Absorption and Fluorescence Spectra of Rhodamine 6G for Photon Simulations

Fluorescence and absorption spectra of the laser dye Rhodamine 6G, collected by Robert A. Nyman of Imperial College London. The absorption data were taken at various concentrations using a single-monochromator spectrophotometer. This data was used in a study published at https://doi.org/10.1103/PhysRevA.93.013829 and is suitable for simulations of photon thermalisation, condensation, and lasing.

Use Cases

• Simulating photon thermalisation based on the provided absorption and fluorescence cross-sections.
• Modeling photon condensation and lasing dynamics using the spectral data.
• Studying the effects of dye concentration on absorption spectra, as data was taken at various concentrations.
• Correcting for systematic biases in spectral measurements, such as underestimated cross-section at high absorption or weak dimerisation at high concentration.

Strengths

• Includes an accompanying Python script for stitching data together based on concentration and detector dynamic range.
• Description explicitly notes specific systematic biases (underestimated cross-section at high absorption, weak dimerisation at high concentration), aiding in data correction.
• Data is directly linked to a published physics research paper (Phys. Rev. A 93, 013829).

Limitations

• Fluorescence data contains undesirable spikes due to room lights, requiring cleaning.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

Robert A. Nyman, Imperial College London

Collection Method

Measured using a single-monochromator spectrophotometer at various concentrations.