Dammann grating designed by using the scalar diffractive theory is a conventional uniform-intensity splitter with binaryphase,
whose diffraction efficiency is no more than 87% generally and representative value is about percent 80. This will
limit its further progress. Based on the rigorous couple-wave analysis theory and the genetic algorithm, a method has
been proposed to design a new uniform-intensity splitter with binary-phase subwavelength structure, which has higher
diffraction efficiency. Then five new-type beam splitters with binary-phase, whose splitting ratios are 3, 4, 5, 6 and 7, are
obtained by the emulating package. Their diffraction efficiency is more than 92%, and it is very bigger than the
conventional Dammann grating. Owing to its subwavelength structure, the size of this kind of splitter is smaller. It will
be widely applied in some domains, such as ultra-precision manufacturing, micro-opto-electro-mechanical system,
information processing, optical fiber communication, biomedicine, national defense, military affairs and entertainment,
etc.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.