Spatial steadiness of individual disorder modes upon controlled spectral tuning
Recent innovative applications in disordered photonics would strongly benefit from the possibility to achieve spectral tuning of the individual disorder localized photonic modes without affecting their spatial distributions. Here, we design and fabricate a two-dimensional disordered photonic system,...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2016-07-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/1.4946852 |
| _version_ | 1817988383998214144 |
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| author | Niccolò Caselli Francesco Riboli Francesca Intonti Federico La China Francesco Biccari Annamaria Gerardino Massimo Gurioli |
| author_facet | Niccolò Caselli Francesco Riboli Francesca Intonti Federico La China Francesco Biccari Annamaria Gerardino Massimo Gurioli |
| author_sort | Niccolò Caselli |
| collection | DOAJ |
| description | Recent innovative applications in disordered photonics would strongly benefit from the possibility to achieve spectral tuning of the individual disorder localized photonic modes without affecting their spatial distributions. Here, we design and fabricate a two-dimensional disordered photonic system, made of a GaAs slab patterned with randomly distributed circular air scattering centers, supporting localized light modes with very small modal volume. The photoluminescence of InAs quantum dots embedded in the slab is used as a probe for near field experiments and gives direct access to the electric field intensity distribution of the localized random modes. We demonstrate that laser assisted oxidation of the GaAs slab performed by near field illumination can be used for a gentle tuning of the individual random modes without modifying the subtle balance leading to light localization given by multiple scattering. |
| first_indexed | 2024-04-14T00:33:34Z |
| format | Article |
| id | doaj.art-eb6f4cabc9b043928f05ad2dc3aa0c28 |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-04-14T00:33:34Z |
| publishDate | 2016-07-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-eb6f4cabc9b043928f05ad2dc3aa0c282022-12-22T02:22:28ZengAIP Publishing LLCAPL Photonics2378-09672016-07-0114041301041301-710.1063/1.4946852014601APPSpatial steadiness of individual disorder modes upon controlled spectral tuningNiccolò Caselli0Francesco Riboli1Francesca Intonti2Federico La China3Francesco Biccari4Annamaria Gerardino5Massimo Gurioli6European Laboratory for Nonlinear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, ItalyDepartment of Physics, University of Trento, via Sommarive 14, I-38123 Povo, TN, ItalyEuropean Laboratory for Nonlinear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, ItalyEuropean Laboratory for Nonlinear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, ItalyEuropean Laboratory for Nonlinear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, ItalyInstitute of Photonics and Nanotechnology, CNR, I-00156 Roma, ItalyEuropean Laboratory for Nonlinear Spectroscopy, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI, ItalyRecent innovative applications in disordered photonics would strongly benefit from the possibility to achieve spectral tuning of the individual disorder localized photonic modes without affecting their spatial distributions. Here, we design and fabricate a two-dimensional disordered photonic system, made of a GaAs slab patterned with randomly distributed circular air scattering centers, supporting localized light modes with very small modal volume. The photoluminescence of InAs quantum dots embedded in the slab is used as a probe for near field experiments and gives direct access to the electric field intensity distribution of the localized random modes. We demonstrate that laser assisted oxidation of the GaAs slab performed by near field illumination can be used for a gentle tuning of the individual random modes without modifying the subtle balance leading to light localization given by multiple scattering.http://dx.doi.org/10.1063/1.4946852 |
| spellingShingle | Niccolò Caselli Francesco Riboli Francesca Intonti Federico La China Francesco Biccari Annamaria Gerardino Massimo Gurioli Spatial steadiness of individual disorder modes upon controlled spectral tuning APL Photonics |
| title | Spatial steadiness of individual disorder modes upon controlled spectral tuning |
| title_full | Spatial steadiness of individual disorder modes upon controlled spectral tuning |
| title_fullStr | Spatial steadiness of individual disorder modes upon controlled spectral tuning |
| title_full_unstemmed | Spatial steadiness of individual disorder modes upon controlled spectral tuning |
| title_short | Spatial steadiness of individual disorder modes upon controlled spectral tuning |
| title_sort | spatial steadiness of individual disorder modes upon controlled spectral tuning |
| url | http://dx.doi.org/10.1063/1.4946852 |
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