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Optical constants

Refractive index of CaF2 (Calcium fluoride)

Bosomworth 1967: k 47–1000 µm; 200 K

Data
tabulated k
Range
46.95–1000 µm
Points
204
Temperature
200 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 46.95–1000 µm
Refractive index n
—
Extinction coefficient k
0.0132253
Permittivity ε1
—
Permittivity ε2
—
Absorption coefficient α
7.65872 cm⁻¹
Penetration depth δ = λ/(2πk)
2.61140e+06 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
0.00571356 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

200 K

Conditions

temperature
200 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

204 rows as published
CSV comma separated TXT tab separated YAML n, k Full database record original YAML All quantities CSV JSON metadata
CaF2 (Calcium fluoride), Bosomworth 1967: k 47–1000 µm; 200 K: n and k versus wavelength
λ (µm)k
46.9480.0384
47.170.038
47.3930.0375
47.6190.037
47.8470.0366
48.0770.0361
48.3090.0356
48.5440.0351
48.780.0347
49.020.0342
49.2610.0338
49.5050.0334
49.7510.033
50.00.0326
50.2510.0323
50.5050.0319
50.7610.0316
51.020.0313
51.2820.0309
51.5460.0305
51.8130.0302
52.0830.0299
52.3560.0296
52.6320.0293
52.910.0291
53.1910.0288
53.4760.0285
53.7630.0282
54.0540.028
54.3480.0278
54.6450.0275
54.9450.0273
55.2490.027
55.5560.0268
55.8660.0265
56.180.0263
56.4970.026
56.8180.0258
57.1430.0255
57.4710.0253
57.8030.025
58.140.0247
58.480.0245
58.8240.0243
59.1720.024
59.5240.0237
59.880.0235
60.2410.0234
60.6060.0233
60.9760.0232
61.350.0231
61.7280.023
62.1120.0229
62.50.0228
62.8930.0227
63.2910.0226
63.6940.0225
64.1030.0225
64.5160.0225
64.9350.0225
65.3590.0225
65.7890.0225
66.2250.0224
66.6670.0224
67.1140.0225
67.5680.0225
68.0270.0226
68.4930.0226
68.9660.0227
69.4440.0227
69.930.0227
70.4230.0228
70.9220.0228
71.4290.0229
71.9420.023
72.4640.023
72.9930.0231
73.5290.0232
74.0740.0234
74.6270.0235
75.1880.0236
75.7580.0237
76.3360.0237
76.9230.0237
77.5190.0238
78.1250.0238
78.740.0239
79.3650.0239
80.00.0239
80.6450.024
81.3010.024
81.9670.024
82.6450.0241
83.3330.0241
84.0340.0241
84.7460.0241
85.470.0241
86.2070.0241
86.9570.0241
87.7190.0241
88.4960.0241
89.2860.0241
90.090.024
90.9090.024
91.7430.0239
92.5930.0239
93.4580.0238
94.340.0238
95.2380.0237
96.1540.0236
97.0870.0236
98.0390.0235
99.010.0234
100.00.0234
101.010.0233
102.040.0232
103.090.0232
104.170.0231
105.260.023
106.380.0229
107.530.0228
108.70.0227
109.890.0227
111.110.0225
112.360.0224
113.640.0223
114.940.0221
116.280.022
117.650.0219
119.050.0217
120.480.0216
121.950.0215
123.460.0213
125.00.0212
126.580.021
128.210.0208
129.870.0207
131.580.0205
133.330.0203
135.140.0201
136.990.0199
138.890.0197
140.850.0195
142.860.0193
144.930.0191
147.060.0189
149.250.0188
151.520.0186
153.850.0184
156.250.0183
158.730.018
161.290.0177
163.930.0174
166.670.0171
169.490.0169
172.410.0166
175.440.0163
178.570.016
181.820.0157
185.190.0154
188.680.0151
192.310.0148
196.080.0146
200.00.0143
204.080.014
208.330.0138
212.770.0135
217.390.0132
222.220.0129
227.270.0127
232.560.0125
238.10.0122
243.90.0119
250.00.0116
256.410.0112
263.160.0109
270.270.0105
277.780.0102
285.710.00989
294.120.00954
303.030.00917
312.50.0088
322.580.00844
333.330.00812
344.830.0078
357.140.00747
370.370.0071
384.620.0068
400.00.00654
416.670.00627
434.780.00598
454.550.00567
476.190.00544
500.00.0052
526.320.00494
555.560.00465
588.240.00438
625.00.00416
666.670.00396
714.290.00372
769.230.00347
833.330.0032
909.090.00294
1000.00.0027