Terahertz imaging with nanometer resolution

By Houtong Chen, R. Kersting, G. Cho. 2003

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Toward real-time terahertz imaging (2018, unknown): “15 THz) [196] and 150 nm (λ∕1000 at 2 THz) [197] were achieved.”
Review of Near-Field Terahertz Measurement Methods and Their Applications (2011, background): “Direct reflection is filtered thanks to the modulation of the tip/sample distance [46].”
Terahertz Frequency Sensing and Imaging: A Time of Reckoning Future Applications? (2005, methodology): “equally noteworthy are other innovative research efforts that seek to develop techniques for THz imaging at the microscopic [85]–[88] and nanoscale levels [89], [90].”
Terahertz Imaging and Sensing Applications With Silicon-Based Technologies (2019, background): “high-power sources and cooled detectors [132]–[134], [136], [137] long integration times are needed for reasonable sensitivity, making real-time visualization very challenging.”
Imaging with terahertz radiation (2007, methodology): “(left) A schematic of the conventional experimental arrangement for apertureless nearfield microscopy, as pioneered by Inouye and Kawata [181] and as implemented in the THz range by several groups [34,37,204].”