Single-Mode Emission in InP Microdisks on Si Using Au Antenna.
Journal
ACS photonics
ISSN: 2330-4022
Titre abrégé: ACS Photonics
Pays: United States
ID NLM: 101634366
Informations de publication
Date de publication:
20 Apr 2022
20 Apr 2022
Historique:
received:
31
10
2021
entrez:
28
4
2022
pubmed:
29
4
2022
medline:
29
4
2022
Statut:
ppublish
Résumé
An important building block for on-chip photonic applications is a scaled emitter. Whispering gallery mode cavities based on III-Vs on Si allow for small device footprints and lasing with low thresholds. However, multimodal emission and wavelength stability over a wider range of temperature can be challenging. Here, we explore the use of Au nanorod antennae on InP whispering gallery mode lasers on Si for single-mode emission. We show that by proper choice of the antenna size and positioning, we can suppress the side modes of a cavity and achieve single-mode emission over a wide excitation range. We establish emission trends by varying the size of the antenna and show that the far-field radiation pattern differs significantly for devices with and without antenna. Furthermore, the antenna-induced single-mode emission is dominant from room temperature (300 K) down to 200 K, whereas the cavity without an antenna is multimodal and its dominant emission wavelength is highly temperature-dependent.
Identifiants
pubmed: 35480488
doi: 10.1021/acsphotonics.1c01677
pmc: PMC9026291
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1218-1225Informations de copyright
© 2022 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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