Raman Key Features

Effortless AFM and Raman integration 

The design results in a natural and straightforward Raman path for integration without the need for tilting or bending the Raman path to accomodate the scanning probe microscope. Both reflection Raman and transmission Raman are standard with unhindered access to the sample and probe from both above and below.  Additionally, advanced SPM modes including MFM and EFM are available; these measurements can be done on their own or in conjunction with simultaneous Raman imaging.

Optically transparent probes for best Raman quality

Nanonics is the pioneering manufacturer of bent glass, optically transparent probes with no obstruction

of the optical axis and the sample surface, which are provided exclusively to Nanonics customers.

Designed for TERS operation

Quick and easy TERS hotspot detection.

Combined tip and sample scanning stage provides accurate positioning of the probe at the ideal location with respect to the focused laser spot.  Tip can be positioned within the center of the Raman hotspot for optical Raman signal detection.

Sample can be scanned without losing the Raman hotspot position.

    All modes of TERS including STM and AFM-TERS with easy interchangeability. Thus the same probe (either conducting or with a conductive coating for STM-based feedback) can be operated as an AFM probe using tuning fork based feedback, and then it can be switched to tunneling based feedback for TERS operation.

   TERS on non-conducting surfaces.

   3 point TERS measurementsfor comparing the difference between enhanced and non-enhanced spectra and extracting new information.


Tuning fork feedback without Raman laser interference 

Laser-free feedback method called normal force tuning fork feedback is provided on the MV2000 and MV 4000. For example, many SPM laser-based feedback systems employ red lasers, which would then interfere with the Raman emission in the red from the sample.

Autofocus for superior Raman resolution 

Our systems provides autofocusing onto the sample at every pixel point. Thus for rough samples, tilted samples, or samples with unusual Z variation, these systems provides the best Raman resolution as it makes sure to have the sample in focus at every point a Raman spectrum is collected.

Ideal for biological applications

The MV 2000 and MV 4000 combine the ability to scan large z ranges (upto 170um), suitable for Raman imaging of most biological species.  In addition, they can image biological species in situ in aqueous environments with the ability to work with a water immersion objective.  In addition, the tuning fork feedback provides the ultimate force sensitivity to conduct AFM-based measurements on soft samples.


Best TERS probes on the  market (exclusively for Nanonics users)

Including: transparent TERS probes with gold ball grown inside the glass, STM and non-STM TERS probes, and gold-coated AFM probes.  Nanonics glass probes are supplied bent at 60 degree angle, the ideal angle for TERS excitation.

Multiprobe MV 4000 Raman application - graphene bridge

A dual probe MV4000 system integrated with a Raman spectromer studied the electrical and chemical properties of a graphene bridge that was connected between electrical pads.  Two cantilever electrical probes (Nanonics) were brought down to the electrical pads. The variable electrical voltage was applied to the substrate and the current between the electrical probes through the graphene was measured. The Raman signal was collected from the graphene simultaneously with the electrical measurements.

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