Ke Yin
As seen in:
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arXiv,
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MDPI,
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Royal Society of Chemistry,
Physical Review B
and
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Overcoming the thermo-refractive noise limit for a full-spectrum Hertz-linewidth microcomb
Abstract Chip-scale microcombs combining high repetition rates and Hertz-level linewidths are critical for precision measurements and parallel coherent communications. Self-injection locking (SIL) has been widely used but faces a fundamental limitation: the microresonator must simultaneously generate the comb and suppress noise, creating a coherence ceiling set by thermo-refractive noise (TRN). This imposes a fundamental trade-off between repetition rate and linewidth.
Critical point–based wireless sensors enabling tiny perturbation detection
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract High quality factor and sensitivity are critical to wireless sensors targeting small perturbation detection. Although introducing parity-time symmetric dynamics promises enhanced performance, the symmetric scheme often yields limited sensing behaviors.
Misbehaviour dominates GHG emissions from food loss and waste
Abstract Food loss and waste (FLW) generates ~19% of global anthropogenic greenhouse gas emissions, yet its determinants and mitigation potential remain insufficiently understood. To address this, we develop a mechanistic framework that disaggregates FLW emissions into those driven by techno-economic constraints, surplus production and mis-consumption, with the latter two constituting misbehaviour-driven emissions.
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