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6.3 Index of Refraction

 

Index of

Refraction n of Helium, He

 

λvac(µm )

λair(µm )

n (273 K)

R e f .

0.092

 

1.0000485

1

O.1000

 

1.0000453

1

0.1100

 

1.0000426

1

0.1200

 

1.0000407

1

0.1300

 

1.0000396

1

0.1400

 

1.0000389

1

0.1500

 

1.0000383

1

0.1600

 

1.0000378

1

0.1700

 

1.0000374

1

0.1800

 

1.0000373

1

0.1820

 

1.00003720

3

0.184949

 

1.00003718

3

0.194232

 

1.00003690

3

0.213923

 

1.00003634

3

0.228872

 

1.00003601

3

0.253728

 

1.00003549

3

 

0.275278

1.00003573

3,4

 

0.289360

1.00003562

3,4

 

0.292541

1.00003559

3,4

 

0.296728

1.00003557

3,4

 

0.302150

1.00003553

3,4

 

0.312566

1.00003547

3,4

 

0.334148

1.00003536

3,4

 

0.366328

1.00003523

3,4

 

0.390641

1.00003516

3,4

 

0.404656

1.00003512

3,4

 

0.435835

1.00003505

3,4

 

0.479992

1.00003498

5

 

0.508582

1.00003494

5

 

0.521007

1.00003493

3

0.546226

0.546074

1.00003490

3

0.577120

0.576959

1.00003486

3

0.579227

0.579065

1.00003486

3

0.644025

0.643847

1.00003481

3

 

0.742511

1.00003477

5

 

0.826452

1.00003474

5

 

0.912296

1.00003472

5

 

1.013979

1.00003470

5

© 2003 by CRC Press LLC

Index of Refraction n of Helium, He—continued

λvac(µm )

λair(µm )

n (273 K)

R e f .

 

1.371857

1.00003466

5

 

1.529596

1.00003465

5

 

2.058128

1.00003464

5

References:

1.Huber, M. C. E. and Tondello, G., Refractive index of He in the region 920 AA, J. Opt. Soc. Am. 64, 390 (1974).

2.Abjean, R., Mehu, A., and Johannin-Gilles, A., Comptes Rendus 271, 835 (1970).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974).

4.Cuthbertson, C. and Cuthbertson, M., Proc. Roy. Soc. A 135, 40 (1932).

5.Mansfield, C. R. and Peck, E. R., Dispersion of helium, J. Opt. Soc. Am. 59, 199 (1969).

Dispersion formula [λ (µ m) in vacuum at T = 273 K]

Range (µm )

n = 1 + 0.01470091λ2/423.98λ2 – 1

0.48–2.06

Reference: Mansfield, C. R. and Peck, E. R., Dispersion of helium, J. Opt. Soc. Am. 59, 199 (1969).

 

Index of

Refraction n of Neon, Ne

 

λvac(µm )

λair(µm )

n (273 K)

R e f .

0.1404

 

1.00007736

1

0.1525

 

1.00007520

1

0.1641

 

1.00007317

1

0.1702

 

1.00007280

1

0.180731

 

1.00007221

1

0.184949

 

1.00007190

1

0.194232

 

1.00007095

1

0.213923

 

1.00007017

1

0.228872

 

1.00006941

1

0.253728

 

1.00006872

1

 

0.289360

1.00006860

2,3

 

0.296728

1.00006850

2,3

 

0.302150

1.00006843

2,3

 

0.313183

1.00006831

2,3

 

0.334148

1.00006812

2,3

 

0.366328

1.00006788

2,3

 

0.390641

1.00006773

2,3

 

0.404656

1.00006766

2,3

 

0.407781

1.00006765

2,3

 

0.435835

1.00006753

2,3

 

0.479992

1.00006739

2

© 2003 by CRC Press LLC

Index of Refraction n of Neon, Ne—continued

λvac(µm )

λair(µm )

n (273 K)

R e f .

