III-Nitride-on-silicon microdisk lasers from the blue to the deep ultra-violet - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2016

III-Nitride-on-silicon microdisk lasers from the blue to the deep ultra-violet

Abstract

We present a series of microdisk lasers realized within the same GaN-on-Si photonic platform scheme, and operating at room temperature under pulsed optical pumping over a broad spectral range extending over λ = 275 nm–470 nm. The III-nitride microdisks embed either binary GaN/AlN multiple quantum wells (MQWs) for UV operation, or ternary InGaN/GaN MQWs for violet and blue operation. This demonstrates the versatility of this nitride-on-silicon platform, and the realization on this platform of efficient active layers for lasing action over a 200 nm broad UV to visible spectral range. We probe the lasing threshold carrier density over the whole spectral range and found that it is similar whatever the emission wavelength for these Q > 1000 microdisk resonators with a constant material quality until quantum confined Stark effect takes over. The threshold is also found independent of microdisk diameters from 3 to 12 μm, with a β factor intermediate between the one of vertical cavity lasers and the one of small modal volume “thresholdless” lasers.
Fichier principal
Vignette du fichier
III-Nitride-on-silicon microdisk lasers_APL16_UVbluemicrodisklasers.pdf (1.43 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive

Dates and versions

hal-01469387 , version 1 (03-06-2021)

Identifiers

Cite

Julien Selles, V. Crepel, I. Roland, M. El Kurdi, X. Checoury, et al.. III-Nitride-on-silicon microdisk lasers from the blue to the deep ultra-violet. Applied Physics Letters, 2016, 109 (23), pp.231101. ⟨10.1063/1.4971357⟩. ⟨hal-01469387⟩
145 View
98 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More