Тип публикации: статья из журнала
Год издания: 2017
Идентификатор DOI: 10.1117/1.JNP.11.032502
Ключевые слова: Ambient Temperature, detonation nanodiamonds, engine oil, optical limiting, Optical limiting threshold, suspension
Аннотация: The optical limiting (OL) of detonation nanodiamond (DND) suspensions in engine oil was studied at a temperature range of 20°C to 100°C. Oil suspensions were prepared on the basis of the DNDs with an average nanoparticle cluster size in hydrosols (Daver) of 50 and 110 nm. Raman spectroscopy was used to characterize the samples. The OL investigation was carried out by the z-scan technique. The fundamental (1064 nm) and second (532 nm) harmonic radiations of YAG:Nd3 laser with passive Q-switching as an excitation source were used. The OL thresholds for both suspensions at 532 and 1064 nm were determined. It is shown that a decrease in the average nanoparticle cluster size as well as an increase of the wavelength of the incident radiation leads to the OL threshold increase. It is established that the OL performance is not influenced by increasing the temperature from 20°C to 100°C. The results obtained show the possibility of using the DNDs suspensions in engine oil as an optical limiter in a wide temperature range.
Журнал: Journal of Nanophotonics
Выпуск журнала: Т. 11, № 3
Номера страниц: 113258162
ISSN журнала: 19342608
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