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ZnO nanorods for efficient third harmonic UV generation

Das, Susanta Kumar and Güell, Frank and Gray, Ciarán and Das, Prasanta Kumar and Grunwald, Ruediger and McGlynn, Enda (2014) ZnO nanorods for efficient third harmonic UV generation. Optical Materials Express, 4 (4). pp. 701-709. ISSN 2159-3930

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Abstract

ZnO nanorods grown by both high temperature vapour phase transport and low temperature chemical bath deposition are very promising sources for UV third harmonic generation. Material grown by both methods show comparable efficiencies, in both cases an order of magnitude higher than surface third harmonic generation at the quartz-air interface of a bare quartz substrate. This result is in stark contrast to the linear optical properties of ZnO nanorods grown by these two methods, which show vastly different PL efficiencies. The third harmonic generated signal is analysed using intensity dependent measurements and interferometric frequency resolved optical gating, allowing extraction of the laser pulse parameters. The comparable levels of efficiency of ZnO grown by these very different methods as sources for third harmonic UV generation provides a broad suite of possible growth methods to suit various substrates, coverage and scalability requirements. Potential application areas range from interferometric frequency resolved optical gating characterization of few cycle fs pulses to single cell UV irradiation for biophysical studies.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:Nonlinear optics; ultrafast lasers; fs
Subjects:Physical Sciences > Spectrum analysis
Physical Sciences > Nanotechnology
Physical Sciences > Lasers
Physical Sciences > Semiconductors
DCU Faculties and Centres:Research Initiatives and Centres > National Centre for Plasma Science and Technology (NCPST)
DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:Optical Society of America
Official URL:http://dx.doi.org/10.1364/OME.4.000701
Copyright Information:© 2014 OSA
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:19883
Deposited On:27 Mar 2014 11:23 by Enda McGlynn. Last Modified 20 Jan 2017 11:23

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