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王树峰
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王树峰
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论文成果
Supersymmetry Laser Arrays with High‐Order Exceptional Point
发布时间:2024-07-29点击次数:
影响因子:
0.0
DOI码:
10.1002/adpr.202300143
发表刊物:
Advanced Photonics Research
摘要:
Supersymmetry (SUSY) laser array with superpartner structure can suppress excess modes to achieve high-intensity and high-coherent radiation. Compared with complex superpartner, using parity time (PT) symmetry broken to manipulate SUSY laser arrays is a more flexible approach. Herein, based on ultrathin perovskite single crystal, a SUSY laser array is constructed without superpartner, but with auxiliary gain–loss structure. PT symmetry broken with high-order exceptional point (EP) is realized in the visible spectral range. It intrinsically avoids superpartner field mismatch and improves side mode suppression ratio 8.8–12 dB for single-mode lasing. Furthermore, variations in EP-order enable the transition from single-mode to dual-mode or tri-mode radiation and retain amplified radiation characteristics. In addition, these SUSY laser arrays with the high-order EP have the potential to be small-volume optical sensor devices. The new design combining SUSY and PT symmetry broken presents its potential in micro-nanophotonic devices with the benefit of small size, flexibility in spectral control, expandability, simplicity, and multifunctionality feature.
论文类型:
期刊论文
卷号:
4
期号:
9
页面范围:
2300143
是否译文:
否
发表时间:
2023-07-25
收录刊物:
SCI