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Related Experiment Video

Updated: Jun 16, 2026

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Sub-nm resolution cavity enhanced microspectrometer.

Bernardo B C Kyotoku¹, Long Chen, Michal Lipson

¹School of Electrical and Computer Engineering, Cornell University, Ithaca, N.Y. 14850, USA.

|February 23, 2010

Summary

This summary is machine-generated.

A new on-chip spectrometer combines micro-ring resonators and diffraction gratings for ultra-compact, high-resolution spectroscopy. This silicon-on-insulator device achieves 100 channels with minimal crosstalk, paving the way for low-cost spectroscopy applications.

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Last Updated: Jun 16, 2026

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Area of Science:

Photonics and Optical Engineering
Integrated Optics
Spectroscopy

Background:

Traditional spectrometers are often bulky and expensive.
The demand for miniaturized and cost-effective spectroscopic solutions is growing across various scientific fields.

Purpose of the Study:

To propose and experimentally demonstrate a novel on-chip spectrometer.
To integrate micro-ring resonator and planar diffraction grating functionalities onto a single chip.
To evaluate the performance of this ultra-compact spectroscopic device.

Main Methods:

Design and fabrication of an on-chip spectrometer on a silicon-on-insulator platform.
Integration of micro-ring resonator and planar diffraction grating components.
Experimental characterization of channel count, channel spacing, and channel crosstalk.

Main Results:

Successful demonstration of a functional on-chip spectrometer.
Achieved 100 channels with a spectral resolution of 0.1 nm.
Exhibited channel crosstalk below -10 dB.
The device footprint is less than 2 mm².

Conclusions:

The proposed on-chip spectrometer architecture is feasible and performs effectively.
This integrated device offers a pathway towards realizing low-cost, high-resolution, and ultra-compact spectroscopy.
Potential applications in diverse fields requiring portable and efficient spectroscopic analysis.