Scanning
System
The
scanning system consists of an X-Y-Z piezoelectric stage, a digital stage
controller/driver, and adapters to mount the stage to the microscope platform and
extend the objective height to compensate for the additional stage height.
Images are acquired by moving the sample stage while keeping the excitation
beam fixed.
Stage:
Polytec P.I. E-527CL X-Y-Z piezoelectric
stage with 66 x 66 mm clear aperture.
Capacitive
sensors for feedback control.
Travel
Range 200 x 200 x 20 microns.
Maximum
stage speed (when used with E-710 controller/driver) 30Hz.
Controller/Driver:
Polytec
P.I. E-710 4-channel controller with sensor input.
32-bit
DSP, 200msec sample time feedback loop.
Resolution
less than 1nm.
Labview
library for program control.
RS-232
and IEEE 488 (GPIB) control interfaces.
Note:
Other control options (including a hardware interface) have recently become
available and are highly recommended.
Adapters:
Click the link for mechanical drawings (JPEG images).
Objective extender: Made of INVAR,
coefficient of thermal expansion 1.3ppm/ēC.
Microscope-to-Piezo Stage
adapter
Last updated August
10, 2003
