World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Journal of Applied Physics : Relaxation time effects on dynamic conductivity of alloyed metallic thin films in the infrared band

By D. J. Shelton, T. Sun, J. C. Ginn, K. R. Coffey, and G. D. Boreman

Click here to view

Book Id: WPLBN0002169355
Format Type: PDF eBook :
File Size: Serial Publication
Reproduction Date: 19 November 2008

Title: Journal of Applied Physics : Relaxation time effects on dynamic conductivity of alloyed metallic thin films in the infrared band  
Author: D. J. Shelton, T. Sun, J. C. Ginn, K. R. Coffey, and G. D. Boreman
Volume: Issue : November 2008
Language: English
Subject: Science, Physics, Natural Science
Collections: Periodicals: Journal and Magazine Collection, Journal of Applied Physics Collection
Historic
Publication Date:
Publisher: American Institute of Physics

Citation

APA MLA Chicago

Shelton, T. Sun, J. C. Ginn, K. R. Coffey, And G. D. Borema, D. J. (n.d.). Journal of Applied Physics : Relaxation time effects on dynamic conductivity of alloyed metallic thin films in the infrared band. Retrieved from http://hawaiilibrary.net/


Description
Description: The behavior of nanoscale infrared antenna elements depends upon the dynamic conductivity of thin metallic films. Spectroscopic ellipsometer measurements of noble metal films show that when the product of the incident radiation frequency and the relaxation time is greater than unity, anomalous dynamic electron transport effects occur. In this regime electron scattering increases the conductivity of alloyed metallic films as demonstrated by ellipsometry measurements of films from the Au-Cu system. A binary alloy thin film was fabricated with equal parts of Au and Cu, and the dynamic conductivity was measured to be 300% larger than the high frequency conductivity of pure Au or pure Cu films at wavelengths in the 3–5 μm band. When electronic scattering is reduced, ellipsometer measurements of Au and Cu films taken near 4 K demonstrate that the IR conductivity decreases to 20% of the value measured at 300 K at wavelengths in the 3–5 μm band. Using measured dc relaxation times, a model to explain deviations from Drude behavior was developed using the theory of the anomalous skin effect and frequency dependent relaxation time. This model was in quantitative agreement with the measured data. The ability to design an alloyed metallic thin film using a calculated ideal dc relaxation time to produce the greatest possible dynamic conductivity for infrared antennas and metamaterials was demonstrated.

 

Click To View

Additional Books


  • Physics of Fluids : Circulation and ener... Volume Issue : September 2008 (by )
  • The Journal of Chemical Physics : Kineti... Volume Issue : November 2008 (by )
  • Biblioteca Hispanica : Guide Cabinet of ... (by )
  • Journal of Mathematical Physics : Hydrod... Volume Issue : October 2008 (by )
  • Physics of Fluids : Topology and breakdo... Volume Issue : September 2008 (by )
  • Biblioteca Hispanica : Elementary Natura... (by )
  • Journal of Applied Physics : Multiferroi... Volume Issue : November 2008 (by )
  • The Journal of Chemical Physics : Struct... Volume Issue : November 2008 (by )
  • Journal of Applied Physics : Ultrafast h... Volume Issue : November 2008 (by )
  • Journal of Mathematical Physics : Symmet... Volume Issue : October 2008 (by )
  • The Journal of Chemical Physics : First-... Volume Issue : November 2008 (by )
  • Journal of Applied Physics : Electric fi... Volume Issue : November 2008 (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.