AI Article Synopsis
- This text discusses the development of lasers that utilize Bloch surface waves (BSWs) for potential applications in on-chip nanophotonics and optical devices.
- The researchers created a laser based on a guided BSW mode using a specially designed gain-medium guiding structure, achieving long-range propagation and high-quality laser output.
- The BSW lasers demonstrated a low lasing threshold of 6.7 μJ/mm and a narrow linewidth of 0.019 nm, indicating their sensitivity to environmental changes, which could be useful for ultra-sensitive devices.
Article Abstract
Controlling the propagation and emission of light via Bloch surface waves (BSWs) has held promise in the field of on-chip nanophotonics. BSW-based optical devices are being widely investigated to develop on-chip integration systems. However, a coherent light source that is based on the stimulated emission of a BSW mode has yet to be developed. Here, we demonstrate lasers based on a guided BSW mode sustained by a gain-medium guiding structure microfabricated on the top of a BSW platform. A long-range propagation length of the BSW mode and a high-quality lasing emission of the BSW mode are achieved. The BSW lasers possess a lasing threshold of 6.7 μJ/mm and a very narrow linewidth reaching a full width at half maximum as small as 0.019 nm. Moreover, the proposed lasing scheme exhibits high sensitivity to environmental changes suggesting the applicability of the proposed BSW lasers in ultra-sensitive devices.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10576087 | PMC |
| http://dx.doi.org/10.1038/s41467-023-41471-8 | DOI Listing |
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