vurgaftman,et al.  Ultralow-loss polaritons in isotopically pure boron nitride. , 2018, Nature materials.

[6]  Hongsheng Chen,et al.  Confined transverse electric phonon polaritons in hexagonal boron nitrides , 2017 .

[7]  Kenji Watanabe,et al.  Manipulation and Steering of Hyperbolic Surface Polaritons in Hexagonal Boron Nitride , 2017, Advanced materials.

[8]  M. Goldflam,et al.  Relative efficiency of polariton emission in two-dimensional materials , 2017, 1704.05618.

[9]  Xiao Lin,et al.  All-angle negative refraction of highly squeezed plasmon and phonon polaritons in graphene–boron nitride heterostructures , 2016, Proceedings of the National Academy of Sciences.

[10]  F. Guinea,et al.  Polaritons in layered two-dimensional materials. , 2016, Nature materials.

[11]  D. N. Basov,et al.  Polaritons in van der Waals materials , 2016, Science.

[12]  Jonghwan Kim,et al.  Soliton-dependent plasmon reflection at bilayer graphene domain walls. , 2016, Nature materials.

[13]  Xiaoxia Yang,et al.  Far-field nanoscale infrared spectroscopy of vibrational fingerprints of molecules with graphene plasmons , 2016, Nature Communications.

[14]  K. Novoselov,et al.  Gain modulation by graphene plasmons in aperiodic lattice lasers , 2016, Science.

[15]  Xiaoji G. Xu,et al.  Scattering-type scanning near-field optical microscopy with reconstruction of vertical interaction , 2015, Nature Communications.

[16]  Frank H. L. Koppens,et al.  Direct observation of ultraslow hyperbolic polariton propagation with negative phase velocity , 2015, Nature Photonics.

[17]  Valerio Pruneri,et al.  Mid-infrared plasmonic biosensing with graphene , 2015, Science.

[18]  H. Bechtel,et al.  Amplitude- and Phase-Resolved Nanospectral Imaging of Phonon Polaritons in Hexagonal Boron Nitride , 2015 .

[19]  Igor Aharonovich,et al.  Quantum emission from hexagonal boron nitride monolayers , 2015, 2016 Conference on Lasers and Electro-Optics (CLEO).

[20]  Arka Majumdar,et al.  Monolayer semiconductor nanocavity lasers with ultralow thresholds , 2015, Nature.

[21]  Benjamin J. M. Brenny,et al.  Nanoscale optical tomography with cathodoluminescence spectroscopy. , 2015, Nature nanotechnology.

[22]  F. Keilmann,et al.  Subdiffractional focusing and guiding of polaritonic rays in a natural hyperbolic material , 2015, Nature Communications.

[23]  K. Novoselov,et al.  Hyperbolic phonon-polaritons in boron nitride for near-field optical imaging and focusing , 2015, Nature Communications.

[24]  M. Goldflam,et al.  Graphene on hexagonal boron nitride as a tunable hyperbolic metamaterial. , 2015, Nature nanotechnology.

[25]  Siegfried Janz,et al.  Waveguide sub‐wavelength structures: a review of principles and applications , 2015 .

[26]  G. Vignale,et al.  Highly confined low-loss plasmons in graphene-boron nitride heterostructures. , 2014, Nature materials.

[27]  Xiaoji G. Xu,et al.  One-dimensional surface phonon polaritons in boron nitride nanotubes , 2014, Nature Communications.

[28]  R. Hillenbrand,et al.  Recovery of permittivity and depth from near-field data as a step toward infrared nanotomography. , 2014, ACS nano.

[29]  Minghui Hong,et al.  Sub-diffractional volume-confined polaritons in the natural hyperbolic material hexagonal boron nitride , 2014, Nature Communications.

[30]  A. H. Castro Neto,et al.  Tunable Phonon Polaritons in Atomically Thin van der Waals Crystals of Boron Nitride , 2014, Science.

[31]  Wenjuan Zhu,et al.  Graphene plasmon enhanced vibrational sensing of surface-adsorbed layers. , 2014, Nano letters.

[32]  F. Speck,et al.  Strong plasmon reflection at nanometer-size gaps in monolayer graphene on SiC. , 2013, Nano letters.

[33]  Min Seok Jang,et al.  Highly confined tunable mid-infrared plasmonics in graphene nanoresonators. , 2013, Nano letters.

[34]  P. Ajayan,et al.  Gated tunability and hybridization of localized plasmons in nanostructured graphene. , 2013, ACS nano.

[35]  M. Raschke,et al.  Nano-optical imaging and spectroscopy of order, phases, and domains in complex solids , 2012 .

[36]  C. N. Lau,et al.  Gate-tuning of graphene plasmons revealed by infrared nano-imaging , 2012, Nature.

[37]  S. Thongrattanasiri,et al.  Optical nano-imaging of gate-tunable graphene plasmons , 2012, Nature.

[38]  H. Bechtel,et al.  Graphene plasmonics for tunable terahertz metamaterials. , 2011, Nature nanotechnology.

[39]  Shanhui Fan,et al.  Elements for Plasmonic Nanocircuits with Three‐Dimensional Slot Waveguides , 2010, Advanced materials.

[40]  P. Midgley,et al.  Electron tomography and holography in materials science. , 2009, Nature materials.

[41]  N. Halas,et al.  Nano-optics from sensing to waveguiding , 2007 .

[42]  G. Shvets,et al.  Near-Field Microscopy Through a SiC Superlens , 2006, Science.

[43]  B. Hecht,et al.  Principles of nano-optics , 2006 .

[44]  Lukas Novotny,et al.  Principles of Nano-Optics by Lukas Novotny , 2006 .