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: | ; ; ; |
|---|---|
| Tipo de documento: | Artigo |
| Data de publicação: | 2017 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositório: | Docta Complutense |
| Idioma: | Inglês |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/17601 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/17601 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | 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 |
| Resumo: | 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 |
|---|