 

0.491604

1.00006736

2,3

 

0.508582

1.00006731

2

 

0.521007

1.00006729

2

0.546226

0.546074

1.00006724

2

0.577120

0.576959

1.00006718

2

0.579227

0.579065

1.00006718

2

0.644025

0.643847

1.00006711

2

References:

1.Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, A., Measurement of refractive indexes of He, Ar, Kr, and Xe in the 253.7–140.4 nm wavelength range. Dispersion relation and estimated oscillator strength of the resonance lines, J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

2.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974).

3.Cuthbertson, C. and Cuthbertson, M., Proc. Roy. Soc. A 135, 40 (1932).

Dispersion formula [λ (µ m) in vacuum at T = 273 K]

Range (µm )

n = 1 + 0.012055[0.1063λ2/(184.661λ2 – 1) + 182.90λ2/(376.840λ2 – 1)]

0.14–0.66

Reference: Bideau-Mehu, A., Guern, R. Abjean, Y., and Johannin-Gilles, A., Measurement of refractive indexes of He, Ar, Kr, and Xe in the 253.7–140.4 nm wavelength range. Dispersion relation and estimated oscillator strength of the resonance lines, J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

Index of Refraction n of Argon, Ar (vacuum ultraviolet)

λvac(µm )

n (273 K)

R e f .

λvac(µm )

n (273 K)

R e f .

0.1110

1.0008025

1

0.1700

1.0003451

1

0.1140

1.0006435

1

0.1702

1.0003446

2

0.1160

1.0005878

1

0.1805

1.0003352

1

0.1180

1.0005492

1

0.180731

1.0003352

2

0.1200

1.0005200

1

0.184949

1.0003315

2

0.1210

1.0005080

1

0.1850

1.0003318

1

0.1216

1.0005016

1

0.1900

1.0003281

1

0.1250

1.0004707

1

0.194232

1.0003256

2

0.1300

1.0004394

1

0.2000

1.0003220

1

0.1350

1.0004166

1

0.2100

1.0003169

1

0.1400

1.0003966

1

0.213923

1.0003150

2

0.1404

1.0003964

2

0.2200

1.0003127

1

0.1500

1.0003749

1

0.228872

1.0003102

2

0.1525

1.0003685

2

0.2300

1.0003091

1

0.1600

1.0003577

1

0.253728

1.0003029

2

0.1641

1.0003514

2

 

 

 

 

 

 

 

 

 

© 2003 by CRC Press LLC

Index of Refraction Index n of Argon, Ar (ultraviolet, visible, and near infrared)

λvac(µm )

λair(µm )

n

(273 K)

R e f .

 

0.230209

1.00030922

3

 

0.234555

1.00030786

3

 

0.237999

1.

00030689

3

 

0.244691

1.00030507

3

 

0.246407

1.00030463

3

 

0.257630

1.00030202

3

 

0.267499

1.00030002

3

 

0.275278

1.00029865

3

 

0.275971

1.00029852

3

 

0.289357

1.00029643

3

 

0.292541

1.00029599

3

 

0.334148

1.00029135

3

 

0.380166

1.00028806

3

 

0.410807

1.00028285

3

0.467947

0.467816

1.00028434

3,4

0.480126

0.479992

1.00028399

3

 

 

1.00028398

3,4

 

0.491604

1.00028368

3

0.508724

0.508582

1.00028325

3,4

 

 

1.00028322

3

 

0.521007

1.00028296

3

0.546226

0.546074

1.00028247

3

 

0.567717

1.00028209

3

0.577120

0.576959

1.00028190

3

0.579227

0.579065

1.00028190

3

0.644025

0.643847

1.00028103

3

0.703435

0.703241

1.00028045

3,4

0.724716

0.724511

1.00028028

3,4

0.826679

0.826452

1.00027962

3,4

0.912547

0.912296

1.00027923

3,4

0.922703

0 922449

1.00027920

3,4

0.966043

0.965778

1.00027904

3,4

1.014257

1.013979

1.00027890

3,4

1.372233

1.371857

1.00027825

3,4

1.475650

1.475246

1.00027814

3,4

1.529354

1.528936

1.00027810

3,4

1.530015

1.529596

1.00027809

3,4

1.694521

1.694057

1.00027798

3,4

2.058691

2.058128

1.00027782

3,4

 

 

 

 

 

© 2003 by CRC Press LLC

References:

1.Chashchina, G. I., Gladushchak, V. I., and Shreider, E. Ya., Opt. Spektrosk. 24, 1008-1010 (1968) English transl.: Opt. Spectrosc. USSR 24, 542 (1968).

