Optical gain in DNA-DCM for lasing in photonic materials

TL;DR

This paper investigates the optical gain properties of DNA doped with DCM dye, demonstrating high gain coefficients suitable for integration into photonic structures for lasing applications.

Contribution

It provides a detailed analysis of the gain length and optical gain coefficient in DNA-DCM composites, highlighting their thermal stability and low quenching for photonic device integration.

Findings

Optical gain coefficient exceeds 300 cm^-1 in DNA-DCM composites.

DNA-DCM exhibits superior thermal stability and low quenching.

Suitable for integration into photonic nano-structures for lasing.

Abstract

We present a detailed study of the gain length in an active medium obtained by doping of DNA strands with DCM dye molecules. The superior thermal stability of the composite and its low quenching, permits to obtain optical gain coefficient larger than 300 cm^-1. We also show that such an active material is excellent for integration into photonic nano-structures, to achieve, for example, efficient random lasing emission, and fluorescent photonic crystals.