Measuring local optical properties: near-field polarimetry of photonic block copolymer morphology. Academic Article uri icon

abstract

  • Ultrahigh molecular weight polystyrene-b-polyisoprene block copolymers (BCs), noted for their photonic behavior, were imaged using transmission near-field scanning optical microscopy (NSOM) and NSOM polarimetry. Our improved scheme for polarization modulation (PM) polarimetry, which accounts for optical anisotropies of the NSOM aperture probe, enables mapping of the local diattenuation and birefringence (with separately aligned diattenuating and fast axes) in these specimens with subdiffraction limited resolution. PM-NSOM micrographs illuminate the mesoscopic optical nature of these BC specimens by resolving individual microphase domains and defect structures.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Fasolka, M. J., Goldner, L. S., Hwang, J., Urbas, A. M., DeRege, P., Swager, T., & Thomas, E. L.

citation count

  • 27

complete list of authors

  • Fasolka, MJ||Goldner, Lori S||Hwang, J||Urbas, AM||DeRege, P||Swager, T||Thomas, EL

publication date

  • January 2003