2 . Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, A., J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974).

4.Peck, E. R. and Fisher, D. J., J. Opt. Soc. Am. 54, 1362 (1964).

Temperature variation of the index of refraction of argon at 293 K.

 

 

dn/dT (K-1) = -0.897x10-6

at 546.1 nm

 

 

dn/dT (K-1) = -0.894x10-6

at 632.8 nm

 

 

 

 

 

Dispersion formula [λ in vacuum (µ m) at T = 273 K]

Range (µm )

R e f .

n = 1 + 0.012055[0.2075λ2/(91.012 λ2 – 1) + 0.0415λ2/(87.892λ2 – 1)

0.14–2.1

1

+ 4.3330λ2/(214.02λ2 – 1)]

 

 

n = 1 + [67.86711 + 30182.943λ2/(144λ2 – 1)]x10-6

0.47–2.06

2

References:

1. Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, A., Measurement of refractive indexes of He, Ar, Kr, and Xe in the 253.7–140.4 nm wavelength range. Dispersion relation and estimated oscillator strength of the resonance lines, J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

2. Peck, E. R. and Fisher, D. J., J. Opt. Soc. Am. 54, 1362-1364 (1964).

Index of Refraction n of Krypton, Kr

λvac(µm )

λair(µm )

n (273 K)

R e f .

0.1404

 

1.0007723

1

0.1525

 

1.0006548

1

0.1641

 

1.0005973

1

0.16846

 

1.0005829

2

0.16991

 

1.0005780

2

0.17015

 

1.0005773

2

0.1702

 

1.0005801

1

0.17044

 

1.0005767

2

0.17134

 

I .0005740

2

0.17224

 

1.0005718

2

0.18169

 

1.0005483

2

0.18365

 

1.0005442

2

0.1844

 

1.0005433

1

0.18455

 

1.0005425

2

0.18475

 

1.0005423

2

0.18507

 

1.0005416

2

© 2003 by CRC Press LLC

Index of Refraction n of Krypton, Kr—continued

λvac(µm )

λair(µm )

n

(273 K)

R e f .

0.19013

 

1.0005326

2

0.19832

 

1.0005197

2

0.19889

 

1.0005191

2

 

0.202551

1.00051493

3,4

0.20588

 

1.0005101

2

0.2062

 

1.0005108

1

0.21248

 

1.0005028

2

0.213923

 

1.0005023

1

 

0.214438

1

00050126

3,4

 

0.219463

1.00049664

3,4

0.22116

 

1.0004950

2

0.22174

 

1.0004946

2

 

0.226502

1.00049089

3,4

0.228872

 

1.0004890

1

 

0.230209

1.00048845

3,5

 

0.232928

1.00048617

3,4

 

0.234555

1.00048542

3,5

 

0.237999

1.00048318

3,5

0.24359

 

1.0004791

2

 

0.244691

1.00047910

3,5

 

0.246407

1.00047815

3,5

0.25073

 

1.0004751

2

0.25151

 

1.0004747

2

0.25169

 

1.0004746

2

0.25200

 

1.0004745

2

0.25249

 

1.0004742

2

0.25293

 

1.0004740

2

 

0.257309

1.00047221

3,4

 

0.257630

1.00047236

3,5

0.26321

 

1.0004691

2

 

0.267499

1.00046804

3,5

 

0.274858

1.00046489

3,4

 

0.275278

1.00046499

3,5

 

0.275971

1.00046471

3,5

 

0.283691

1.00046181

3,4

 

0.285697

1.00046138

3,5

0.28824

 

1.0004601

2

 

0.289360

1.00046017

3,5

 

0.292541

1.00045924

3,5

 

0.298063

1.00045739

3,4

 

0.334148

1.00044933

3,5

© 2003 by CRC Press LLC

Index of Refraction n of Krypton, Kr—continued

λvac(µm )

λair(µm )

n (273 K)

R e f .

