# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    M. R. Querry. Optical constants of minerals and other materials from the millimeter to the ultraviolet, <a href="https://apps.dtic.mil/sti/citations/ADA192210"><i>Contractor Report</i> CRDEC-CR-88009 (1987)</a>
COMMENTS: |
    Diesel soot sample obtained at New Mexico State University by open burning of diesel fuel.
DATA:
  - type: tabulated nk
    data: |
        0.2600 1.390 0.171
        0.2800 1.415 0.189
        0.3000 1.439 0.205
        0.3200 1.460 0.220
        0.3400 1.483 0.230
        0.3600 1.500 0.236
        0.3800 1.514 0.243
        0.4000 1.528 0.249
        0.4200 1.539 0.255
        0.4400 1.553 0.262
        0.4600 1.565 0.266
        0.4800 1.577 0.272
        0.5000 1.589 0.273
        0.5200 1.599 0.275
        0.5400 1.608 0.277
        0.5600 1.617 0.279
        0.5800 1.624 0.281
        0.6000 1.632 0.283
        0.6200 1.639 0.285
        0.6400 1.646 0.287
        0.6600 1.652 0.289
        0.6800 1.658 0.291
        0.7000 1.664 0.293
        0.7200 1.670 0.295
        0.7400 1.676 0.298
        0.7600 1.682 0.300
        0.7800 1.688 0.302
        0.8000 1.694 0.304
        0.8200 1.701 0.305
        0.8400 1.706 0.306
        0.8600 1.710 0.308
        0.8800 1.715 0.311
        0.9000 1.722 0.312
        0.9200 1.727 0.313
        0.9400 1.731 0.314
        0.9600 1.736 0.315
        0.9800 1.741 0.317
        1.0000 1.746 0.318
        1.0200 1.750 0.319
        1.0400 1.755 0.320
        1.0600 1.759 0.321
        1.0800 1.763 0.323
        1.1000 1.768 0.324
        1.1200 1.772 0.325
        1.1400 1.776 0.326
        1.1600 1.780 0.327
        1.1800 1.785 0.328
        1.2000 1.789 0.329
        1.2200 1.793 0.330
        1.2400 1.797 0.331
        1.2600 1.801 0.331
        1.2800 1.805 0.332
        1.3000 1.809 0.333
        1.3200 1.812 0.334
        1.3400 1.816 0.335
        1.3600 1.820 0.335
        1.3800 1.824 0.336
        1.4000 1.827 0.336
        1.4200 1.831 0.337
        1.4400 1.835 0.337
        1.4600 1.838 0.338
        1.4800 1.841 0.338
        1.5000 1.844 0.338
        1.5200 1.848 0.339
        1.5400 1.852 0.339
        1.5600 1.855 0.340
        1.5800 1.858 0.340
        1.6000 1.861 0.340
        1.6200 1.864 0.341
        1.6400 1.867 0.341
        1.6600 1.870 0.341
        1.6800 1.873 0.342
        1.7000 1.876 0.342
        1.7200 1.879 0.343
        1.7400 1.882 0.343
        1.7600 1.885 0.343
        1.7800 1.888 0.343
        1.8000 1.891 0.343
        1.8200 1.893 0.343
        1.8400 1.896 0.343
        1.8600 1.898 0.343
        1.8800 1.900 0.343
        1.9000 1.903 0.343
        1.9200 1.905 0.344
        1.9400 1.907 0.344
        1.9600 1.909 0.345
        1.9800 1.912 0.345
        2.0000 1.914 0.346
        2.0200 1.916 0.347
        2.0400 1.919 0.347
        2.0600 1.921 0.348
        2.0800 1.924 0.349
        2.1000 1.927 0.350
        2.1200 1.929 0.351
        2.1400 1.933 0.351
        2.1600 1.936 0.352
        2.1800 1.939 0.352
        2.2000 1.942 0.352
        2.2200 1.945 0.353
        2.2400 1.947 0.353
        2.2600 1.951 0.353
        2.2800 1.954 0.353
        2.3000 1.956 0.353
        2.3200 1.960 0.353
        2.3400 1.963 0.352
        2.3600 1.966 0.352
        2.3800 1.968 0.351
        2.4000 1.971 0.351
        2.4200 1.974 0.350
        2.4400 1.977 0.349
        2.4600 1.979 0.348
        2.4800 1.981 0.347
        2.5000 1.984 0.346
        2.5126 1.985 0.346
        2.5253 1.986 0.343
        2.5381 1.985 0.345
        2.5510 1.988 0.344
        2.5641 1.988 0.343
        2.5773 1.989 0.343
        2.5907 1.991 0.343
        2.6042 1.992 0.342
        2.6178 1.993 0.343
        2.6316 1.995 0.342
        2.6455 1.995 0.342
        2.6596 1.997 0.341
        2.6738 1.997 0.342
        2.6882 2.000 0.341
        2.7027 2.000 0.340
        2.7174 2.002 0.340
        2.7322 2.003 0.339
        2.7473 2.003 0.339
        2.7624 2.004 0.339
        2.7778 2.006 0.340
        2.7933 2.007 0.338
        2.8090 2.007 0.339
        2.8249 2.011 0.340
        2.8409 2.012 0.337
        2.8571 2.012 0.337
        2.8736 2.013 0.337
        2.8902 2.014 0.336
        2.9070 2.014 0.337
        2.9240 2.015 0.337
        2.9412 2.017 0.339
        2.9586 2.021 0.337
        2.9762 2.021 0.336
