Dynamic and versatile controllability of chiral nematic photonic devices with sunlight-activatable chiral molecular motors

Ching-Han Yang; Pei-Ru Song; Chia-Rong Lee

doi:10.1117/12.3017878

18 June 2024 Dynamic and versatile controllability of chiral nematic photonic devices with sunlight-activatable chiral molecular motors

Ching-Han Yang, Pei-Ru Song, Chia-Rong Lee

Author Affiliations +

Proceedings Volume PC13016, Liquid Crystals Optics and Photonic Devices; PC130160L (2024) https://doi.org/10.1117/12.3017878
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Multidimensional manipulation of light properties such as wavelength, polarization, spin and orbital angular momenta plays an important role in expanding the information capacity of photon-based communications. Among recently proposed ideas, stimulus-responsive self-organizing helical superstructures offer a promising avenue for development of future chiro-optics-based photonic devices. This study explores a photolithographic-like photoalignment system to fabricate spatially-micropatterned cholesteric liquid crystals (CLCs) formed by chiral molecular motors (CMM). The geometric phase provides an integrated strategy for laser beam shaping. Several specific chiro-optical elements with different geometric phase patterns. Additionally, by finely controlling the dynamic balance between the concentrations of CMM molecules with opposite handedness in the CLC devices with different optical functions, the spectral position and handedness of the photonic bandgap can be continuously, bidirectionally, and reversibly tuned in the ultra-broadband spectral region. This work demonstrates a promising approach to replace conventional photonic devices that are bulky and only serve static functions.

Conference Presentation

Citation Download Citation

Ching-Han Yang, Pei-Ru Song, and Chia-Rong Lee "Dynamic and versatile controllability of chiral nematic photonic devices with sunlight-activatable chiral molecular motors", Proc. SPIE PC13016, Liquid Crystals Optics and Photonic Devices, PC130160L (18 June 2024); https://doi.org/10.1117/12.3017878

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available