To determine the degree of polarization in the case of a ray of common light falling obliquely on and being reflected or refracted by a bundle of parallel plates / by W.G. Adams.

  • Adams, W. Grylls (William Grylls), 1836-1915.
Date:
[1871?]
Catalogue details

Licence: Public Domain Mark

Credit: To determine the degree of polarization in the case of a ray of common light falling obliquely on and being reflected or refracted by a bundle of parallel plates / by W.G. Adams. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

    12/14 (page 10)
    U) Polarization of Light ohliquely incident onparaltel Plates. 1—\-v^ P_ ^ I + ~ 1 + (2?»— n+p i —w~ ^ 1 — I +1 + _ 2m\v^—w^) { 1 -f (2m —!)>} (1 — w®) + (1 —u®) {1 + (27?( — 1 _ 2m sin‘‘‘ (c^ — cf)^) i + {2in— l)v^ 4- cos'* (0— <^i) { 1 + {2nt — 1 )iv-] _ msin*(0 — 1 + (2?7i — 1 )t;* — m sin® Of mtan® —0j) 1 + {2m — 1)?«® + m tan® (0 — (/>j) I’liese expressions may conveniently be put in the form p m n+p 1 (2m—]) ’ sin® (</>-(^j) sin® (c/) + ^,) or + 2m — 1 ■m ?i. _ sin®(0 — (j)j) sin® {(f) + (f^^) p ~ m For a given value of m (as, for instance, when there are four plates) this expression for the degree of polarization may be P readily calculated; and, as we have seen, expresses the proportion of polarized light in the incident beam when the light is completely depolarized by the plates.