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The Nano-I™ Atomic Force Microscope

 

Nano-I™ Software

The Nano-I™ has two primary software modules that are provided with the system: a module for acquiring images and a module for displaying and analyzing images. Additionally, there are advanced modules available as options for displaying and analyzing images, see data sheets P-000-1000-0 and P-000-7331-0.
Image Acquisition Software
The Nano-I™ has two types of image capture software; one is for casual or novice users and the other is for advanced users. EZMode™ software is ideal for new Nano-I™ operators or operators that want to use the instrument on an occasional basis. The X'Pert™ software gives powerful control over the Nano-I™ and is designed for advanced AFM users.
EZMode™ Software
EZMode™ software is a sequential software package that guides you through the process of acquiring an AFM image. The process oriented software gives a step-by-step procedure for getting an AFM image. At the top of the EZMode™ screen is a list of the steps that must be followed.
EZMode™ Software Interface
The following steps are provided in the EZMode™ software. By following these steps it is possible for even the most inexperienced operator to get an AFM image:

  •  Assure that a cantilever is in the Microscope.
  • Start: Calibrate Scanner (optional): Select "linearize", then "scanner auto-linearity".
  • Select Mode: Contact Mode or Vibrating Mode.
  • Align Laser: Align the laser onto the cantilever.
  • Frequency Sweep: Automatic peak detection for vibrating mode imaging. (only in vibrating mode)
  • Stage: Move sample until desired scan area is under cantilever.
  • Tip Approach: Activate the motors for approaching the sample with the probe.
  • Scanner Sample: Set the scan size and scan parameters.
  • Image Processing: Visualize and analyze images.
  • Tip Retract: Withdraw tip when scan is complete.
X'Pert™ Software
Direct control of the available feature in an "interactive" mode is possible with the X'Pert™ software. Below is a view of the screen for X'Pert™ software:
X'Pert™ Software Interface
The menu items that are available in the X'Pert™ software are:
  1. Setup: This window contains all of the control parameters for operating the microscope including scan ranges, PID settings, etc.
  2. Tip: The tip button controls all aspects of the tip approach to the sample. The type of approach, rate of approach, and withdrawal are controlled.
  3. Scanner Control: This window is used while scanning a sample. The window shows between 1 and 4 windows and has the scan size, speed, PID settings, and other scan parameters.
  4. Force/Distance Window: Complete control of Force/Position curves is possible with the force position curve window.
Image Analysis
All of the commonly available image analysis techniques come as standard features with the Nano-I™ AFM system. Functions that are available are:
  • Histogram Adjust
  • Image Level
  • 3-D Display
  • Line Profile
  • Image Correct
Nano-I™ Image Analysis Software
Each of the AFM image analysis software features is activated with an icon at the top of the analysis window. Software features include:
  • Image Leveling: This window permits the removal of sample tilt from images. Removal methods include 3 point plane, polynomial plane fit, and 1D line leveling. User specified areas may be selected and excluded from the leveling process.
  • Line Profiles: Several types of line profiles may be selected. They include Horizontal, Vertical, Oblique, Polygonal, Circular, and several line average. Up to four line profiles may be selected for analysis. Horizontal and Vertical distances may be calculated on the line scans.
  • Histogram Analysis: The histogram analysis feature is useful for optimizing the display of AFM images. A region of the image histogram may be selected and used for the full pallet range of a displayed image.
  • Filtering: Several filtering functions may be applied to an AFM image. Filter options include the blur function, a predetermined filter function, and a conventional kernel. It is possible to select areas of the image that are not included in the filter process.
  • Fourier Filtering: A standard FFT function may be applied to an image.
  • 3D Imaging: The 3-D imaging feature images may be viewed from several angles and perspectives. Simply dragging the mouse over the image changes the viewing angles.
 
 
 
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