Multiprobe SPM Based Apertureless Optics

multiprobeApt6In standard approaches to Apertureless NSOM (ANSOM), the probe functions as a modulated scatter with gross far-field optical illumination using elements such as lenses or mirror, which cause large spot sizes of radiation around the scattering probe. Far-field optical elements create the radiation background. This background can interfere with the desired signal from the nanometric tip of an atomic force sensor capturing the near-field surface component in a large far-field radiation background.

The Multiprobe Apertureless NSOM enables the reduction of both the optical and mechanical background and thus increases the overall S/N in NSOM experiments. With a multiprobe system, one probe can be used as a limited illumination spot onto a second scattering probe, as shown in the picture to the right. This reduces the optical background and generates the correct k vectors to excite the scattering probe.




Want to learn more about integrating IR and Raman,and scattering and apertureless NSOM?


Which product meets your needs?


Find the Scanning Probe Microscope that's right for you.


Explore the possibilities - today!



Let's set up a time to speak briefly about your unique SPM needs.

Thanks for visiting!


Just before you go...


Would you like to take a quick look at how you can improve your SPM results?