Using direct nanoimprinting to study extraordinary transmission in textured metal films.
In this paper, we describe a thermal embossing imprint method, which we name "nano-imprinting in metal" (NIM), for patterning metal films with a variety of profiles. Metal films exhibiting either perforated hole-arrays or corrugated structures with various surface morphologies can be fabricated rapidly. The SPR phenomenon allowed energy coupling to the other side of the textured metal film, causing a dramatic increase in the transmission. As a technique for readily controlling the working wavelength and transmittance, the NIM method has great potential for application in various optoelectronic devices.
Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan.
S Y
SY
Chuang
H L
HL
Chen
S S
SS
Kuo
Y H
YH
Lai
C C
CC
Lee