Liquid crystals metalens (LC-ML) has attracted much attention due to its powerful functions in shaping light field with planar structure and its great application potentials. However, LC-MLs usually suffer from large chromatic aberration resulting from high phase dispersion. Here, we propose and demonstrate achromatic imaging at red-green-blue (RGB) wavelengths 450 nm, 526 nm, and 630 nm with optimized wavelength multiplexed phase coding in a single liquid crystals metalens. The optimized wavelength multiplexed phase coding, which works on three operating wavelengths simultaneously, is introduced via the complex field of summation of the individual optical fields at selected RGB wavelength and can be achieved via photo-patterning an azo-dye doped LC. The optical efficiency of the fabricated achromatic liquid crystals metalens can be optimized by applying appropriate voltages. The proposed achromatic LC-ML at multi-wavelengths is easy to fabricate and has a potential application in the display field.
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.