Unidirectional and collective emission of integrated quantum emitters
- URL: http://arxiv.org/abs/2509.12585v1
- Date: Tue, 16 Sep 2025 02:23:27 GMT
- Title: Unidirectional and collective emission of integrated quantum emitters
- Authors: Jun Ren, Meng-Jia Chu, Z. D. Wang,
- Abstract summary: We develop a metric -- iso-frequency contour straightness and implement Fourier-transform analysis of radiation patterns to evaluate directional quality of emission in photonic crystal.<n>We demonstrate single-emitter radiation efficiency enhancement while maintaining low-loss unidirectional propagation.<n>This synergy of photonic band engineering and collective emitter coupling control is able to realize unprecedented scalable coherence control in quantum emitter arrays.
- Score: 0.9328991021103294
- License: http://creativecommons.org/licenses/by-nc-nd/4.0/
- Abstract: Unidirectional emission holds significant potential for advancing integrated photonics and quantum information technologies. However, the inherent randomness of spontaneous emission fundamentally makes its efficient realization rather challenging. To address this, here we develop a quantitative metric -- iso-frequency contour straightness and implement Fourier-transform analysis of radiation patterns to systematically evaluate directional quality of emission in photonic crystal (PhC) slabs. Through structural optimization, we demonstrate single-emitter radiation efficiency enhancement while maintaining low-loss unidirectional propagation. Furthermore, by strategically positioning multi-emitter arrays within PhC platforms, we simultaneously achieve scalable intensity amplification and superradiant emission via cooperative effects. This synergy of photonic band engineering and collective emitter coupling is able to realize unprecedented spatiotemporal coherence control in quantum emitter arrays.
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