Miniature Lenses, Systems and Methods of Making the same

Patent Status: 

Patent Granted

Grant: 

US8587881 B2

US Patent No: 

13/176,565

US Patent No Date: 

05.07.2011

Date Granted: 

29.10.2013

Patent Category: 

Overview: 

In this invention, we demonstrate a versatile method of fabricating tunable sub-micrometer size spherical lenses and lens arrays by dewetting ultrathin (< 100 nm) polymer films at room temperature.

Key Features: 

  • The lens-size is continuously tunable from 100 nm to few tens of micrometers with spherical shapes of contact angles ranging from 30 - 150°.
  • The technique proposed here induces a room temperature dewetting of polymer thin films under an optimal mix of water, acetone and methyl-ethyl ketone (MEK).
  • This technique can be extended to several thermoplastic polymers such as polystyrene,polyacrylates, polymethacrylates, poly(vinyl ethers), polybutadiene (not cross-linked) etc. to cover whole range of desired optical properties.

Applications: 

  • Nano-imaging and Bioimaging in diagnostics and biosensing.
  • Optical nanolithography, especially at sub-wavelength scale.
  • Quantum computing, quantum communication and optical networking.

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