2021
DOI: 10.1039/d1nr01701b
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Anisotropic acoustic phonon polariton-enhanced infrared spectroscopy for single molecule detection

Abstract: Nanoscale Fourier transforms infrared spectroscopy (nano-FTIR) based on scanning probe microscopy enables identification of chemical composition and structure of surface species with a high spatial resolution (~10 nm), which is...

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Cited by 15 publications
(17 citation statements)
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“…Surface photonic poloritons widely exist in polar crystals such as molybdenum trioxide (MoO 3 ) and hexagonal boron nitride (hBN). [ 57 ] A recent work has shown that a monolayer of polar material located at a few nanometers distance above a metal substrate can support dispersionless photonic polaritons, [ 58 ] providing an enticing platform for broadband efficient Cherenkov radiation in mid‐infrared (mid‐IR) frequencies. Our findings thus facilitate the applications of Cherenkov radiation in highly desired THz/mid‐IR/X‐ray free‐electron radiation sources and novel‐type Cherenkov radiation based photodynamic therapy.…”
Section: Discussionmentioning
confidence: 99%
“…Surface photonic poloritons widely exist in polar crystals such as molybdenum trioxide (MoO 3 ) and hexagonal boron nitride (hBN). [ 57 ] A recent work has shown that a monolayer of polar material located at a few nanometers distance above a metal substrate can support dispersionless photonic polaritons, [ 58 ] providing an enticing platform for broadband efficient Cherenkov radiation in mid‐infrared (mid‐IR) frequencies. Our findings thus facilitate the applications of Cherenkov radiation in highly desired THz/mid‐IR/X‐ray free‐electron radiation sources and novel‐type Cherenkov radiation based photodynamic therapy.…”
Section: Discussionmentioning
confidence: 99%
“…Polaritons are the result of the coupling of photons with polar excitations in materials, 1,2 can realize deep sub-wavelength light field confinement and light-matter interacting enhance-ment, offering benefits such as super-resolution imaging 3 and resonant THz detection. 4 Accordingly, polaritons are essential elements in modern nanophotonic applications such as single-molecular sensing, 5,6 on-chip photonic circuits, 7,8 and high-capacity non-volatile memory. 9,10 More recently, the combination of polaritons and Fabry-Perot (F-P) resonances has shown impressive application prospects in ultracompact sensing, 11,12 quantum nano-optics, 13 and nonlinear nanooptics 14 owing to its nanoscale volume and high Q factor.…”
Section: Introductionmentioning
confidence: 99%
“…Spectroscopic techniques were widely used in virus detection, including Raman [20][21][22], infrared [23][24][25][26][27], mass spectrophotometry [28][29][30][31] and fluorescence spectroscopy [32][33][34]. In this review, the reported stateof-the-art spectroscopic methods for the COVID-19 detection and early diagnosis were discussed.…”
Section: Introductionmentioning
confidence: 99%