Humidity- and Temperature-Tunable Metal–Hydrogel–Metal Reflective Filters
Semen Chervinskii, Ibrahim Issah, Markus Lahikainen, Alireza R. Rashed, Kim Kuntze, Arri Priimägi, Hümeyra Çağlayan
Abstract
-isopropylacrylamide)-acrylamidobenzophenone (PNIPAm-BP) hydrogel as an insulator layer in the metal-insulator-metal (MIM) assembly. The optical resonance of the structure is tunable by water immersion across the visible and near-infrared range. Swelling/deswelling and the volume phase transition of the hydrogel allow continuous reversible humidity- and/or temperature-induced tuning of the optical resonance. This work paves the way toward low-cost large-area fabrication of actively tunable reversible photonic devices.
Topics & Concepts
Materials scienceHumidityFabricationMetalOptical filterMetal-insulator-metalOptoelectronicsInsulator (electricity)InfraredOpticsVoltageQuantum mechanicsMetallurgyPathologyCapacitorThermodynamicsMedicineAlternative medicinePhysicsAdvanced Materials and MechanicsAdvanced Fiber Optic SensorsAdvanced Sensor and Energy Harvesting Materials