ArticleLight, science & applications2025
Surpassing 99% detection efficiency by cascading two superconducting nanowires on one waveguide with self-calibration.
Article in Light, science & applications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The trial behind it
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Who cites it
2 citing papers in PubMed.
- Design of a Fano-resonance-enhanced dielectric grating for ultralow-filling-factor superconducting nanowire single-photon detector.Scientific reports · 2026Article
- Experimental coherent one-way quantum key distribution with simplicity and practical security.Science advances · 2026Article
Corrections and comments
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Authors and funding
21 authors.
Funding
Abstract
Integrated quantum photonics (IQP) allows for on-chip generation, manipulation and detection of quantum states of light, fostering advancements in quantum communication, quantum computing, and quantum information technologies. Single-photon detector is a key device in IQP that allows for efficient readout of quantum information through the detection of single-photon statistics and measurement of photonic quantum states. The efficacy of quantum information retrieval hinges on the ability to simultaneously detect every single photon with high efficiency, a relationship that grows exponentially with the number of photons (n). Even a slight decrease in single photon detection efficiency can lead to a significant reduction in probability as n grows larger. Here, we introduce a superconductor-semiconductor heterogeneous integration technology that allows for the integration of transversal superconducting nanowires single-photon detectors that eliminate corner loss on various optical waveguides with exceptional efficiency and versatility. Two cascaded nanowires have been integrated on one silicon waveguide, which not only boosts the detection efficiency to 99.73% at a wavelength of 1550 nm but also provides an on-chip calibration setup, allowing such high efficiency to be measured despite the large loss from fiber-to-waveguide coupling and uncertainties from absolute power calibrations. These advancements represent a substantial improvement compared to previous records, approaching the theoretical limit achievable on silicon waveguide, and demonstrate the versatility of heterogeneous integration technology. This breakthrough in ultra-high detection efficiency establishes a new baseline for assessing quantum measurement capabilities on scalable IQP platforms.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.