The structural and optical properties of (PbS)n clusters in the silica optical fiber material

Yana Shang; Long Li; Jianxiang Wen; Yanhua Dong; Tingyun Wang

doi:10.1117/12.1000024

20 November 2012 The structural and optical properties of (PbS)_n clusters in the silica optical fiber material

Yana Shang, Long Li, Jianxiang Wen, Yanhua Dong, Tingyun Wang

Proceedings Volume 8564, Nanophotonics and Micro/Nano Optics; 85641V (2012) https://doi.org/10.1117/12.1000024
Event: Photonics Asia, 2012, Beijing, China

Abstract

The structures and optical properties of (PbS)_n cluster in silica optical fiber material are investigated. The microstructures models of (PbS)_n (n=1-4) and PbS-(SiO2)_n (n=1-6) have been built and calculated by Gaussian-03 software using density functional theory with the B3LYP level. The gap between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) is also calculated for microstructures. Compared with the (PbS)_n clusters and (SiO2)_n clusters, The HOMO-LUMO gaps of (PbS)_nclusters combined with (SiO2)n clusters make a big difference. The geometry structures of (PbS)_n-(SiO2)₄ (n=2-4) clusters are calculated by using the singles configuration interaction (CIS) method. The calculation results show that the excitation energies of (PbS)_n-(SiO2)₄ clusters changed as the sizes or the structures are changed. The PbS-doped silica optical fiber is fabricated, and the optical properties are measured to compare with the theoretical results.

Citation Download Citation

Yana Shang, Long Li, Jianxiang Wen, Yanhua Dong, and Tingyun Wang "The structural and optical properties of (PbS)_n clusters in the silica optical fiber material", Proc. SPIE 8564, Nanophotonics and Micro/Nano Optics, 85641V (20 November 2012); https://doi.org/10.1117/12.1000024

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available