| Full text | |
| Author(s): |
Jimenez-Villar, Ernesto
[1, 2]
;
Xavier, M. C. S.
[1, 3]
;
Wetter, Niklaus U.
[2]
;
Mestre, Valdeci
[4]
;
Martins, Weliton S.
[5]
;
Basso, Gabriel F.
[6]
;
Ermakov, V. A.
[7]
;
Marques, F. C.
[7]
;
de Sa, Gilberto F.
[8]
Total Authors: 9
|
| Affiliation: | [1] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba - Brazil
[2] CNEN IPEN, Inst Pesquisas Energet & Nucl, BR-05508000 Sao Paulo, SP - Brazil
[3] Univ Estadual Paraiba, Dept Fis, BR-58233000 Araruna, PB - Brazil
[4] Univ Estadual Paraiba, CCEA, BR-58706560 Patos de Minas, PB - Brazil
[5] Univ Fed Rural Pernambuco, Dept Fis, BR-52171900 Recife, PE - Brazil
[6] Univ Fed Paraiba, Dept Informat, BR-58055000 Joao Pessoa, Paraiba - Brazil
[7] Univ Estadual Campinas, Dept Fis Aplicada, BR-13083859 Campinas, SP - Brazil
[8] Univ Fed Pernambuco, Quim Fundamental, BR-50670901 Recife, PE - Brazil
Total Affiliations: 8
|
| Document type: | Journal article |
| Source: | PHOTONICS RESEARCH; v. 6, n. 10, p. 929-942, OCT 1 2018. |
| Web of Science Citations: | 3 |
| Abstract | |
There has been a growing interest in disordered optical media in recent years due to their potential applications in solar collectors, random lasers, light confinement, and other advanced photonic functions. This paper studies the transport of light for different incidence angles in a strongly disordered optical medium composed of core-shell TiO2@Silica nanoparticles suspended in an ethanol solution. A decrease of optical conductance and an increase of absorption near the input border are reported when the incidence angle increases. The specular reflection, measured for the photons that enter the sample, is lower than the effective internal reflection undergone by the coherently backscattered photons in the exact opposite direction, indicating a nonreciprocal propagation of light. This study represents a novel approach in order to understand the complex physics involved at the phase transition to localization. (C) 2018 Chinese Laser Press (AU) | |
| FAPESP's process: | 12/10127-5 - Research and development of nanostructured materials for electronic and surface physics applications |
| Grantee: | Fernando Alvarez |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/10765-5 - Highly efficient low threshold lasers in transparent and scattering media. |
| Grantee: | Niklaus Ursus Wetter |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/05854-9 - Localization of light an avenue for manufacturing advanced photonic devices |
| Grantee: | Niklaus Ursus Wetter |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |