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Related Experiment Video

Updated: Jun 21, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Single-Particle Photothermal Microscopy Using On-Chip Silicon Nitride Microring Resonators.

Yulia Podorova¹, Cecilia H Vollbrecht¹, Samantha J Evans¹

¹Department of Chemistry, University of Wisconsin-Madison, 1101 University Ave, Madison, Wisconsin 53706, United States.

The Journal of Physical Chemistry. A

|December 24, 2025

Summary

This summary is machine-generated.

Silicon nitride microring resonators (MRRs) enable sensitive single-particle photothermal microscopy. This study calibrated the technique using carbon nanotubes, validating its potential for nanoscale thermal detection.

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Last Updated: Jun 21, 2026

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

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Published on: April 4, 2017

Fabrication and Testing of Photonic Thermometers

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Published on: October 24, 2018

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators

Published on: August 8, 2025

Area of Science:

Photonics
Nanotechnology
Microscopy

Background:

Optical microresonators offer high sensitivity for detecting thermal changes.
On-chip integrated devices are crucial for advanced sensing applications.

Purpose of the Study:

Investigate silicon nitride microring resonators (MRRs) for single-particle photothermal microscopy.
Calibrate the technique and assess the MRR geometry for microscopy.

Main Methods:

Utilized on-chip integrated silicon nitride microring resonators (MRRs).
Employed single nonphotoluminescent carbon nanotubes for calibration.
Performed finite-element simulations to analyze thermal gradients.

Main Results:

Determined absorption cross-section per atom for carbon nanotubes, matching literature values.
Successfully demonstrated single-particle photothermal microscopy using MRRs.
Quantified thermal gradients relevant to the planar MRR geometry.

Conclusions:

The study validates MRRs as a viable platform for sensitive single-particle photothermal microscopy.
Finite-element simulations provide crucial insights into thermal dynamics.
The planar MRR geometry presents specific advantages and limitations for this application.