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Photoluminescence: Applications

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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Updated: Nov 6, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Single organic molecules for photonic quantum technologies.

C Toninelli^1,2, I Gerhardt³, A S Clark⁴

¹CNR-INO, Sesto Fiorentino, Italy. toninelli@lens.unifi.it.

Nature Materials

|May 11, 2021

Summary

This summary is machine-generated.

Single molecules, when cooled, act as efficient quantum emitters. Their integration with photonic structures enables advanced quantum technologies for sensing and computation.

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Area of Science:

Quantum physics
Materials science
Nanotechnology

Background:

Single molecule isolation in solid-state enables fundamental scientific experiments.
Organic materials offer diverse emission wavelengths and matrices for chromophores.
Coupling molecules to photonic structures enhances light-matter interaction.

Purpose of the Study:

To explore the potential of single molecules as quantum emitters.
To highlight their applications in quantum science and technologies.
To demonstrate their use in optical read-out and sensing.

Main Methods:

Isolation of single molecules in solid matrices.
Cooling molecules to liquid helium temperatures.
Coupling molecules to photonic structures.

Main Results:

Molecules exhibit narrow transition lines, limited by excited-state lifetime.
Organic synthesis provides cost-effective, versatile chromophores.
Molecules function as single-photon sources and nonlinear elements with high coherence and scalability.

Conclusions:

Single-molecule quantum emitters show significant promise for quantum science and technology development.
They offer competitive performance for integrated platforms.
Potential for single-quanta resolution in sensing applications.