Stony Brook University Vibrational Spectroscopy Laboratory

Orthoclase

Dispersion Parameters (a/c plane)

ν (cm-1) γ S φ
416 34.8 114579 -41.8
563 9.3 35232 39.2
570 11.6 73787 42.4
579 24.6 42224 43.3
638 17.9 28667 145.0
719 27.3 20263 -51.0
765 42.0 15483 5.9
992 24.2 150428 103.3
1010 22.3 172752 176.0
1027 30.7 141913 4.6
1038 33.1 363554 96.9
1109 31.1 212227 24.4
1128 31.3 54556 144.4

Dispersion Parameters (b plane)

ν (cm-1) γ S
543 16.9 31706
611 17.5 11599
726 25.5 18425
752 23.5 15824
774 22.3 15639
992 32.1 387229
1021 42.7 259003
1103 42.6 32799
1135 39.8 148547

εxx=2.0658     εxy=0.0043     εyy=2.0126     εzz=2.4461

Measured Spectra and Principal Refractive Indices