. The Bell System technical journal . Fig. —-Light polarization in the plane of p and z, is the direction of slow vibration while / which isperpendicular to this plane is the direction of fast vibration. The vibra-tion frequency is really the same for both. Slow vibration means vi-bration direction for slow transmission. All directions of propagationthat have this vibration axis have the same velocity. In Fig. we have placed this plate between crossed polaroids—thatis polaroids set for extinction. The slow direction makes an angle a withthe polarizer vibration axis. When this vertical


. The Bell System technical journal . Fig. —-Light polarization in the plane of p and z, is the direction of slow vibration while / which isperpendicular to this plane is the direction of fast vibration. The vibra-tion frequency is really the same for both. Slow vibration means vi-bration direction for slow transmission. All directions of propagationthat have this vibration axis have the same velocity. In Fig. we have placed this plate between crossed polaroids—thatis polaroids set for extinction. The slow direction makes an angle a withthe polarizer vibration axis. When this vertical-polarized ray of intensity/ enters the crystal it breaks up into components, one of intensity: and one of intensity / cos a vibrates along s I sin a vibrates along/ () () as illustrated in Fig. SPECIFVIXG QUARTZ CRYSTAL ORIENTATION 241. Fig. —Light breaks into components in the crystal


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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1