Issue 9, 2022

Third-order optical nonlinearity in nucleobase solid thin solid film and its application for ultrashort light pulse generation

Abstract

Adenine, Guanine, Cytosine, and Thymine are the fundamental constituents of DNA and RNA, the building blocks of living organisms. We revealed these nucleobases’ nonlinear optical properties in solid thin films and successfully applied them for ultrashort laser pulse generation. Nucleobase thin solid films were fabricated by using the organic molecular beam deposition process, and Z-scan measurements confirmed their high third-order optical nonlinearity. Nucleobase thin solid films were further deposited on a side-polished silica optical fiber, which served as an all-fiber saturable absorber in a ring laser cavity. We generated stable transform-limited femtosecond soliton pulse trains in the anomalous dispersion regime using an Erbium-doped fiber as a gain medium. These new findings of optical nonlinearities in nucleobase thin solid film can open a new avenue of photo-metrology, taking advantage of integration capability and bio-compatibility.

Graphical abstract: Third-order optical nonlinearity in nucleobase solid thin solid film and its application for ultrashort light pulse generation

Article information

Article type
Paper
Submitted
08 Nov 2021
Accepted
28 Jan 2022
First published
28 Jan 2022

J. Mater. Chem. C, 2022,10, 3517-3522

Third-order optical nonlinearity in nucleobase solid thin solid film and its application for ultrashort light pulse generation

R. Khazaeinezhad, S. H. Kassani, M. Ghasemi, Y. Cho, S. Il Im, D. Il Yeom, F. Rotermund, J. G. Grote, E. Deleporte, I. Ledoux-Rak and K. Oh, J. Mater. Chem. C, 2022, 10, 3517 DOI: 10.1039/D1TC05375B

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