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Optical constants

Refractive index of SrF2 (Strontium fluoride)

Bosomworth 1967: k 46.5–500 µm; 5 K

Data
tabulated k
Range
46.51–500 µm
Points
196
Temperature
5 K
Licence
CC0-1.0

Plot

Click the plot to set the calculator wavelength. Note: the source gives k only; n is not available.

At one wavelength

Range 46.51–500 µm
Refractive index n
—
Extinction coefficient k
0.000192412
Permittivity ε1
—
Permittivity ε2
—
Absorption coefficient α
0.159074 cm⁻¹
Penetration depth δ = λ/(2πk)
1.25728e+08 nm
Abbe number Vd
—
Chromatic dispersion dn/dλ
— µm⁻¹
Group index ng
—
Group velocity dispersion
— fs²/mm
Dispersion parameter D
— ps/(nm·km)
Photon energy
0.00815686 eV

ε = (n + ik)², α = 4πk/λ, ng = n − λ dn/dλ, GVD = λ³/(2πc²) d²n/dλ², D = −(λ/c) d²n/dλ². Group-velocity dispersion is given for formula data only.

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Comments and conditions

5 K

Conditions

temperature
5 K
Notes on the source data (kept exactly as published):
  • the source gives k only; n is not available

References

D. R. Bosomworth. Far-infrared optical properties of CaF2, SrF2, BaF2, and CdF2. Phys. Rev., 157, 709 (1967)
  • doi:10.1103/physrev.157.709 Far-Infrared Optical Properties of Ca<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Sr<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Ba<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, and Cd<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Physical Review (1967)

Cite

D. R. Bosomworth. Far-Infrared Optical Properties of Ca<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Sr<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, Ba<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>, and Cd<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">F</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>. Physical Review, 157, 709-715 (1967), doi:10.1103/physrev.157.709; Data from the refractiveindex.info database (M. N. Polyanskiy, Sci. Data 11, 94 (2024), doi:10.1038/s41597-023-02898-2)

Data

196 rows as published
CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata
SrF2 (Strontium fluoride), Bosomworth 1967: k 46.5–500 µm; 5 K: n and k versus wavelength
λ (µm)k
46.5120.017
46.7290.0145
46.9480.014
47.170.0145
47.3930.0151
47.6190.0153
47.8470.0143
48.0770.0133
48.3090.0121
48.5440.0108
48.780.00974
49.020.00591
49.2610.00531
49.5050.00473
49.7510.00422
50.00.00376
50.2510.00342
50.5050.00308
50.7610.00293
51.020.0027
51.2820.00264
51.5460.00262
51.8130.00263
52.0830.0027
52.3560.00286
52.6320.00292
52.910.00288
53.1910.00267
53.4760.00246
53.7630.00221
54.0540.00199
54.3480.00174
54.6450.00157
54.9450.00142
55.2490.00128
55.5560.00117
55.8660.00108
56.180.000993
56.4970.000916
56.8180.000853
57.1430.000797
57.4710.000753
57.8030.000715
58.140.000678
58.480.000643
58.8240.000608
59.1720.000575
59.5240.000547
59.880.00053
60.2410.000513
60.6060.000497
60.9760.000483
61.350.000471
61.7280.00046
62.1120.00045
62.50.000441
62.8930.000432
63.2910.000424
63.6940.000416
64.1030.00041
64.5160.000405
64.9350.000403
65.3590.000401
65.7890.0004
66.2250.000398
66.6670.000397
67.1140.000395
67.5680.000393
68.0270.000391
68.4930.000389
68.9660.000387
69.4440.000385
69.930.000382
70.4230.00038
70.9220.000377
71.4290.000375
71.9420.000373
72.4640.00037
72.9930.000368
73.5290.000366
74.0740.000363
74.6270.000361
75.1880.000358
75.7580.000356
76.3360.000353
76.9230.00035
77.5190.000347
78.1250.000344
78.740.000343
79.3650.000342
80.00.000341
80.6450.000339
81.3010.000336
81.9670.000333
82.6450.000326
83.3330.000309
84.0340.000289
84.7460.000275
85.470.000262
86.2070.000251
86.9570.000239
87.7190.000228
88.4960.000216
89.2860.000205
90.090.000194
90.9090.000184
91.7430.000177
92.5930.000179
93.4580.000173
94.340.000166
95.2380.000159
96.1540.000152
97.0870.000146
98.0390.000141
99.010.000137
100.00.000135
101.010.000133
102.040.00013
103.090.000128
104.170.000128
105.260.000128
106.380.00013
107.530.00013
108.70.00013
109.890.000132
111.110.000134
112.360.000137
113.640.000141
114.940.000145
116.280.000149
117.650.000154
119.050.00016
120.480.000166
121.950.000174
123.460.000188
125.00.0002
126.580.000207
128.210.000209
129.870.000208
131.580.000206
133.330.000203
135.140.0002
136.990.000198
138.890.000196
140.850.000193
142.860.000192
144.930.000191
147.060.000191
149.250.000191
151.520.000192
153.850.000194
156.250.000195
158.730.000195
161.290.000195
163.930.000194
166.670.000194
169.490.000193
172.410.000193
175.440.000194
178.570.000203
181.820.00022
185.190.000225
188.680.000226
192.310.000225
196.080.000223
200.00.00022
204.080.000217
208.330.000213
212.770.000209
217.390.000204
222.220.000199
227.270.000196
232.560.000193
238.10.000191
243.90.000187
250.00.000184
256.410.000179
263.160.000175
270.270.00017
277.780.000165
285.710.000161
294.120.000156
303.030.000152
312.50.000148
322.580.000143
333.330.000139
344.830.000135
357.140.00013
370.370.000126
384.620.000121
400.00.000116
416.670.00011
434.780.000103
454.559.66e-05
476.198.87e-05
500.07.96e-05