Cathodoluminescence study of silver and gold lamellar gratings

Janardan Nath; Casey Schwarz; Yuqing Lin; Evan Smith; R. E. Peale; L. Chernyak; Walter R. Buchwald; Jane Lee

doi:10.1117/12.884162

13 May 2011 Cathodoluminescence study of silver and gold lamellar gratings

Janardan Nath, Casey Schwarz, Yuqing Lin, Evan Smith, R. E. Peale, L. Chernyak, Walter R. Buchwald, Jane Lee

Author Affiliations +

Proceedings Volume 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III; 80312V (2011) https://doi.org/10.1117/12.884162
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Cathodo-luminescence spectroscopy is performed on silver and gold lamellar gratings of period 7.5 or 20 microns for a range of grating amplitudes from 0.1 to 4.6 microns. The overall emission spectrum consists of a 400 nm wide band centered at ~600 nm which depends little on the grating amplitude, metal, or e-beam energy. For the larger grating amplitudes the emission spectrum is periodically modulated as a function of wavelength. Both the strength of the emission envelop and the depth and phase of the modulation depend on grating orientation with respect to the light collection axis, the distance of the excitation spot from the grating, and the distance between the grating and the collection optics. The modulation can be explained as interference of surface emission from grating bars and grooves. The origin of the emission remains unclear, as mechanisms of electron collision with image charge, transition radiation, surface contamination, and inverse photo-electron effect all fail to explain the observed spectrum. This work is relevant to the interpretation of cathodoluminescence studies of surface plasmons on structured metals for nano-photonic applications.

Citation Download Citation

Janardan Nath, Casey Schwarz, Yuqing Lin, Evan Smith, R. E. Peale, L. Chernyak, Walter R. Buchwald, and Jane Lee "Cathodoluminescence study of silver and gold lamellar gratings", Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 80312V (13 May 2011); https://doi.org/10.1117/12.884162

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