Wang, JT; Lei, D; Tang, M; Panoiu, NC; (2024) Multibeam Lasing Action from Bound States in the Continuum of Photonic Crystal Slab Waveguides. In: Proceedings of the Photonics & Electromagnetics Research Symposium (PIERS) 2024. (pp. pp. 1-6). Institute of Electrical and Electronics Engineers (IEEE)

Preview

Text PIERSFullPaper.pdf - Accepted Version Download (1MB) | Preview

Abstract

The ability to create optical resonances with high quality-(Q) factors makes photonic crystals (PhCs) an ideal platform for enhanced light-matter interaction, and facilitates the design of efficient active photonic devices at the nanoscale. Here, we utilize the physics of optical bound states in the continuum (BICs) to achieve high-Q resonances in two-dimensional PhC slab waveguides and propose a theoretical design for multibeam lasing action. The proposed PhC slab working at 1300nm supports a quasi-BIC at a wavelength above the diffraction limit. Utilizing Fourier analysis, the optical far-field emitted by the quasi-BIC is investigated and the results show that the zeroth and first diffraction orders are characterized by a topological charge equal to 1. Due to this topological nature of the quasi-BIC, multiple vortex beams are generated into all available diffraction channels. We believe that our multibeam, quantum-dot laser device based on PhC slab waveguides possessing BICs paves a novel way to generate and control laser emission, thus advancing both fundamental research and practical applications in photonics.

Download activity - last month

Export as XMLJSONCSV

Download activity - last 12 months

Export as JSONXMLCSV

Downloads by country - last 12 months

Export as JSONXMLCSV

Archive Staff Only

View Item