Single photons sources on multimodal GaAs photonic integrated circuits using resonant excitation

• Grant number: 21/10249-2
• Support Opportunities: Scholarships abroad - Research
• Start date: February 01, 2022
• End date: January 31, 2023
• Field of knowledge: Engineering - Electrical Engineering
• Principal Investigator: Emerson Gonçalves de Melo
• Grantee: Emerson Gonçalves de Melo
• Host Investigator: Marcelo Davanco
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• Institution abroad: National Institute of Standards and Technology (NIST), United States

Abstract

Among the platforms used for the development of quantum information systems, photonic integrated circuits are very promising for the generation, manipulation, and detection of qubits - the basic quantum information unit - due to their high stability, reconfigurability, and scalability. This makes them ideal candidates for the development of disruptive technologies that allow the application of unique quantum mechanical concepts, such as superposition and entanglement, to significantly improve the characteristics related to the capacity, speed, and safety of various tasks currently performed by classical systems. Nowadays, a huge scientific and technological challenge is to obtain a single-photon emitter that perfectly meets the high purity, indistinguishability, and brightness criteria necessary for advanced photonic quantum systems. In this document, I propose a work to study, fabricate and characterize a single-photon source based on InAs quantum dots embedded in monolithic GaAs photonic circuits. The work aims to provide a high spontaneous emission rate, allow on-chip resonant excitation and single-photon collection, in addition to addressing important fabrication constraints for improved emitter performance. Besides the contributions to the development of photonic quantum systems, the work has the potential to explore issues related to the inverse design of integrated photonic circuits and also allow for a deeper discussion on the effects of fabrication processes over the quantum dots emission. (AU)

Scientific publications

(4)

(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)

MELO, EMERSON G.; ESHBAUGH, WILLIAM; FLAGG, EDWARD B.; DAVANCO, MARCELO. Inverse design of a polarization demultiplexer for on-chip path-entangled photon-pair sources based on single quantum dots. OPTICS LETTERS, v. 48, n. 17, p. 4-pg., 2023-09-01. (21/10249-2)

CHANANA, ASHISH; LAROCQUE, HUGO; MOREIRA, RENAN; CAROLAN, JACQUES; GUHA, BISWARUP; MELO, EMERSON G.; ANANT, VIKAS; SONG, JINDONG; ENGLUND, DIRK; BLUMENTHAL, DANIEL J.; et al. Ultra-low loss quantum photonic circuits integrated with single quantum emitters. NATURE COMMUNICATIONS, v. 13, n. 1, p. 10-pg., 2022-12-12. (21/10249-2)

MORAES, FLAVIO; DE AGUIAR, GARBRIEL H. M.; DE MELO, EMERSON G.; WIEDERHECKER, GUSTAVO S.; ALEGRE, THIAGO P. MAYER. Optimization of diamond optomechanical crystal cavities. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, v. 39, n. 10, p. 7-pg., 2022-10-01. (20/00119-1, 18/15577-5, 18/15580-6, 21/10249-2, 18/25339-4, 20/00100-9)

MELO, EMERSON G.; ESHBAUGH, WILLIAM; FLAGG, EDWARD B.; DAVANCO, MARCELO. Multiobjective Inverse Design of Solid-State Quantum Emitter Single-Photon Sources. ACS PHOTONICS, v. N/A, p. 9-pg., 2022-09-19. (21/10249-2)