A method to achieve photoinduced tuning of PhC nanocavity modes is discussed and implemented. It is based on light induced oxidation in air atmosphere with very low thermal budget which produces a local reduction of the GaAs membrane effective thickness and a large blueshift of the nanocavity modes. It is also shown that green light is much more efficient in inducing the micro-oxidation with respect to near infrared light. The observed behaviour is attributed to oxide growth promoted by photoenhanced reactivity.
Titolo: | Mode tuning of photonic crystal nanocavities by photoinduced non-thermal oxidation |
Autori: | Francesca, Intonti; Niccolò, Caselli; Silvia, Vignolini; Riboli, Francesco; Santosh, Kumar; Armando, Rastelli; Oliver G., Schmidt; Marco, Francardi; Annamaria, Gerardino; Laurent, Balet; Lianhe H., Li; Andrea, Fiore; Massimo, Gurioli |
Autori Unitn: | |
Titolo del periodico: | APPLIED PHYSICS LETTERS |
Anno di pubblicazione: | 2012 |
Codice identificativo Scopus: | 2-s2.0-84863043788 |
Codice identificativo ISI: | WOS:000299386800054 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1063/1.3678036 |
Handle: | http://hdl.handle.net/11572/98535 |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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