Author(s): Cao, F (Cao, Fang); Zhao, XP (Zhao, Xupeng); Lv, XQ (Lv, Xiaoqing); Hu, LC (Hu, Liangchen); Jiang, WH (Jiang, Wenhui); Yang, F (Yang, Feng); Chi, L (Chi, Li); Chang, PY (Chang, Pengying); Xu, C (Xu, Chen); Xie, YY (Xie, Yiyang)

Source: NANOMATERIALS Volume: 12 Issue: 15 Article Number: 2607 DOI: 10.3390/nano12152607 Published: AUG 2022

Abstract: The work introduces a localized surface plasmon resonance (LSPR) sensor chip integrated with vertical-cavity surface-emitting lasers (VCSELs). Using VCSEL as the light source, the hexagonal gold nanoparticle array was integrated with anodic aluminum oxide (AAO) as the mask on the light-emitting end face. The sensitivity sensing test of the refractive index solution was realized, combined with microfluidic technology. At the same time, the finite-difference time- domain (FDTD) algorithm was applied to model and simulate the gold nanostructures. The experimental results showed that the output power of the sensor was related to the refractive index of the sucrose solution. The maximum sensitivity of the sensor was 1.65 x 10(6) nW/RIU, which gives it great application potential in the field of biomolecular detection.

Accession Number: WOS:000839955400001

PubMed ID: 35957038

eISSN: 2079-4991

Full Text: https://www.mdpi.com/2079-4991/12/15/2607