        2.9940 2.022 0.335
        3.0120 2.024 0.338
        3.0303 2.025 0.334
        3.0488 2.026 0.333
        3.0675 2.026 0.333
        3.0864 2.026 0.335
        3.1056 2.028 0.334
        3.1250 2.030 0.335
        3.1447 2.032 0.334
        3.1646 2.032 0.333
        3.1847 2.034 0.334
        3.2051 2.035 0.332
        3.2258 2.036 0.333
        3.2468 2.037 0.334
        3.2680 2.039 0.333
        3.2895 2.041 0.334
        3.3113 2.043 0.333
        3.3333 2.045 0.333
        3.3557 2.048 0.330
        3.3784 2.045 0.329
        3.4014 2.047 0.333
        3.4247 2.049 0.331
        3.4483 2.050 0.332
        3.4722 2.052 0.331
        3.4965 2.053 0.329
        3.5211 2.054 0.330
        3.5461 2.056 0.330
        3.5714 2.058 0.331
        3.5971 2.059 0.328
        3.6232 2.058 0.329
        3.6496 2.062 0.329
        3.6765 2.062 0.328
        3.7037 2.063 0.328
        3.7313 2.066 0.328
        3.7594 2.067 0.328
        3.7879 2.069 0.328
        3.8168 2.071 0.327
        3.8462 2.071 0.325
        3.8760 2.071 0.326
        3.9063 2.075 0.326
        3.9370 2.076 0.326
        3.9683 2.077 0.325
        4.0000 2.076 0.326
        4.0323 2.080 0.326
        4.0650 2.081 0.324
        4.0984 2.082 0.324
        4.1322 2.084 0.325
        4.1667 2.086 0.322
        4.2017 2.086 0.323
        4.2373 2.089 0.322
        4.2735 2.089 0.321
        4.3103 2.090 0.321
        4.3478 2.091 0.322
        4.3860 2.093 0.320
        4.4248 2.093 0.321
        4.4643 2.095 0.321
        4.5045 2.096 0.320
        4.5455 2.097 0.320
        4.5872 2.098 0.321
        4.6296 2.100 0.321
        4.6729 2.100 0.321
        4.7170 2.102 0.322
        4.7619 2.103 0.321
        4.8077 2.103 0.321
        4.8544 2.105 0.321
        4.9020 2.106 0.322
        4.9505 2.108 0.321
        5.0000 2.107 0.327
        5.0505 2.115 0.328
        5.1020 2.118 0.324
        5.1546 2.118 0.323
        5.2083 2.120 0.322
        5.2632 2.122 0.320
        5.3191 2.122 0.319
        5.3763 2.124 0.319
        5.4348 2.123 0.318
        5.4945 2.123 0.318
        5.5556 2.125 0.316
        5.6180 2.122 0.317
        5.6818 2.123 0.317
        5.7471 2.121 0.316
        5.8140 2.119 0.320
        5.8824 2.120 0.323
        5.9524 2.120 0.323
        6.0241 2.115 0.326
        6.0976 2.114 0.333
        6.1728 2.115 0.343
        6.2500 2.122 0.353
        6.3291 2.133 0.356
        6.4103 2.141 0.354
        6.4935 2.145 0.351
        6.5789 2.146 0.349
        6.6667 2.146 0.350
        6.7568 2.146 0.353
        6.8493 2.148 0.359
        6.9444 2.154 0.363
        7.0423 2.160 0.365
        7.1429 2.162 0.365
        7.2464 2.165 0.369
        7.3529 2.170 0.372
        7.4627 2.173 0.376
        7.5758 2.179 0.380
        7.6923 2.185 0.383
        7.8125 2.192 0.389
        7.9365 2.202 0.391
        8.0645 2.210 0.391
        8.1967 2.217 0.392
        8.3333 2.225 0.393
        8.4746 2.234 0.393
        8.6207 2.244 0.394
        8.7719 2.254 0.389
        8.9286 2.261 0.386
        9.0909 2.269 0.381
        9.2593 2.274 0.376
        9.4340 2.277 0.374
        9.6154 2.283 0.373
        9.8039 2.289 0.367
        10.0000 2.292 0.363
        10.2041 2.295 0.358
        10.4167 2.296 0.355
        10.6383 2.294 0.351
        10.8696 2.290 0.353
        11.1111 2.288 0.362
        11.3636 2.300 0.373
        11.6279 2.307 0.366
        11.9048 2.307 0.375
        12.1951 2.321 0.382
        12.5000 2.334 0.377
        12.8205 2.333 0.376
        13.1579 2.342 0.391
        13.5135 2.370 0.390
        13.8889 2.378 0.373
        14.2857 2.379 0.368
        14.7059 2.383 0.367
        15.1515 2.386 0.367
        15.6250 2.388 0.378
        16.1290 2.412 0.383
        16.6667 2.425 0.373
        17.2414 2.435 0.368
        17.8571 2.444 0.361
        18.5185 2.449 0.357
        19.2308 2.454 0.354
        20.0000 2.461 0.355
        20.8333 2.470 0.357
        21.7391 2.482 0.357
        22.7273 2.494 0.356
        23.8095 2.508 0.354
        25.0000 2.519 0.353
        26.3158 2.533 0.351
        27.7778 2.546 0.349
        29.4118 2.564 0.349
        31.2500 2.583 0.342
        33.3333 2.597 0.336
        35.7143 2.612 0.334
        38.4615 2.631 0.334
        41.6667 2.660 0.333
        45.4545 2.697 0.323
        50.0000 2.731 0.295
        55.5556 2.754 0.264