 

0.340365

1.00044829

3,4

 

0.380166

1.00044241

3,5

 

0.410807

1.00043909

3,5

 

0.441304

1.00043621

3,4

0.480126

0.479992

1.00043391

3,4

 

0.491604

1.00043333

3,5

0.508724

0.508582

1.00043245

3,4

0.546226

0.546074

1.00043084

3

 

0.567717

1.00043011

3,5

 

0.607262

1.00042885

3,5

 

0.612327

1.00042873

3,5

 

0.623437

1.00042847

3,5

References:

1.Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, Measurement of refractive indexes of He, Ar, Kr, and Xe in the 253.7–140.4 nm wavelength range. Dispersion relation and estimated oscillator strength of the resonance lines, J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

2.Smith, P. L., Parkinson, W. H., and Huber, M. C. E., The refractive index of krypton for 168 nm to 288 nm, Opt. Commun. 14, 374 (1975).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21-37 (1974)..

4.Kronjager, W., Z. Physik 98, 17 (1936).

5.Koch, J., Kungl. Fysiografiska Sällskapets i Lund Förhandlingar 19, 173 (1949).

Dispersion

formula [λ (µ m) in vacuum at T = 273 K]

Range (µm )

n = 1 + 0.012055[0.2104λ2/(65.4742λ2 – 1) + 0.2270λ2/(73.698λ2 – 1)

0.15–0.62

 

+ 5.14975λ2/(181.08λ2 – 1)]

 

 

 

 

 

 

 

 

 

Reference: See reference 1 above.

 

 

 

 

 

Index of Refraction n

of Xenon,

Xe

 

 

λvac(µm )

λair(µm )

n (273

K)

R e f .

0.1483

 

1.005091

 

1

 

0.1495

 

1.003210

 

1

 

0.1525

 

1.0020686

 

1

 

0.1550

 

1.0018107

 

2

 

0.1600

 

1.0014614

 

2

 

0.1641

 

1.0013192

 

1

 

0.1650

 

1.0012978

 

2

 

0.1700

 

1.0011934

 

2

 

0.1702

 

1.0011867

 

1

 

0.1750

 

1.0011213

 

2

 

0.1800

 

1.0010678

 

2

 

0.180731

 

1.0010630

 

1

 

© 2003 by CRC Press LLC

Index of Refraction n of Xenon, Xe—continued

λvac(µm )

λair(µm )

n (273 K)

R e f .

0.184949

 

1.0010302

1

0.1850

 

1.0010226

2

0.1900

 

1.0009917

2

0.194232

 

1.0009713

1

0.1950

 

1.0009635

2

0.2000

 

1.0009398

2

0.2050

 

1.0009194

2

0.2100

 

1.0009018

2

0.213923

 

1.0008941

1

0.2150

 

1.0008862

2

0.2200

 

1.0008725

2

0.2250

 

1.0008603

2

0.228872

 

1.0008584

1

0.2300

 

1.0008494

2

 

0.230209

1.00085519

3,4

 

0.234555

1.00084664

3,4

 

0.237999

1.00084025

3,4

 

0.244691

1.00082907

3,4

 

0.246407

1.00082640

3,4

0.253728

 

1.0008127

1

 

0.257630

1.00081078

3,4

 

0.267499

1.00079923

3,4

 

0.275278

1.00079124

3,4

 

0.275971

1.00079060

3,4

 

0.285697

1.00078186

3,4

 

0.289360

1.00077885

3,4

 

0.292541

1.00077637

3,4

 

0.334148

1.00075143

3,4

 

0.380166

1.00073430

3,4

 

0.410807

1.00072623

3,4

 

0.491604

1.00071241

3,4

0.546226

0.546074

1.00070660

3

 

0.567717

1.00070477

3,4

 

0.607262

1.00070188

3,4

 

0.612327

1.00070157

3,4

 

0.623437

1.00070091

3,4

1.Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, A., J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

2.Chashchina, G. I. and Shreider, E. Ya., Opt. Spektrosk. 27, 161 (1969) English transl.: Opt. Spectrosc. USSR 27, 79-80 (1969).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21-37 (1974).

