The Nanoscale World

August 2012, Vol. 2 - IRIS

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Bruker Posted: Fri, Aug 3 2012 1:43 PM    |     +1 805 967-1400
Vol. 2 August 2012

The Best AFM Systems for TERS

As research advances, so must the tools and technology integration that enable it. In fact, most of the recent advances in research are coming from the effective combination of multiple advanced techniques. Bruker has recently introduced significant advancements in the area of AFM-Raman and provides a variety of AFM-Raman configurations that meet the most stringent requirements. Our IRIS systems allow researchers to benefit from the combination of AFM and spectroscopy without sacrifice.

Several Configurations, Range of Applications

Bruker's IRIS systems enable the seamless blend of AFM and Raman spectroscopy by combining chemical or crystallographic information (Raman spectroscopy) at high spatial and spectral resolution, with the most advanced nanoscale mechanical, electrical, and thermal AFM characterization. By partnering with leading Raman companies and supporting several configurations we deliver a breadth of solutions for applications ranging from transparent to opaque, covering those requiring transmission geometrics (Bioscope Catalyst-IRIS) or reflection geometrics (Innova-IRIS).

IRIS systems are based on both Bruker's Innova and Bioscope Catalyst™ microscopes, which have a long and proven record for the highest performance, lowest noise and best force control in their classes. These systems display the lowest noise and drift, guaranteeing that the tip and the optical alignment are preserved even over the optical integration times necessary to interrogate weak Raman scatterers.

TappingMode phase image and colocated Raman spectroscopy of graphene. The AFM image locates graphene flakes and shows nanoscale detail. The correlated Raman data identifies the graphene layer structure through its spectroscopic signature.

TERS spectra of Malachite Green obtained using a gold tip illuminated by 633nm light at varying distances above the surface. Data acquired using the IRIS Innova-InVia combination. By comparing the peak intensities with the tip approached to the retracted spectra, one can clearly see the enhancement of Raman modes.

Leading Partnerships for Unsurpassed AFM-Raman Solutions

You will be surprised how easy the IRIS systems make it to perform the most sensitive, high-resolution AFM-Raman studies. And your TERS research will benefit from the direct partnership between Bruker and the leading Raman companies. For the tailored AFM-Raman solution that is best for your application contact Bruker at

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