Abstract
Silver and gold films with thicknesses in the range of 120– were evaporated onto glass substrates. A sequence of slits with widths varying between 70 and was milled in the films using a focused gallium ion beam. We have undertaken high-resolution measurements of the optical transmission through the single slits with (for Ag) and (for Au) laser sources aligned to the optical axis of a microscope. Based on the present experimental results, it was possible to observe that (1) the slit transmission is notably affected by the film thickness, which presents a damped oscillatory behavior as the thickness is augmented, and (2) the transmission increases linearly with increasing slit width for a fixed film thickness.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
John Weiner
Opt. Express 19(17) 16139-16153 (2011)
Yong Xie, Armis R. Zakharian, Jerome V. Moloney, and Masud Mansuripur
Opt. Express 13(12) 4485-4491 (2005)
Myeong-Woo Kim, Teun-Teun Kim, Jae-Eun Kim, and Hae Yong Park
Opt. Express 17(15) 12315-12322 (2009)