4.Kronjager, W., Z. Physik 98, 17 (1936).

©2003 by CRC Press LLC

Dispersion formula [λ (µ m) in vacuum at T = 273 K]

Range (µm )

n = 1 + 0.012055[0.26783λ2/(46.301λ2 – 1) + 0.29481λ2/(50.578λ2 – 1)

0.15–0.62

+ 5.0333λ2/(112.74λ2 – 1)]

 

Reference: Bideau-Mehu, A., Guern, R., Abjean, Y., and Johannin-Gilles, A., Measurement of refractive indexes of He, Ar, Kr, and Xe in the 253.7–140.4 nm wavelength range. Dispersion relation and estimated oscillator strength of the resonance lines, J. Quant. Spectrosc. Radiat. Transfer 25, 395 (1981).

Index of Refraction n of Hydrogen, H2

λair(µm )

n (273

K)

λair(µm )

n (273 K)

0.230209

1.0001594

0.334148

1.0001461

0.237832

1.0001577

0.354308

1.0001450

0.244691

1.0001563

0.366328

1.0001443

0.246406

1.0001560

0.390641

1.0001432

0.253652

1.0001547

0.398400

1.0001430

0.257630

1.0001540

0.404656

1.0001427

0.267499

1.0001525

0.407781

1.0001426

0.275278

1.0001515

0.410807

1.0001426

0.275971

1.0001514

0.435835

1.0001418

0.285697

1.0001503

0.486133

1.0001406

0.289360

1.0001499

0.491604

1.0001405

0.292541

1.0001495

0.546074

1.0001397

0.296728

1.0001491

0.579065

1.0001393

0.312567

1.0001477

0.656279

1.0001387

0.313184

1.0001477

0.670784

1.0001385

 

Reference: Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974)

 

Index of

Refraction

n of Deuterium,

D2

λair(µm )

n (273

K)

λair(µm )

n (273 K)

0.230209

1.00015680

0.289357

1.00014756

0.234555

1.00015584

0.292541

1.00014725

0.237999

1.00015510

0.334148

1.00014395

0.244691

1.00015378

0.380166

1.00014160

0.246407

1.00015347

0.410807

1.00014048

0.257630

1.00015158

0.491604

1.00013850

0.267499

1.00015014

0.546074

1.00013766

0.275278

1.00014915

0.576959

1.00013731

0.275971

1.00014906

0.579065

1.00013727

Reference: Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21-37 (1974)

© 2003 by CRC Press LLC

Index of Refraction n of Nitrogen, N2

 

(vacuum

ultraviolet,

ultraviolet,

and visible)

 

λvac(µm )

λair(µm )

 

n (273 K)

Ref.

0.1641

 

1.0003748

1

0.1702

 

1.0003656

1

0.180731

 

1.0003552

2

0.184949

 

1.0003495

2

0.194232

 

1.0003435

2

0.213923

 

1.0003349

2

0.228872

 

1.0003299

2

 

0.237832

1.0003261

3

 

0.244691

1.0003241

3

 

0.246406

1.0003236

3

 

0.253652

1.0003218

3

0.253728

 

1.0003217

2

 

0.257630

1.0003208

3

 

0.267499

1.0003187

3

 

0.275278

1.0003172

3

 

0.275971

1.0003171

3

 

0.285697

1.0003154

3

 

0.289360

1

0003148

3

 

0.292541

1.0003143

3

 

0.296728

1.0003137

3

 

0 334148

1.0003094

3

 

0.354308

1.0003076

3

 

0.390641

1.0003051

3

 

0.398400

1.0003047

3

 

0.407781

1.0003042

3

 

0.410807

1.0003041

3

 

0.491604

1.0003011

3

 

0.546074

1.0002977

3

0.546226

 

l.0002911

4

References:

1.Bideau-Mehu, A., Guern, Y., Abjean, R., and Johannin-Gilles, A., Measurement of refractive indexes of gases in the vacuum ultraviolet and revised values for krypton, Opt. Commun. 16, 186 (1976).

