Continuing the work of the first paper in this series [Appl. Opt. 50, 4998–5011 (2011)APOPAI0003-6935], we extend our design methods to compound prisms composed of three independent elements. The increased degrees of freedom of these asymmetric prisms allow designers to achieve greatly improved dispersion linearity. They also, however, require a more careful tailoring of the merit function to achieve design targets, and so we present several new operands for manipulating the compound prisms’ design algorithm. We show that with asymmetric triplet prisms, one can linearize the angular dispersion such that the spectral sampling rate varies by no more than 4% across the entire visible spectral range. Doing this, however, requires large prisms and causes beam compression. By adding a beam compression penalty to the merit function, we show that one can compromise between dispersion linearity and beam compression in order to produce practical systems. For prisms that do not deviate the beam, we show that Janssen prisms provide a form that maintains the degrees of freedom of the triplet and that are capable of up to of dispersion across the visible spectral range. Finally, in order to showcase some of the design flexibility of three-element prisms, we also show how to design for higher-order spectral dispersion to create a two-dimensional spectrum.
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All of the designs are nondeviating () and constrained to interface angles of or less. Figure 2 shows the dispersions of all fifteen prisms listed below.
For an explanation of column K, see Sec. 3 below.
Note that section (c) of the table uses a different merit function than the previous two sections, as indicated.
Table 2
Best-Performing Prism Triplets for , Optimized Over the Schott Glass Cataloga
Glass 1
Glass 2
Glass 3
(deg)
(deg)
(deg)
(deg)
Δ (deg)
NL ()
SSR
K
, ,
1a
CAF2
LASF47
SF2
87.03
92.01
0.000
1.000
0.177
2.53
1.00
2a
CAF2
LASF44
F5
91.03
93.27
0.000
1.000
0.179
2.63
1.00
3a
CAF2
LASF46A
SF56A
84.61
93.17
0.000
1.000
0.181
2.60
1.00
4a
CAF2
LAF33
F2
89.08
93.11
0.000
1.000
0.192
2.81
1.00
5a
CAF2
LAF35
BAF4
86.18
92.22
0.000
1.000
0.192
2.82
1.00
, ,
1b
CAF2
LAK33A
CAF2
94.94
94.94
0.000
3.984
1.762
5.74
1.00
2b
CAF2
LAK33A
PK52A
94.14
94.92
3.903
1.766
5.91
0.99
3b
CAF2
LASF31A
BAF4
92.84
92.91
0.000
3.982
1.785
6.40
1.00
4b
CAF2
LAK33A
FK51A
94.58
94.90
3.963
1.792
5.93
1.00
5b
CAF2
LAF34
CAF2
91.94
91.94
0.000
3.983
1.806
5.97
1.00
, ,
1c
CAF2
LASF40
CAF2
99.51
99.62
3.967
0.736
2.56
1.00
2c
CAF2
LASF46A
CAF2
92.60
92.60
3.995
0.768
2.63
1.00
3c
CAF2
LASF9
CAF2
94.28
94.28
0.000
3.994
0.773
2.65
1.00
4c
CAF2
LASF45
PK52A
96.57
96.61
3.938
0.777
2.69
0.99
5c
CAF2
LASF45
FK51A
96.92
96.80
3.966
0.780
2.69
1.00
All of the designs are nondeviating () and are constrained to interface angles of or less. Figure 3 shows the dispersions of all 15 prisms.
Table 3
Bst-Performing Janssen Prisms for and Optimized Over the Schott Glass Cataloga
Glass 1
Glass 2
Glass 3
(deg)
(deg)
(deg)
(deg)
Δ (deg)
NL ()
SSR
K
, ,
1a
CAF2
LASF40
LAK8
90.57
12.48
0.000
0.998
0.131
1.94
1.00
2a
CAF2
BASF2
LAK14
88.88
10.85
0.997
0.146
1.91
1.00
3a
CAF2
SF67
KZFS2
79.35
2.88
0.000
0.998
0.147
2.07
1.00
4a
CAF2
LASF40
LAF34
88.58
17.95
0.000
0.998
0.151
2.02
1.00
5a
PK52A
LAFN7
LAK33A
89.95
10.83
0.000
0.997
0.156
2.29
1.00
, ,
1b
CAF2
SF6
LASF31A
101.78
13.05
0.001
3.998
0.193
3.38
1.00
2b
CAF2
LASF9
LASF31A
99.88
20.81
0.000
3.999
0.205
3.56
1.00
3b
CAF2
SF14
LASF40
99.57
17.87
0.002
3.996
0.223
3.76
1.00
4b
CAF2
SF66
LASF41
98.86
5.18
0.000
3.998
0.241
4.07
1.00
5b
CAF2
SF4
LASF31A
103.08
17.07
0.000
4.000
0.242
2.82
1.00
, ,
1c
CAF2
SF8
LASF31A
103.57
14.59
0.005
7.958
2.615
4.55
1.00
2c
FK51A
LASF44
BAF4
102.02
128.30
0.003
7.971
2.882
4.90
1.00
3c
CAF2
LASF44
BAF4
102.53
105.53
0.003
7.971
2.918
4.84
1.00
4c
PK52A
LASF31A
BASF2
98.79
106.15
7.949
2.950
5.18
1.00
5c
PK51
LASF31A
BASF2
98.96
111.46
0.000
7.954
2.981
5.24
1.00
Dispersions and layouts of the prisms are shown in Fig. 5.
