Instruction manual

SPM Fundamentals for the MultiMode
Hardware
Rev. B MultiMode SPM Instruction Manual 21
Figure 2.1d Quad Photodetector Arrangement
2.1.3 Scanners
Figure 2.1e below shows the various, interchangeable scanners. The maximum scan size and
resolution of images depend upon the choice of scanner (see chart). Longer scanners, e.g., type “J,”
yield larger scan sizes; shorter scanners, e.g., type “A,” offer smaller images down to the atomic-
scale. Smaller scanners tend to be more noise-free at acoustic frequencies because of their compact
size and rigidity. Larger scanner offer wider scans, while requiring extra noise dampening
precautions at smaller scan sizes of high resolution.
Figure 2.1e Various Scanners Available with the MultiMode SPM
Note: All scanners are interchangeable.
Laser
Cantilever
Mirror
Photodetector
AFM
LFM
B
A
CD
Photodetector segments
AS-130V
(vertical “J”)
AS-200 (“K”)
AS-130 (“J”)
AS-0.5 (“A”)
Not shown: AS-12 (“E”)