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Super-resolution Fluorescence Microscopy

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Updated: Jun 16, 2026

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

Nanosecond high radiance standard source.

H Krompholz, H Fischer

|February 4, 2010

Summary

This summary is machine-generated.

High-intensity spark channels generated by Nanolite sources exhibit high spectral radiance and luminance. Pulse charging significantly enhances these optical properties compared to slow charging, reaching temperatures over 60,000 K.

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Last Updated: Jun 16, 2026

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

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Published on: January 11, 2018

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Published on: August 22, 2019

Area of Science:

Physics
Optical Engineering
Plasma Physics

Background:

Nanolite sources produce high-density spark channels with significant optical emissions.
Understanding these emissions is crucial for applications requiring intense light sources.

Purpose of the Study:

To systematically study spectral radiances and luminances of Nanolite spark channels.
To compare optical properties under different charging conditions and gas environments.
To determine equivalent blackbody temperatures and spectral radiant intensity.

Main Methods:

Comparison of Nanolite spark channel emissions with a calibrated dc-carbon arc.
Systematic measurement of spectral radiances R(lambda) and luminances B.
Varying gas pressures (air, argon, helium) and charging methods (slow, pulse).

Main Results:

Maximum spectral radiance R(lambda) reached over 70 W cm(-2) A(-1) sr(-1) in air with pulse charging.
Equivalent blackbody temperatures exceeded 62,000 K in air (pulse charged).
Reproducible results with an absolute error estimated below +/-20%.

Conclusions:

Nanolite spark channels are powerful, tunable light sources.
Pulse charging dramatically enhances spectral radiance and temperature.
The study provides quantitative data for optimizing Nanolite source applications.