Author/Authors :
J. Boneberg، نويسنده , , J. and Ochmann، نويسنده , , M. and Munzer، نويسنده , , H.-J. and Leiderer، نويسنده , , P.، نويسنده ,
Abstract :
A new optical setup for plasmon near-field optical microscopes is introduced which allows to improve the signal/background ratio independently of the wavelength used and therefore makes the spectroscopy feasible. Calculated and experimental examples demonstrate this improvement obtained by addition of ellipsometric components. Furthermore, a first measurement in combination with a scanning tunnelling microscope shows that it is possible to extrude phase information from this setup as well.