A light control layer includes an ionizing radiation-curable resin layer having voids and a liquid crystal composition filled in the voids. An acrylic compound having 3 or more functional groups and a double bond equivalent weight of 150 g/eq or less is a first acrylic compound. A monofunctional alkyl acrylate containing a saturated alkyl group is a second acrylic compound. An acrylic compound having 1 to 3 functional groups and a polyethylene oxide chain and a double bond equivalent weight of 300 g/eq to 700 g/eq is a third acrylic compound is a third acrylic compound. A content of the first acrylic compound is 5 mass % to 40 mass %. A content of the second acrylic compound is 55 mass % to 80 mass %. A content of the third acrylic compound is 5 mass % to 20 mass %.

The optical device includes: a first coupler having an adjustable beam splitting ratio; a sensing arm and a programmable modulation arm which are connected to the first coupler; and a second coupler having an input port connected to the sensing arm and the programmable modulation arm and an output port connected to a photodetector. The sensing arm is used for generating, by means of a slot waveguide, a first signal from a first light wave beam outputted by the first coupler. The programmable modulation arm is used for obtaining, by utilizing a grating, a second signal according to a second light wave beam outputted by the first coupler, and the grating is a nano grating generated under a pre-programmed voltage parameter of a programmable piezoelectric transducer of the programmable modulation arm. An electronic device and a programmable photonic integrated circuit are also disclosed herein.

The present disclosure relates to an electro-opto-acoustic composition and an electro-opto-acoustic device, wherein, by adding a non-ionic surfactant, it is possible to improve a dielectric constant while simultaneously improving electroluminescence performance, and the electro-opto-acoustic composition according to an embodiment of the present disclosure includes a stretchable silicone rubber, a non-ionic surfactant, and copper-doped zinc sulfide (ZnS:Cu).