J 2019

Resolving the temporal evolution of line broadening in single quantum emitters

SCHIMPF, Christian, Marcus REINDL, Petr KLENOVSKÝ, Thomas FROMHERZ, Saimon F. Covre DA SILVA et. al.

Basic information

Original name

Resolving the temporal evolution of line broadening in single quantum emitters

Authors

SCHIMPF, Christian (40 Austria), Marcus REINDL (40 Austria), Petr KLENOVSKÝ (203 Czech Republic, guarantor, belonging to the institution), Thomas FROMHERZ (40 Austria), Saimon F. Covre DA SILVA (40 Austria), Julian HOFER (276 Germany), Christian SCHNEIDER (276 Germany), Sven HOEFLING (276 Germany), Rinaldo TROTTA (380 Italy) and Armando RASTELLI (380 Italy)

Edition

Optics Express, 2019, 1094-4087

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10306 Optics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.669

RIV identification code

RIV/00216224:14310/19:00111388

Organization unit

Faculty of Science

DOI

UT WoS

000603035500064

Keywords in English

Resolving spectral resolution to Fourier limit;Photon correlated Fourier spectroscopy;Quantum dot

Tags

International impact, Reviewed
Změněno: 20/1/2021 11:45, Mgr. Marie Šípková, DiS.

Abstract

V originále

Light emission from solid-state quantum emitters is inherently prone to environmental decoherence, which results in a line broadening and in the deterioration of photon indistinguishability. ere we employ photon correlation Fourier spectroscopy (PCFS) to study the temporal evolution of such a broadening in two prominent systems: GaAs and In(Ga)As quantum dots. Differently from previous experiments, the emitters are driven with short laser pulses as required for the generation of high-purity single photons, the time scales we probe range from a few nanoseconds to milliseconds and, simultaneously, the spectral resolution we achieve can be as small as ~2µeV. We find pronounced differences in the temporal evolution of different optical transition lines, which we attribute to differences in their homogeneous linewidth and sensitivity to charge noise. We analyze the effect of irradiation with additional white light, which reduces blinking at the cost of enhanced charge noise. Due to its robustness against experimental imperfections and its high temporal resolution and bandwidth, PCFS outperforms established spectroscopy techniques, such as Michelson interferometry. We discuss its practical implementation and the possibility to use it to estimate the indistinguishability of consecutively emitted single photons for applications in quantum communication and photonic-based quantum information processing.

Links

LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
7AMB17AT044, research and development project
Name: Studium excitonové struktury kvantových teček typu II pomocí Fourierovské spektroskopie založené na měření jednofotonové korelace
Investor: Ministry of Education, Youth and Sports of the CR
8C18001, research and development project
Name: CMOS Compatible Single Photon Sources based on SiGe Quantum Dots (Acronym: CUSPIDOR)
Investor: Ministry of Education, Youth and Sports of the CR, QUANTERA