Title :
Optical properties of silver nanocrystal synthesized by a new srategies: Experiments supported by DDA calculation
Author :
Zhi Yang ; Minqiang Wang ; Mayue Shi ; Yanhua Shi ; Xi Yao
Author_Institution :
Key Lab. of the Minist. of Educ. & Int. Center for Dielectr. Res., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
In order to understand surface plasmon resonance of metal nanocrystals, we have produced sphere silver nanocrystals (AgNCs) by liquid-solid-solution (LSS) method. The synthesized AgNCs have high extinction coefficient and narrow size distribution. This provides a convenience for studying optical surface plasmon resonance (SPR) properties of AgNCs. Based on these excellent properties, we calculate the extinction spectrum of AgNCs, electrical field distribution near the AgNCs by discrete dipole approximation (DDA) method and investigate the effect of size, incident wavelength and material on electrical field distribution. These results could be helpful for us to simulate optical properties of real metal NCs more accurately, study optical properties of AgNCs periodic structure and engineer AgNCs with new plasmonic properties.
Keywords :
extinction coefficients; nanofabrication; nanostructured materials; periodic structures; silver; surface plasmon resonance; ultraviolet spectra; visible spectra; Ag; DDA calculation; discrete dipole approximation; electrical field distribution; extinction coefficient; extinction spectrum; liquid-solid-solution method; metal nanocrystals; optical properties; periodic structure; plasmonic properties; size distribution; sphere silver nanocrystals; surface plasmon resonance; Optical imaging; Optical surface waves; Quantum well devices; Sea surface; Wireless sensor networks;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2012 12th IEEE Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-4673-2198-3
DOI :
10.1109/NANO.2012.6322031
