Synthesis and optical properties of silver nanoparticles in ORMOCER

Abstract

Experimental results on synthesis of metal nanoparticles in ORMOCER by ion implantation are presented. Silver ions were implanted into organic/inorganic matrix at an accelerating energy of 30 keV and doses in the range of 0.25 · 10 17 to 0.75 · 10 17 ion/cm 2 . The silver ions form metal nanoparticles, which demonstrate surface plasmon absorption at the wavelength of 425-580 nm. The nonlinear absorption of new composite materials is measured by Z-scan technique using 150 fs laser pulses at 780 nm wavelength. ORMOCER matrix shows two-photon nonlinear absorption, whereas ORMOCER with silver nanoparticles demonstrates saturated absorption. Some optical applications of these composite materials are discussed.Nonlinear optics plays a key role in the implementation and development of many photonics technologies for high-speed optical signal processing. The development of novel nonlinear optical materials with ultrafast time response, high resistance to bulk and surface laser damages, with two-photon and/or saturated absorption, and of course, large optical refractive nonlinearities, is crucial for those technologies. In

Saturable absorption of silver nanoparticles in glass for femtosecond laser pulses at 400 nm

“…This nonlinear optical (i.e. intensity dependent) behavior has been observed for different kinds of metal NPs such as Ag [2,[7][8][9][10][11][12], gold [13][14][15][16] and copper [17,18] around their SPR. The SA of gold NPs and to some extent also copper NPs has been examined extensively at 532 nm [14,18] (the second harmonic of Nd:YAG laser) since their SPR lies in this spectral region.…”

Enhanced nonlinear optical response of metal nanocomposite based photonic crystals

“…The nonlinear optical properties of the metal nanocomposite film were characterized using open aperture Z-scan technique. [7][8][9] The Z-scan set up consists of Ti:sapphire laser source with a 120 fs pulse width and a repetition rate of 1 KHz. The excitation wavelength used in this experiment was 840 nm which is twice the plasmon resonance frequency of the silver NPs ($420 nm) so as to induce TPA.…”

Polymers for Regenerative Medicine Structures Made via Multiphoton 3D Lithography

“…Indeed, by controlling the shape and size of such nanoobjects, their absorption and emission characteristics can be changed from UV to IR wavelengths [156,157]. In the 3DLL case, they can be introduced into polymer either after printing [158] or just by mixing them into prepolymer before printing [112,159,160]. The second option is extremely attractive due to its simplicity and is always used if possible.…”