ArticleLight, science & applications2023
Breaking the resolution-bandwidth limit of chip-scale spectrometry by harnessing a dispersion-engineered photonic molecule.
Article in Light, science & applications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 75 citations in OpenAlex.
- Geometrical-optics resonator photonics.Nature communications · 2026Article
- Slow modulation unlocks mode-locking via parametric amplification in photonic molecule.Nature communications · 2026Article
- Hyper-spectral photonic integrated circuits based on recursive inverse design.Nature communications · 2026Article
- An efficient mid-infrared computational spectrometer based on synergistic microcavity-coupled photonic crystal waveguides.Nature communications · 2026Article
- Resonant microtaper leaky-mode computational spectropolarimetry with tens of femtometers spectral resolution and full Stokes measurement.Nature communications · 2026Article
- Achieving sub-pm wavelength regression via minimum-phase in a single-stream photonic IC.Nature communications · 2026Article
- Silicon Photonic On-Chip Spectrometer Based on Cascaded Mach-Zehnder Interferometer.Sensors (Basel, Switzerland) · 2026Article
- Miniaturized chaos-assisted Spectrometer.Light, science & applications · 2025Article
- Single-Pixel Infrared Miniaturized Spectrometer Enabled by Ultra-Broadband Reconfigurable Photodetection.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Scalable miniature on-chip Fourier transform spectrometer for Raman spectroscopy.Light, science & applications · 2025Article
- Compact modulators on silicon nitride waveguide platform via micro-transfer printing of thin-film lithium niobate.Scientific reports · 2025Article
- Miniaturized disordered photonic molecule spectrometer.Light, science & applications · 2025Article
- Scalable on-chip diffractive speckle spectrometer with high spectral channel density.Light, science & applications · 2025Article
- Chip-scale sensor for spectroscopic metrology.Nature communications · 2024Article
- Denoising-autoencoder-facilitated MEMS computational spectrometer with enhanced resolution on a silicon photonic chip.Nature communications · 2024Article
- Direct phase measurement of waveguides with a next generation optical vector spectrum analyzer.Light, science & applications · 2024Article
- i-PHAOS: An Overview with an Open-Source Collaborative Database on Miniaturized Integrated Spectrometers.Sensors (Basel, Switzerland) · 2024Review
- Benchmarking Reconstructive Spectrometer with Multiresonant Cavities.ACS photonics · 2024Article
- Unique Hyperspectral Response Design Enabled by Periodic Surface Textures in Photodiodes.ACS photonics · 2024Article
- A wideband, high-resolution vector spectrum analyzer for integrated photonics.Light, science & applications · 2024Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The chip-scale integration of optical spectrometers may offer new opportunities for in situ bio-chemical analysis, remote sensing, and intelligent health care. The miniaturization of integrated spectrometers faces the challenge of an inherent trade-off between spectral resolutions and working bandwidths. Typically, a high resolution requires long optical paths, which in turn reduces the free-spectral range (FSR). In this paper, we propose and demonstrate a ground-breaking spectrometer design beyond the resolution-bandwidth limit. We tailor the dispersion of mode splitting in a photonic molecule to identify the spectral information at different FSRs. When tuning over a single FSR, each wavelength channel is encoded with a unique scanning trace, which enables the decorrelation over the whole bandwidth spanning multiple FSRs. Fourier analysis reveals that each left singular vector of the transmission matrix is mapped to a unique frequency component of the recorded output signal with a high sideband suppression ratio. Thus, unknown input spectra can be retrieved by solving a linear inverse problem with iterative optimizations. Experimental results demonstrate that this approach can resolve any arbitrary spectra with discrete, continuous, or hybrid features. An ultrahigh resolution of <40 pm is achieved throughout an ultrabroad bandwidth of >100 nm far exceeding the narrow FSR. An ultralarge wavelength-channel capacity of 2501 is supported by a single spatial channel within an ultrasmall footprint (≈60 × 60 μm
Identifiers
What OpenQuestion holds
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.