Table 4
Best-Performing Triplet Prisms Optimized for Second-Order Dispersion, for , (a) the Schott Glass Catalog, and (b) ZEMAX’s Infrared Glass Catalog
Glass 1
Glass 2
Glass 3
(deg)
(deg)
(deg)
(deg)
Δ (deg)
(deg)
, ,
1a
LASF43
LASF31A
FK51A
84.86
84.33
44.997
0.099
0.003
2a
KZFS5
LASF31A
PK51
92.65
78.47
44.998
0.099
0.015
3a
BAF52
LASF31A
BAK4
95.73
72.93
44.997
0.099
0.020
4a
BAF52
LASF31A
PSK3
94.66
66.79
44.996
0.097
0.025
5a
BALF5
LASF31A
BAF52
98.82
71.45
44.998
0.098
0.021
, ,
1b
K10
KZFS2
SRF2
73.26
91.58
43.981
0.962
17.246
2.290
2b
K10
BAF2
SK11
121.78
44.370
0.896
16.394
2.682
3b
F_SILICA
CAF2
BAK1
116.01
43.352
0.919
16.000
2.577
4b
SF6
PBF2
LAK21
96.02
44.759
0.967
15.644
4.190
5b
K10
KZFS2
CAF2
94.54
44.199
0.856
15.642
1.578
Tables (4)
Table 1
Best-Performing Prism Triplets for , Optimized Over the Schott Glass Cataloga
All of the designs are nondeviating () and constrained to interface angles of or less. Figure 2 shows the dispersions of all fifteen prisms listed below.
For an explanation of column K, see Sec. 3 below.
Note that section (c) of the table uses a different merit function than the previous two sections, as indicated.
Table 2
Best-Performing Prism Triplets for , Optimized Over the Schott Glass Cataloga
Glass 1
Glass 2
Glass 3
(deg)
(deg)
(deg)
(deg)
Δ (deg)
NL ()
SSR
K
, ,
1a
CAF2
LASF47
SF2
87.03
92.01
0.000
1.000
0.177
2.53
1.00
2a
CAF2
LASF44
F5
91.03
93.27
0.000
1.000
0.179
2.63
1.00
3a
CAF2
LASF46A
SF56A
84.61
93.17
0.000
1.000
0.181
2.60
1.00
4a
CAF2
LAF33
F2
89.08
93.11
0.000
1.000
0.192
2.81
1.00
5a
CAF2
LAF35
BAF4
86.18
92.22
0.000
1.000
0.192
2.82
1.00
, ,
1b
CAF2
LAK33A
CAF2
94.94
94.94
0.000
3.984
1.762
5.74
1.00
2b
CAF2
LAK33A
PK52A
94.14
94.92
3.903
1.766
5.91
0.99
3b
CAF2
LASF31A
BAF4
92.84
92.91
0.000
3.982
1.785
6.40
1.00
4b
CAF2
LAK33A
FK51A
94.58
94.90
3.963
1.792
5.93
1.00
5b
CAF2
LAF34
CAF2
91.94
91.94
0.000
3.983
1.806
5.97
1.00
, ,
1c
CAF2
LASF40
CAF2
99.51
99.62
3.967
0.736
2.56
1.00
2c
CAF2
LASF46A
CAF2
92.60
92.60
3.995
0.768
2.63
1.00
3c
CAF2
LASF9
CAF2
94.28
94.28
0.000
3.994
0.773
2.65
1.00
4c
CAF2
LASF45
PK52A
96.57
96.61
3.938
0.777
2.69
0.99
5c
CAF2
LASF45
FK51A
96.92
96.80
3.966
0.780
2.69
1.00
All of the designs are nondeviating () and are constrained to interface angles of or less. Figure 3 shows the dispersions of all 15 prisms.
Table 3
Bst-Performing Janssen Prisms for and Optimized Over the Schott Glass Cataloga
Glass 1
Glass 2
Glass 3
(deg)
(deg)
(deg)
(deg)
Δ (deg)
NL ()
SSR
K
, ,
1a
CAF2
LASF40
LAK8
90.57
12.48
0.000
0.998
0.131
1.94
1.00
2a
CAF2
BASF2
LAK14
88.88
10.85
0.997
0.146
1.91
1.00
3a
CAF2
SF67
KZFS2
79.35
2.88
0.000
0.998
0.147
2.07
1.00
4a
CAF2
LASF40
LAF34
88.58
17.95
0.000
0.998
0.151
2.02
1.00
5a
PK52A
LAFN7
LAK33A
89.95
10.83
0.000
0.997
0.156
2.29
1.00
, ,
1b
CAF2
SF6
LASF31A
101.78
13.05
0.001
3.998
0.193
3.38
1.00
2b
CAF2
LASF9
LASF31A
99.88
20.81
0.000
3.999
0.205
3.56
1.00
3b
CAF2
SF14
LASF40
99.57
17.87
0.002
3.996
0.223
3.76
1.00
4b
CAF2
SF66
LASF41
98.86
5.18
0.000
3.998
0.241
4.07
1.00
5b
CAF2
SF4
LASF31A
103.08
17.07
0.000
4.000
0.242
2.82
1.00
, ,
1c
CAF2
SF8
LASF31A
103.57
14.59
0.005
7.958
2.615
4.55
1.00
2c
FK51A
LASF44
BAF4
102.02
128.30
0.003
7.971
2.882
4.90
1.00
3c
CAF2
LASF44
BAF4
102.53
105.53
0.003
7.971
2.918
4.84
1.00
4c
PK52A
LASF31A
BASF2
98.79
106.15
7.949
2.950
5.18
1.00
5c
PK51
LASF31A
BASF2
98.96
111.46
0.000
7.954
2.981
5.24
1.00
Dispersions and layouts of the prisms are shown in Fig. 5.
Table 4
Best-Performing Triplet Prisms Optimized for Second-Order Dispersion, for , (a) the Schott Glass Catalog, and (b) ZEMAX’s Infrared Glass Catalog