Fig. 4: Various nanoimprint lithography (NIL) approaches for achieving hydrogel-based photonic devices. | Microsystems & Nanoengineering

Fig. 4: Various nanoimprint lithography (NIL) approaches for achieving hydrogel-based photonic devices.

From: Hydrogels for active photonics

Fig. 4: Various nanoimprint lithography (NIL) approaches for achieving hydrogel-based photonic devices.

a Metal-hydrogel-metal (MHM)-based reflective multilevel nanopixels116. b Hydrogel metasurfaces for a multiplexed optical encryption system115. c Ultrafast producible hydrogel nanograting for humidity sensing117. Reproduced with permission from Wiley (2023), Nature Publishing Group (2022), and Wiley (2022)

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