µ¦¦³»
¤ª·
µµ¦Â¨³Á°¨µª·
´
¥ ¤®µª·
¥µ¨´
¥´
¬·
¦´Ê
¸É
19 ¦³Î
µe
2552
5
Results and Discussion
Optical constants of thin films
The optical properties of a homogeneous thin film are fully described by its complex index of refraction
N=n(
O
)-
i
k(
O
)
where
n
is the real part and
k
is the imaginary part while
O
is the wavelength. In this work, we have
evaluated the optical constants of Ag-alloy and TiO
2
films by TFCalc. Fig. 3 and Fig.4 have shown a transmission
spectrum of Ag-alloy and TiO
2
thin films respectively which measurement from spectrophotometer and simulation
from TFCalc.
Fig. 3 Transmission spectrum of Ag-alloy thin film with 30 nm thick. The solid line is the experiment value.
The circles are the simulation values.
Fig. 4 Transmission spectrum of TiO
2
thin film with 30 nm thick. The solid line is the experiment value.
The circles are the simulation values.
