UV laser cutting of organic nanofibers

Frank Balzer; Juergen Ihlemann; Adam C. Simonsen; Horst-Guenter Rubahn

doi:10.1117/12.589682

22 January 2005 UV laser cutting of organic nanofibers

Frank Balzer, Juergen Ihlemann, Adam C. Simonsen, Horst-Guenter Rubahn

Proceedings Volume 5720, Micromachining Technology for Micro-Optics and Nano-Optics III; (2005) https://doi.org/10.1117/12.589682
Event: MOEMS-MEMS Micro and Nanofabrication, 2005, San Jose, California, United States

Abstract

Nanofibers made from organic molecules such as para-hexaphenyl allow guiding of electromagnetic waves. Since they possess nanometric widths and heights but macroscopic lengths they represent the smallest possible optical waveguides. Recently, gain enhancement has been observed, pointing to possible applications as nanolasers. Owing to their self assembly growth mode on mica substrates the nanofibers posses well-defined morphology. In order to implement these aggregates into new optical devices or to enhance feedback and thus build up a resonator structure a defined cutting of the end faces is necessary. This article presents results from the first experimental studies in this direction. Irradiation with UV laser pulses of 193 nm at a fluence of 100 mJ/cm² removes the fibers completely without damaging the substrate. In addition, the fibers can be cut in any orientation relative to their long axes. The quality of the ablation process in terms of readsorbed debris and steepness of cutting is investigated by atomic force and scanning electron as well as fluorescence microscopy.

Citation Download Citation

Frank Balzer, Juergen Ihlemann, Adam C. Simonsen, and Horst-Guenter Rubahn "UV laser cutting of organic nanofibers", Proc. SPIE 5720, Micromachining Technology for Micro-Optics and Nano-Optics III, (22 January 2005); https://doi.org/10.1117/12.589682

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