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Updated: May 2, 2026

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Beyond Spectral Resolution in Nanophotonic Sensing: Picometer-Level Precision with Multispectral Readout.

M S Cano-Velázquez¹, S Buntinx¹, A L Hendriks¹

¹Department of Applied Physics and Science Education, and Eindhoven Hendrik Casimir Institute, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands.

|July 21, 2025

Summary

This summary is machine-generated.

This study introduces a novel approach to nanophotonic sensing, demonstrating picometer-level precision with low-resolution detectors. This innovation significantly reduces costs and complexity for high-performance optical sensing systems.

Keywords:

biosensing multispectral readout nanophotonic sensing refractive index sensing temperature sensing

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Area of Science:

Optics and Photonics
Sensor Technology
Biotechnology

Background:

Nanophotonic sensors provide precise, remote, and interference-immune measurements.
Current adoption is limited by complex and expensive high-resolution readout instrumentation.

Purpose of the Study:

To challenge the necessity of high spectral resolution in optical sensing.
To propose a cost-effective, high-precision readout method for nanophotonic sensors.

Main Methods:

Co-optimizing sensor and readout line widths.
Utilizing low-resolution multispectral detector arrays and incoherent light sources.
Validating the approach in temperature, refractive index, and biosensing applications.

Main Results:

Achieved picometer-level precision, surpassing high-resolution spectrometers.
Demonstrated superior performance in diverse sensing applications (temperature, refractive index, biosensing).
Validated the effectiveness of low-resolution readout with co-optimized components.

Conclusions:

High spectral resolution is not essential for high-performance nanophotonic sensing.
The proposed method enables cost-effective and compact optical sensing systems.
This paradigm shift facilitates broader adoption of nanophotonic sensors.