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Optical constants

Refractive index of CaF2 (Calcium fluoride)

Bosomworth 1967: k 45–1000 µm; 5 K

Data
tabulated k
Range
45.05–1000 µm
Points
213
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 45.05–1000 µm
Refractive index n
—
Extinction coefficient k
0.000603347
Permittivity ε1
—
Permittivity ε2
—
Absorption coefficient α
0.357636 cm⁻¹
Penetration depth δ = λ/(2πk)
5.59228e+07 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
0.00584831 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

213 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 45–1000 µm; 5 K: n and k versus wavelength
λ (µm)k
45.0450.000655
45.2490.000637
45.4550.000619
45.6620.000602
45.8720.000586
46.0830.000572
46.2960.000558
46.5120.000546
46.7290.000535
46.9480.000524
47.170.000513
47.3930.000503
47.6190.000493
47.8470.000484
48.0770.000476
48.3090.000469
48.5440.000462
48.780.000456
49.020.00045
49.2610.000444
49.5050.000439
49.7510.000433
50.00.000428
50.2510.000423
50.5050.000418
50.7610.000414
51.020.000409
51.2820.000405
51.5460.000402
51.8130.000398
52.0830.000395
52.3560.000392
52.6320.000389
52.910.000387
53.1910.000385
53.4760.000383
53.7630.000382
54.0540.000381
54.3480.00038
54.6450.000379
54.9450.000377
55.2490.000376
55.5560.000375
55.8660.000373
56.180.000372
56.4970.000371
56.8180.000369
57.1430.000368
57.4710.000367
57.8030.000365
58.140.000364
58.480.000363
58.8240.000362
59.1720.000361
59.5240.00036
59.880.000358
60.2410.000357
60.6060.000356
60.9760.000355
61.350.000354
61.7280.000353
62.1120.000352
62.50.000351
62.8930.00035
63.2910.000349
63.6940.000348
64.1030.000347
64.5160.000347
64.9350.000346
65.3590.000346
65.7890.000347
66.2250.000348
66.6670.000349
67.1140.000351
67.5680.000353
68.0270.000354
68.4930.000356
68.9660.000357
69.4440.000357
69.930.000357
70.4230.000358
70.9220.000358
71.4290.000358
71.9420.000359
72.4640.000359
72.9930.000361
73.5290.000362
74.0740.000363
74.6270.000364
75.1880.000365
75.7580.000366
76.3360.000367
76.9230.000368
77.5190.000369
78.1250.000371
78.740.000373
79.3650.000377
80.00.000381
80.6450.000386
81.3010.000391
81.9670.000396
82.6450.0004
83.3330.000403
84.0340.000406
84.7460.000408
85.470.00041
86.2070.00041
86.9570.00041
87.7190.000412
88.4960.000418
89.2860.000427
90.090.000437
90.9090.000446
91.7430.000454
92.5930.000459
93.4580.000463
94.340.000466
95.2380.000468
96.1540.00047
97.0870.000473
98.0390.000477
99.010.000482
100.00.000487
101.010.000493
102.040.000499
103.090.000506
104.170.000514
105.260.000521
106.380.000528
107.530.000534
108.70.000539
109.890.000544
111.110.000548
112.360.000551
113.640.000555
114.940.000559
116.280.000563
117.650.000566
119.050.00057
120.480.000574
121.950.000578
123.460.000581
125.00.000584
126.580.000586
128.210.000589
129.870.000591
131.580.000594
133.330.000597
135.140.0006
136.990.000604
138.890.000609
140.850.000613
142.860.000618
144.930.000623
147.060.000627
149.250.000631
151.520.000635
153.850.000638
156.250.00064
158.730.000642
161.290.000644
163.930.000646
166.670.000646
169.490.000647
172.410.000646
175.440.000645
178.570.000643
181.820.000639
185.190.000633
188.680.000627
192.310.000621
196.080.000616
200.00.000612
204.080.000608
208.330.000605
212.770.000603
217.390.000601
222.220.000599
227.270.000598
232.560.000597
238.10.000596
243.90.000596
250.00.000595
256.410.000589
263.160.000583
270.270.000576
277.780.000569
285.710.00056
294.120.000549
303.030.000535
312.50.000517
322.580.000501
333.330.00049
344.830.000482
357.140.000475
370.370.000468
384.620.000462
400.00.000457
416.670.000453
434.780.000452
454.550.000451
476.190.000435
500.00.000428
526.320.000426
555.560.000423
588.240.000419
625.00.000414
666.670.000404
714.290.000388
769.230.000361
833.330.000321
909.090.000267
1000.00.000198