A five-cavity bandpass is designed. The spectral transmittance simulates a Chebyshev polynomial. The same principles are used to design a bandpass that resides in a cemented cube at a 45° angle of incidence that has minimal polarization splitting.
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Coefficients in Eq. (11) for a Stack of Five Nonabsorbing Layers of Equal Optical Thickness, Where the Parameter ul is Related to the Refractive Index by Eq. (12)
The optical thickness of each layer is λ0/4. The refractive indices of low, high, L, and H are 1.35, 2.25, 1.35, and 2.25, respectively.
Table III
Design of a Bandpass Whose Transmittance is Similar to that Shown in Fig. 3.a
Cement
L
E3
L
H
LL
H
L
H
E2
H
L
HH
L
H
L
E1
L
H
LL
H
L
E1
L
H
L
HH
L
H
E2
H
L
H
LL
H
L
E3
L
Substrate
The refractive indices of cement, glass, L, H, E1, E2, and E3 are 1.52, 1.52, 1.35, 2.25, 2.14, 1.72, and 1.66, respectively. The optical thickness of L, H, E1E2, and E3 is λ0/4, where λ0 is 633 nm.
Table IV
Coefficients in the R/T Polynomial for Prototype Bandpasses with Specified Numbers of Sections, Ranging from Three to Seven; The Equations are Expressed in fortran Computer Language
Coefficients in Eq. (11) for a Stack of Five Nonabsorbing Layers of Equal Optical Thickness, Where the Parameter ul is Related to the Refractive Index by Eq. (12)
The optical thickness of each layer is λ0/4. The refractive indices of low, high, L, and H are 1.35, 2.25, 1.35, and 2.25, respectively.
Table III
Design of a Bandpass Whose Transmittance is Similar to that Shown in Fig. 3.a
Cement
L
E3
L
H
LL
H
L
H
E2
H
L
HH
L
H
L
E1
L
H
LL
H
L
E1
L
H
L
HH
L
H
E2
H
L
H
LL
H
L
E3
L
Substrate
The refractive indices of cement, glass, L, H, E1, E2, and E3 are 1.52, 1.52, 1.35, 2.25, 2.14, 1.72, and 1.66, respectively. The optical thickness of L, H, E1E2, and E3 is λ0/4, where λ0 is 633 nm.
Table IV
Coefficients in the R/T Polynomial for Prototype Bandpasses with Specified Numbers of Sections, Ranging from Three to Seven; The Equations are Expressed in fortran Computer Language