2.Abjean, R., Mehu, A., and Johannin-Gilles, A., Interferometric measurement of the refractive indices of neon and helium in the ultraviolet, Comptes Rendus 271, 411-414 (1970).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21-37 (1974).

4.Peck, E. R. and Hanna, B. N., J. Opt. Soc. Am. 56, 1059-1063 (1966).

© 2003 by CRC Press LLC

Index of Refraction n of Nitrogen, N2

 

(vacuum

ultraviolet,

ultraviolet,

and visible)

 

λvac(µm )

λair(µm )

 

n (273 K)

Ref.

0.1641

 

1.0003748

1

0.1702

 

1.0003656

1

0.180731

 

1.0003552

2

0.184949

 

1.0003495

2

0.194232

 

1.0003435

2

0.213923

 

1.0003349

2

0.228872

 

1.0003299

2

 

0.237832

1.0003261

3

 

0.244691

1.0003241

3

 

0.246406

1.0003236

3

 

0.253652

1.0003218

3

0.253728

 

1.0003217

2

 

0.257630

1.0003208

3

 

0.267499

1.0003187

3

 

0.275278

1.0003172

3

 

0.275971

1.0003171

3

 

0.285697

1.0003154

3

 

0.289360

1

0003148

3

 

0.292541

1.0003143

3

 

0.296728

1.0003137

3

 

0.334148

1.0003094

3

 

0.354308

1.0003076

3

 

0.390641

1.0003051

3

 

0.398400

1.0003047

3

 

0.407781

1.0003042

3

 

0.410807

1.0003041

3

 

0.491604

1.0003011

3

 

0.546074

1.0002977

3

0.546226

 

l.0002911

4

References:

1.Bideau-Mehu, A., Guern, Y., Abjean, R., and Johannin-Gilles, A., Measurement of refractive indexes of gases in the vacuum ultraviolet and revised values for krypton, Opt. Commun. 16, 186 (1976).

2.Abjean, R., Mehu, A., and Johannin-Gilles, A., Interferometric measurement of the refractive indices of neon and helium in the ultraviolet, Comptes Rendus 271, 411 (1970).

3.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974).

4.Peck, E. R. and Hanna, B. N., J. Opt. Soc. Am. 56, 1059 (1966).

© 2003 by CRC Press LLC

 

Index of Refraction n of Nitrogen, N2

 

 

 

 

(visible and

near infrared)

 

 

 

λvac(µm )

n (288 K)

 

λvac(µm )

n (288

K)

0.467947

1.00028543

0.978719

1.00028000

 

0.480126

1.00028507

1.014257

1.00027989

 

0.508724

1.00028433

1.129050

1.00027961

 

0.546226

1.00028352

1.350788

1.00027926

 

0.703435

1.00028149

1.372233

1.00027923

 

0.724716

1.00028130

1.475650

1.00027912

 

0.826679

1.00028063

1.529354

1.00027907

 

0.912547

1.00028023

1.694521

1.00027896

 

0.922703

1.00028019

2.058691

1.00027879

 

0.966043

1.00028004

 

 

 

 

 

 

 

 

 

 

Reference: Peck, E. R. and Hanna, B. N., J. Opt. Soc. Am. 56, 1059 (1966).

 

 

 

Temperature variation of index of refraction at 293 K:

 

 

 

dn/dT (K–1) = -0.953 × 10–6 at 546.1 nm

 

 

 

 

 

dn/dT (K–1) = -0.949 × 10–6 at 632.8 nm

 

 

 

 

 

 

 

 

 

 

 

Dispersion

formula [λ (µ m) in vacuum at T = 273 K]

Range

(_m)

 

n = 1 + [68.5520 + 32431.57λ2/144λ2 – 1)]x10–6

0.47–2.06

 

 

 

 

 

Reference: Peck, E. R. and Hanna, B. N., J. Opt. Soc. Am. 56, 1059 (1966).

