In this work we describe a new dual-channel scanning probe microscope performing simultaneously Scanning Tunneling Microscopy (STM) and wide-band Near Field Scanning Microwave Microscopy (wide-band SMM). Our SMM system exploits the STM feedback to keep a suitable distance between probe and sample. The system is new because our SMM performs broadband measurements of the reflection coefficient across the STM probe by means of an external VNA with no resonant circuit. A post-processing algorithm reduces the noise by comparing images recorded at different close frequencies.
Dual-Channel Microwave Scanning Probe Microscopy for Nanotechnology and Molecular Biology / Fabiani, Silvia; Lucesoli, Agnese; DI DONATO, Andrea; Mencarelli, Davide; Venanzoni, Giuseppe; Morini, Antonio; Rozzi, Tullio; Farina, Marco. - (2010), pp. 767-770. (Intervento presentato al convegno European Microwave Conference (European Microwave Week) tenutosi a Paris nel 28-30 October 2010).
Dual-Channel Microwave Scanning Probe Microscopy for Nanotechnology and Molecular Biology
FABIANI, SILVIA;LUCESOLI, AGNESE;DI DONATO, Andrea;MENCARELLI, Davide;VENANZONI, Giuseppe;MORINI, ANTONIO;ROZZI, TULLIO;FARINA, Marco
2010-01-01
Abstract
In this work we describe a new dual-channel scanning probe microscope performing simultaneously Scanning Tunneling Microscopy (STM) and wide-band Near Field Scanning Microwave Microscopy (wide-band SMM). Our SMM system exploits the STM feedback to keep a suitable distance between probe and sample. The system is new because our SMM performs broadband measurements of the reflection coefficient across the STM probe by means of an external VNA with no resonant circuit. A post-processing algorithm reduces the noise by comparing images recorded at different close frequencies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
