Title :
Transmission of THz pulses through 3µm apertures: applications for near-field microscopy
Author :
Macfaden, Alexander J. ; Reno, John L. ; Brener, Igal ; Mitrofanov, Oleg
Author_Institution :
Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
We demonstrate that THz pulses transmitted through small apertures (~λ/100) exhibit strong evanescent components within 1μm of the aperture. Using this effect, we developed sub-wavelength aperture THz near-field probes that provide 3μm resolution.
Keywords :
high-speed optical techniques; light transmission; near-field scanning optical microscopy; probes; THz pulses transmission; evanescent components; near-field microscopy; subwavelength aperture THz near-field probes; Apertures; Detectors; Microscopy; Probes; Sensitivity; Spatial resolution;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
