Resonant microcavity of microdisks using the confinement provided by partially oxidized GaAs and AlxGa1-xAs

• Grant number: 17/09481-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: July 01, 2017
• End date: June 30, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Newton Cesario Frateschi
• Grantee: Pedro Vinicius Pinho Nascimento
• Host Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

We shall develop microdisk resonators using confinement of "Whispering Galery Modes" type modes by the partial oxidation of AlxGa1-xAs layers. For this, initially we will develop an apparatus for selective oxidation of layers with AlxGa1-xAs alloys in epitaxial structures grown on GaAs substrates. The selective oxidation process developed will be characterized considering parameters of aluminum composition in the alloy, sample temperature and oxidant vapor flow. The student will become familiar with techniques of micro-fabrication, instrumentation besides conducting a study directed in the area of semiconductor lasers with emphasis on micro and nano lasers. Subsequently, the student will develop the resonators that will be characterized using the tapered fiber method. All work will be done at the Laboratório de Pesquisa em Dispositivos, Departamento de Física Aplicada, IFGW. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PALOMINO, GUSTAVO A. M.; PINHO, PEDRO V. N.; GARCIA, AILTON J., JR.; DENEKE, CHRISTOPH F.; FRATESCHI, NEWTON C.; IEEE. Fabrication of cylindrical resonant microcavities using the confinement provided by partially oxidized AlGaAs/GaAs layers. 2019 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC), v. N/A, p. 5-pg., 2019-01-01. (15/24517-8, 17/09481-2)