Comparative study of enhanced fluorescence from nano sculptured thin films

I. Abdulhalim; Alina Karabchevsky; Christian Patzig; Bernd Rauschenbach; Bodo Fuhrmann

doi:10.1117/12.795139

10 September 2008 Comparative study of enhanced fluorescence from nano sculptured thin films

I. Abdulhalim, Alina Karabchevsky, Christian Patzig, Bernd Rauschenbach, Bodo Fuhrmann

Proceedings Volume 7041, Nanostructured Thin Films; 70410G (2008) https://doi.org/10.1117/12.795139
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

When an electromagnetic wave interacts with a nano structured metallic surface or a nanoparticle, the electromagnetic fields near the surface are greatly enhanced by factors up to 1000. This phenomenon is due to two processes: (i) the 'lightning rod' effect, conventionally described as the crowding of the electric field lines at a sharp metallic tip and (ii) the excitation of localized surface plasmons at the metal surface. Both are responsible for the enhancement of fluorescence, second-harmonic generation and Raman scattering. For metal nanoparticles often both processes are involved in creating the localized enhanced near field. Since sculptured thin films (STFs) can have a rod like structure and an overall large porosity, it is expected that these structures will exhibit enhanced fluorescence and Raman signals. Results of comparative study of surface enhanced fluorescence are presented from STFs containing metal nano structures. The highest enhancement is found for Ag based STFs giving an enhancement factor of x14.

Citation Download Citation

I. Abdulhalim, Alina Karabchevsky, Christian Patzig, Bernd Rauschenbach, and Bodo Fuhrmann "Comparative study of enhanced fluorescence from nano sculptured thin films", Proc. SPIE 7041, Nanostructured Thin Films, 70410G (10 September 2008); https://doi.org/10.1117/12.795139

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