Imprint Silicon single_layer ShenYang Ucl multi_layer NUS_Physics temperature_control Hexacontane ThinFilm LightEmiting UnivCollegeLondon Steps PyroelectricDetector Biofilm Magnetic Inorganic_Compound OxideLayer Phosphide Polyimide Polymer KPFM Galfenol Ceramics DiffractiveOpticalElements CrossSection STM Fiber molecular_beam silicon_oxide MESA structure nanobar optoelectronics Chemical Vapor Deposition Hafnium_dioxide