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Information × Registration Number 0215U001097, 0110U004585 , R & D reports Title Investigation of optical and nonlinear optical properties of nanostructures based on noble metals and semiconductors: development of new high sensitive techniques for studying and testing the nanostructures. popup.stage_title Head Brodyn Mykhailo Semenovych, Registration Date 17-01-2015 Organization Institute of physics NASU popup.description2 The aim of this stage is the creation of highly efficient and fast nonlinear optical material based on gold island films. The task to get the value of the third order nonlinear susceptibility ?(3) ~10-5 esu at wavelength 532 nm, which is two orders of magnitude higher than in a composite material based on dielectric matrix (SiO2 or Al2O3) with gold nanoparticles. As part of the stage the samples were created with ordered and disordered island gold films that showed extremely high values of the nonlinear susceptibility of third order. It was achieved maximum value ?(3) = 8?10-5 esu that obtained for island disordered films. The exciting laser radiation at a wavelength of 532 nm spectrally enters to the band of plasmon resonance of this sample and therefore gives high absorption. For ordered films with substantially non-spherical shape obtained maximum value ?(3) = 3?10-5 esu which is also very high value. But this band of plasmon resonance spectrally shifted away from the wavelength of the exciting radiation and provides lower absorption losses. Thus, such material may be perspective for use in modern optoelectronics to manage short light pulses. Product Description popup.authors Борщ Анатолій Олександрович Бродин Михайло Семенович Воловик Микола Володимирович Воловик Микола Володимирович Ляховецький Володимир Романович Руденко Валентин Іванович Стьопкін Вівктор Іванович Томчук Петро Михайлович popup.nrat_date 2020-04-02 Close