2011/10/14 by San-Yi Huang, San‐Yi Huang, Tung-Chen Tung +5 · 1 citation
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Birefringence #Chemistry #Lens (geology) #Light intensity #Liquid Crystal Research Advancements #Liquid crystal #Materials science #Microlens #Optics #Optoelectronics #Photoisomerization #Photonic Crystals and Applications #Photonic and Optical Devices #Physics #Polarization (electrochemistry) #Ray #Refractive index
paper · doi:10.1364/ao.50.005883
openalex publication_date 2011/10/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
The current work demonstrates a liquid crystalline polymer microlens array (LCP MLA) with an all-optically tunable and multistable focal intensity through photochemical phase transition. The operational mechanism of the optical tuning is associated with the photoisomerization effect. The proposed LCP MLA device has a focusing unit based on a birefringence LCP and a tuning unit with a light responsive material to control the polarization state of the incident probe beam. The optically variable refractive indices of LCP enable a positive or negative MLA that can control the polarization of incident light to be realized.