Continuous-Wave Pumped Monolayer WS₂ Lasing for Photonic Barcoding.

ABSTRACT: Micro/nano photonic barcoding has emerged as a promising technology for information security and anti-counterfeiting applications owing to its high security and robust tamper resistance. However, the practical application of conventional micro/nano photonic barcodes is constrained by limitations in encoding capacity and identification verification (e.g., broad emission bandwidth and the expense of pulsed lasers). Herein, we propose high-capacity photonic barcode labels by leveraging continuous-wave (CW) pumped monolayer tungsten disulfide (WS₂) lasing. Large-area, high-quality monolayer WS₂ films were grown via a vapor deposition method and coupled with external cavities to construct optically pumped microlasers, thus achieving an excellent CW-pumped lasing with a nar

SUBMITTER: Cheng H 

PROVIDER: S-EPMC11013185 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature