1. Design for AFM demonstration Kevin D. McCarthy 9/28/05

2. What is AFM and why is it so clever?

3. Atomic force microscope photodetector laser k 0.1 N/m AFM: Atomic Force Microscope

4. Atomic force microscope, deflected photodetector laser k 0.1 N/m AFM: Atomic Force Microscope

5. Feedback loop z How it traces surface…

6. AFM: Atomic Force Microscope x V piezo

7. AFM: Atomic Force Microscope x V piezo

8. AFM: Atomic Force Microscope x V piezo

9. AFM: Atomic Force Microscope x V piezo

10. AFM: Atomic Force Microscope x V piezo

11. AFM: Atomic Force Microscope x V piezo

12. AFM: Atomic Force Microscope x V piezo

13. AFM: Atomic Force Microscope x V piezo

14. AFM: Atomic Force Microscope x V piezo

15. AFM: Atomic Force Microscope x V piezo

16. AFM: Atomic Force Microscope x V piezo

17. AFM: Atomic Force Microscope x V piezo

18. AFM: Atomic Force Microscope x V piezo

19. AFM: Atomic Force Microscope x V piezo

20. AFM: Atomic Force Microscope x V piezo

21. AFM: Atomic Force Microscope x V piezo

22. AFM: Atomic Force Microscope x V piezo

23. AFM: Atomic Force Microscope x V piezo

24. AFM: Atomic Force Microscope x V piezo

25. AFM: Atomic Force Microscope x V piezo

26. AFM: Atomic Force Microscope x V piezo

27. AFM: Atomic Force Microscope x V piezo

28. AFM: Atomic Force Microscope x V piezo

29. AFM: Atomic Force Microscope x V piezo

30. AFM: Atomic Force Microscope x V piezo

31. AFM: Atomic Force Microscope x V piezo

32. AFM: Atomic Force Microscope x V piezo

33. AFM: Atomic Force Microscope x V piezo

34. AFM: Atomic Force Microscope x V piezo

35. photodetector laser k 0.1 N/m Optical levers sensitivity means nN forces can be controllably exerted…

36. Design for class-room scale demo of AFM imaging mechanism… Z axis motion… Laser pointer mirror photo-detector screen Wheeled assembly can be rolled over books or other ~1 inch obstacles, while operator tries to maintain dot position on photo-detector screen. An assistant can be continuously recording (strip-chart style) the z piezo reading vs. x (horizontal position)