Abstract

This paper briefly describes a method of fabricating polymeric optical elements with a new property: an axial birefringence gradient (BRG), and presents the results of an experimental study of their optical polarization properties. The BRG elements were fabricated from thin films of polyvinyl alcohol (PVA, d=100−150 µm) and polyethylene terephthalate (PET, d=190 µm). It is shown that the birefringence gradient Delta n in the middle of the BRG element increases exponentially along the central z axis, with Delta nmaxapproximately0.02. Increasing the forming temperature of the BRG element from 80 to 90 °C improves the linearity of the Delta n=f(z) dependence, even though it is degraded and becomes irregular in the peripheral zone.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription