Effect of Cryogenic Substrate Temperature on the Growth of Ag and Cu Nanostructured Optical Metamaterials

Author

Shah, Piyush ; Niu, Xiaoxu ; Sarangan, Andrew

Author_Institution

Univ. of Dayton, Dayton, OH, USA

fYear

2012

fDate

21-23 May 2012

Firstpage

1

Lastpage

2

Abstract

We demonstrate an improved technique to grow glancing angle nanostructured thin films of silver and copper using electron-beam evaporation. Silver has particular interest for optical metamaterial activity, but unlike most other metals, the surface mobility of these atoms makes it difficult to grow distinct nanocolumns. By cryogenically cooling the substrate, we demonstrate that these metals can show marked improvement in their nanocolumn structure.

Keywords

cooling; copper; cryogenics; electron beam deposition; metallic thin films; metamaterials; nanofabrication; nanostructured materials; optical materials; optical rotation; silver; vacuum deposition; Ag; Ag nanostructured optical metamaterial growth; Cu; Cu nanostructured optical metamaterial growth; atom surface mobility; copper glancing angle nanostructured thin film; cryogenic cooling; cryogenic substrate temperature effect; electron-beam evaporation; improved technique; nanocolumn structure; optical metamaterial activity; silver glancing angle nanostructured thin film; Cryogenics; Optical device fabrication; Optical films; Substrates; Surface morphology; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2012 Symposium on

Conference_Location

Shanghai

ISSN

2156-8464

Print_ISBN

978-1-4577-0909-8

Type

conf

DOI

10.1109/SOPO.2012.6270908

Filename

6270908