 

 

 

Index of Refraction n of Oxygen, O2

 

 

 

λair(µm)

n (273 K)

 

 

 

 

 

0.275278

1.0003242

 

 

 

 

 

0.289360

1.0002936

 

 

 

 

 

0.302150

1.0002912

 

 

 

 

 

0.318770

1.0002879

 

 

 

 

 

0.388865

1.0002797

 

 

 

 

 

0.447148

1.0002763

 

 

 

 

 

0.471250

1.0002751

 

 

 

 

 

0.501568

1.0002740

 

 

 

 

 

0.587562

1.0002718

 

 

 

 

 

0.667815

1.0002708

 

 

 

 

 

Reference: Abjean, R., Mehu, A., and Johannin-

Gilles, A., Comptes Rendus 271, 411 (1970).

Temperature variation of the index of refraction of oxygen at 293 K: dn/dT (K–1) = -0.864 × 10–6 at 546.1 nm

dn/dT (K–1) = -0.858 × 10–-6 at 632.8 nm

© 2003 by CRC Press LLC

Index of Refraction n of Carbon Dioxide, CO2

λvac(µm )

n

(273 K)

R e f .

λvac(µm )

n (273 K)

R e f .

0.180731

1.0005513

1

0.410925

1.0004582

2

0.184949

1.0005441

1

0.480126

1.0004534

3

0.194232

1.0005333

1

0.491720

1.0004529

2

0.206230

1.0005207

1

0.508724

1.0004520

3

0.213923

1.0005142

1

0.546223

1.0004505

2

0.228872

1.0005034

1

0.724716

1.0004461

3

0.237910

1.0004973

2

0.744095

1.0004458

3

0.244764

1.0004937

2

0.826679

1.0004446

3

0.246482

1.0004929

2

0.877716

1.0004440

3

0.253728

1.0004895

1

0.893115

1.0004439

3

0.257708

1

0004878

2

0.912547

1.0004437

3

0.267577

1.0004840

2

0.922703

1.0004436

3

0.276058

1.0004811

2

0.966043

1.0004431

3

0.285780

1.0004781

2

1.014257

1.0004427

3

0.296813

1.0004752

2

1.296021

1.0004405

3

0.334242

1.0004674

2

1.372232

1.0004399

3

0.354469

1.0004644

2

1.475650

1.0004392

3

0.368104

1.0004625

2

1.529354

1.0004387

3

0.398507

1.0004593

2

1.694521

1.0004374

3

References:

1.Bideau-Mehu, A., Guern, Y., Abjean, R., and Johannin-Gilles, A., Interferometric determination of the refractive index of CO2 in the ultraviolet region, Opt. Commun. 9, 432 (1973).

2.Leonard, P. J., Atomic Data and Nuclear Data Tables 14, 21 (1974).

3.Old, J. G., Gentili, K. L., and Peck, E. R., Dispersion of carbon dioxide, J. Opt. Soc. Am. 61, 89 (1971).

Temperature variation of the index of refraction of carbon dioxide at 293 K:

dn/dT (K–1) = 1.432 × 10–6 at 546.1 nm dn/dT (K–1) = 1.424 × 10–6 at 632.8 nm

Dispersion formula [λ (µ m) in vacuum at T = 273 K]

 

Range (µm )

n = 1 + 0.012055[0.579925λ /(166.175λ – 1) + 0.12005λ (79.609λ

– 1)

0.18–1.7

+0.0053334λ2/(56.3064λ2 – 1) + 0.0043244λ2/(46.0196λ2 – 1)

+0.0001218145λ2/(0.0584738λ2 – 1)]

Reference: Bideau-Mehu, A., Guern, Y., Abjean, R., and Johannin-Gilles, A., Interferometric determination of the refractive index of CO2 in the ultraviolet region, Opt. Commun. 9, 432 (1973).

© 2003 by CRC Press LLC

Index of Refraction n of Methane, CH4

λair(µm )

n (273 K)

Reference

0.5290

1.0004478

1

0.5718

1.0004454

1

0.5893

1.000444

2

0.5935

1.0004435

1

0.6375

1.0004411

1

0.6585

1.0004404

1

References:

1.International Critical Tables of Numerical Data, Physics and Chemistry and Technology, Vol. VII, Washburn, E. W., Ed., (McGraw-Hill, New York, 1930).

