Optical Performance of Organic Distributed Feedback Lasers Based on Holographic Polymer Dispersed Liquid Crystals

Advancements and Applications of Liquid Crystal/Polymer Composite Films

“…HPDLC grating has been widely studied and applied in fiber-optical switches and other fields due to its remarkable optical control characteristics. 23,24 Nematic LCs (NLCs) such as cyanobiphenyls are the most common type of LCs employed in PDLCs, while other LC materials including smectic LCs, cholesteric LCs, and discotic LCs are utilized under certain conditions to obtain obvious optical properties. Taking a polymer-dispersed cholesteric liquid crystal (PDCLC) film as an example, 12 without an electric field, the PDCLC film scatters light (Figure 2c), but by the application of an electric field, the film becomes transparent (Figure 2d).…”

“…Reflective HPDLC gratings can be switched between selective reflection and transmission modes. HPDLC grating has been widely studied and applied in fiber-optical switches and other fields due to its remarkable optical control characteristics. , …”