Fano Resonance in GaAs 2D Photonic Crystal Nanocavities

Journal Article · Thu Dec 22 23:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3666722· OSTI ID:21612368

Valentim, P T; Guimaraes, P.S. S. ^[1]; Luxmoore, I J; Szymanski, D; Whittaker, D M; Fox, A M; Skolnick, M S ^[2]; Vasco, J P ^[3]; Vinck-Posada, H ^[4]

---

1. Departamento de Fisica, Universidade Federal de Minas Gerais, Belo Horizonte (Brazil)
2. Department of Physics and Astronomy, University of Sheffield, Sheffield (United Kingdom)
3. Instituto de Fisica, Universidad de Antioquia, Medellin (Colombia)
4. Departamento de Fisica, Facultad de Ciencias, Universidad Nacional de Colombia, Bogota (Colombia)

We report the results of polarization resolved reflectivity experiments in GaAs air-bridge photonic crystals with L3 cavities. We show that the fundamental L3 cavity mode changes, in a controlled way, from a Lorentzian symmetrical lineshape to an asymmetrical form when the linear polarization of the incident light is rotated in the plane of the crystal. The different lineshapes are well fitted by the Fano asymmetric equation, implying that a Fano resonance is present in the reflectivity. We use the scattering matrix method to model the Fano interference between a localized discrete state (the cavity fundamental mode) and a background of continuum states (the light reflected from the crystal slab in the vicinity of the cavity) with very good agreement with the experimental data.

• OSTI ID: 21612368
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1399; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ARSENIC COMPOUNDS
ARSENIDES
ASYMMETRY
BOSONS
CRYSTALS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INTERFERENCE
MASSLESS PARTICLES
MATERIALS
MATRICES
NANOSTRUCTURES
OPTICAL PROPERTIES
PHOTONS
PHYSICAL PROPERTIES
PNICTIDES
POLARIZATION
RADIATIONS
REFLECTIVITY
RESONANCE
S MATRIX
SCATTERING
SEMICONDUCTOR MATERIALS
SURFACE PROPERTIES
VISIBLE RADIATION