Tunable and light-emitting metasurfaces have attracted increasing research interest in recent years. Here by combining liquid-crystal-integrated metasurfaces with a fluorescent substrate, we demonstrate active tuning of the emission spectrum and pattern in the red wavelength range. The measurements are performed with the techniques of momentum-space resolved spectroscopy and back-focal-plane imaging, showing a maximum of 16 nm shift of the emission wavelengths from 677 nm to 693 nm, and significant changes in the emission pattern at 660 nm. The results are further verified with numerical simulations. Our work paves the way towards actively controllable metasurface-based sources of complex light fields.
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.