2.Kaye, G. W., and Laby, T. H., Tables of Physical and Chemical Constants (Longman Group, London, 1986).

Index of Refraction n of Ammonia, NH3

λair(µm )

n (273 K)

Reference

0.47999

1.0003830

1

0.50858

1.0003808

1

0.52091

1.0003800

1

0.54607

1.0003786

1

0.57695

1.0003771

1

0.57905

1.0003770

1

0.5893

1.000376

2

0.64385

1.0003746

1

0.67078

1.0003738

1

References:

1.International Critical Tables of Numerical Data, Physics and Chemistry and Technology, Vol. VII, Washburn, E. W., Ed., (McGraw-Hill, New York, 1930).

2.Kaye, G. W., and Laby, T. H., Tables of Physical and Chemical Constants (Longman Group, London, 1986).

© 2003 by CRC Press LLC

Index of Refraction n of Air

 

 

λvac–λair

 

 

λvac–λair

λair (µm )

n (288 K)

(µm )

λair (µm )

n (288 K)

(µm )

0.200

1.0003256

0.0000651

0.560

1.0002769

0.0001551

0.210

1.0003188

0.0000670

0.570

1.0002768

0.0001578

0.220

1.0003132

0.0000689

0.580

1.0002766

0.0001604

0.230

1.0003086

0.0000710

0.590

1.0002765

0.0001631

0.240

1.0003047

0.0000731

0.600

1.0002763

0.0001658

0.250

1.0003014

0.0000754

0.610

1.0002762

0.0001685

0.260

1.0002986

0.0000776

0.620

1.0002761

0.0001712

0.270

1.0002962

0.0000800

0.630

1.0002760

0.0001739

0.280

1.0002941

0.0000824

0.640

1.0002759

0.0001766

0.290

1.0002923

0.0000848

0.650

1.0002758

0.0001792

0.300

1.0002907

0.0000872

0.660

1.0002757

0.0001819

0.310

1.0002893

0.0000897

0.670

1.0002756

0.0001846

0.320

1.0002880

0.0000922

0.680

1.0002755

0.0001873

0.330

1.0002869

0.0000947

0.690

1.0002754

0.0001900

0.340

1.0002859

0.0000972

0.700

1.0002753

0.0001927

0.350

1.0002850

0.0000998

0.710

1.0002752

0.0001954

0.360

1.0002842

0.0001023

0.720

1.0002751

0.0001981

0.370

1.0002835

0.0001049

0.730

1.0002751

0.0002008

0.380

1.0002829

0.0001075

0.740

1.0002750

0.0002035

0.390

1.0002823

0.0001101

0.750

1.0002749

0.0002062

0.400

1.0002817

0.0001127

0.760

1.0002749

0.0002089

0.410

1.0002812

0.0001153

0.770

1.0002748

0.0002116

0.420

1.0002808

0.0001179

0.780

1.0002748

0.0002143

0.430

1.0002803

0.0001205

0.790

1.0002747

0.0002170

0.440

1.0002799

0.0001232

0.800

1.0002746

0.0002197

0.450

1.0002796

0.0001258

0.810

1.0002746

0.0002224

0.460

1.0002792

0.0001284

0.825

1.0002745

0.0002265

0.470

1.0002789

0.0001311

0.850

1.0002744

0.0002332

0.480

1.0002786

0.0001338

0.875

1.0002743

0.0002400

0.490

1.0002784

0.0001364

0.900

1.0002742

0.0002468

0.500

1.0002781

0.0001391

0.925

1.0002741

0.0002536

0.510

1.0002779

0.0001417

0.950

1.0002740

00002604

0.520

1.0002777

0.0001444

0.975

1.0002740

0.0002671

0.530

1.0002775

0.0001471

1.000

1.0002739

0.0002739

0.540

1.0002773

0.0001497

1.050

1.0002738

0.0002875

0.550

1.0002771

0.0001524

1.100

1.0002737

0.0003011

Reference:

CRC Handbook of Chemistry and Physics, 75th edition, Lide, D. R., Ed. (CRC Press, Boca Raton, FL, 1994).

© 2003 by CRC Press LLC

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