Near-field microscopy of scattering type - known to resolve <30 nm in the mid IR - is shown to map polymer blend films and biological objects by their specific vibration bands covered by step-tuning a CO laser from 5 to 7 /spl mu/m. The observed infrared-spectroscopic contrast is surprisingly robust even for very thin <20 nm samples and allows material identification at the nanometer scale.


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    Title :

    Infrared near-field spectroscopic microscopy of polymers and proteins


    Contributors:
    Brehm, M. (author) / Taubner, T. (author) / Keilmann, F. (author)


    Publication date :

    2004-01-01


    Size :

    162706 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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