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.
Chuang
S Y
SY
Department of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan.
Chen
H L
HL
Kuo
S S
SS
Lai
Y H
YH
Lee
C C
CC