Phase imaging and detection in pseudo-heterodyne scattering scanning near-field optical microscopy measurements
When considering the pseudo-heterodyne mode for detection of the modulus and phase of the near field from scattering scanning near-field optical microscopy (s-SNOM) measurements, processing only the modulus of the signal may produce an undesired constraint in the accessible values of the phase of th...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/17601 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/17601 |
| Access Level: | acceso abierto |
| Palabra clave: | 535.14 535.82 Phase measurement Near-field microscopy Surface plasmons Nanophotonics and photonic crystals Electromagnetismo Óptica (Física) Optoelectrónica 2202 Electromagnetismo 2209.19 Óptica Física |
| Sumario: | When considering the pseudo-heterodyne mode for detection of the modulus and phase of the near field from scattering scanning near-field optical microscopy (s-SNOM) measurements, processing only the modulus of the signal may produce an undesired constraint in the accessible values of the phase of the near field. A two-dimensional analysis of the signal provided by the data acquisition system makes it possible to obtain phase maps over the whole [0, 2 |
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