We present the first demonstration of the 2-dimensional fabrication of surface reliefs with spiral two-, four-, and six-arms, named "galaxy-shaped surface relief," in an azo-polymer film by employing petal-like modes formed of the superposition of positive and negative Laguerre-Gaussian modes. This demonstration provides new physical insights into the interaction of light and matter to develop rewritable optical data storage with ultrahigh data capacity.
We propose a new approach for light induced chiral surface reliefs, in which multiple-armed chiral surface reliefs are formed in an azo-polymer film by the irradiation of the temporally rotating petal beams without Orbital Angular Momentum (OAM). This approach offers new fundamental physical insight of light matter interaction, and it might open the door towards advanced ultrahigh density rewritable optical data storages.
Orbital angular momentum (OAM) of optical vortex can twist azo-polymers to form a micron-scale chiral surface relief, reflecting the helical wavefront of the irradiated optical vortex beam, with the aid of spin angular momentum (SAM). In this work, we present a new approach for light induced chiral surface relief formation, in which chiral surface reliefs of azopolymers with multiple arms are formed by the irradiation of temporally rotating petal beams without OAM, but assisted by the SAM associated with circular polarization. Also, we demonstrate the orientation control of the fabricated multiple-armed chiral surface reliefs in azo-polymers by properly controlling the exposure time.
We demonstrate the formation of spiral surface relief of azo-polymers by irradiation of a rotating Hermite-Gaussian beam
with zero orbital angular momentum. This approach offers new fundamental physical insight of light matter interaction,
and it paves the way towards advanced ultrahigh density optical data storages.
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.