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Quantitative infrared nanoscopy: Probe-cavity eigenmodes and nano-gap polaritons for strongly coupled nanoscale optics
Benjamin Allen, Brayden Lukaskawcez, Alyssa Bragg +6
Optical nanoscopies including near-field optical microscopy and spectroscopy circumvent the diffraction limit of conventional optics thanks to the nanoscale light focus emerging at…
Detection and Signal Processing for Near-Field Nanoscale Fourier Transform Infrared Spectroscopy
Jonathan M. Larson, Hans A. Bechtel, Robert Kostecki
Researchers from a broad spectrum of scientific and engineering disciplines are increasingly using near-field infrared spectroscopic techniques to characterize materials nondestruc…
Ultrahigh quality infrared polaritonic resonators based on bottom-up-synthesized van der Waals nanoribbons
Shang-Jie Yu, Yue Jiang, John A. Roberts +8
van der Waals nanomaterials supporting phonon polariton quasiparticles possess unprecedented light confinement capabilities, making them ideal systems for molecular sensing, therma…
Hybrid Machine Learning for Scanning Near-field Optical Spectroscopy
Xinzhong Chen, Ziheng Yao, Suheng Xu +11
The underlying physics behind an experimental observation often lacks a simple analytical description. This is especially the case for scanning probe microscopy techniques, where t…
THz Near-Field Imaging of Extreme Subwavelength Metal Structures
Xinzhong Chen, Xiao Liu, Xiangdong Guo +15
Modern scattering-type scanning near-field optical microscopy (s-SNOM) has become an indispensable tool in material research. However, as the s-SNOM technique marches into the far-…
Tunable intraband optical conductivity and polarization-dependent epsilon-near-zero behavior in black phosphorus
Souvik Biswas, William S. Whitney, Meir Y. Grajower +5
Black phosphorus (BP) offers considerable promise for infrared and visible photonics. Efficient tuning of the bandgap and higher subbands in BP by modulation of the Fermi level or…