CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishWe have realized a differential Near-field Scanning Optical Microscope (NSOM) working with subwavelength resolution in the THz spectral region. The system employs a quantum cascade laser emitting at λ ~105 µm as source, and the method, differently from conventional NSOM, involves diffracting apertures with size comparable to the wavelength. This concept ensures a higher signal-to-noise level at the expense of an additional computational step. In the implementation here reported λ/10 resolution has been achieved; present limiting factors are investigated through finite difference time domain simulations.
| Titolo: | Differential Near-Field Scanning Optical Microscopy with THz quantum cascade laser sources | |
| Autori: | ||
| Data di pubblicazione: | 2009 | |
| Rivista: | ||
| Parole Chiave: | scanning probe microscopy; near field; THz | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1364/OE.17.023785 | |
| Handle: | http://hdl.handle.net/11384/12648 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
Copyright © 2021