Fiber-optic probe can see molecular bonds: Pointing the new nanoscopy tool like a Harry Potter wand reveals a high-resolution image of molecules

Engineers have developed the world's first portable, inexpensive, optical nanoscopy tool that integrates a glass optical fiber with a silver nanowire condenser. The device is a high-efficiency round-trip light tunnel that squeezes visible light to the very tip of the condenser to interact with molecules locally and send back information that can decipher and visualize the elusive nanoworld.