Damping vibration studies of scanning near-field optical microscope

Terry Yuan-Fang Chen; Haw-Long Lee

doi:10.1117/12.821219

12 January 2009 Damping vibration studies of scanning near-field optical microscope

Terry Yuan-Fang Chen, Haw-Long Lee

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 71330H (2009) https://doi.org/10.1117/12.821219
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

Scanning near-field optical microscopy (SNOM) is one of the major proximal probe technologies for obtaining high-resolution images beyond the diffraction limit of light and to fabricate nanometer-scale structures. The effect of interactive damping on the flexural vibration frequency for the scanning near-field optical microscope (SNOM) fiber probe based on the Timoshenko beam (including the effects of shear deformation and rotary inertia) theory, has been analyzed. The effects of the transverse contact stiffness, damping factor and the ratio of different probe dimensions on the damping vibration frequency were studied. The results show that increasing the ratio of probe length to radius increases the damping vibration frequency of mode 1. The damping vibration frequencies, based on the Bernoulli-Euler beam theory and the Timoshenko beam theory, are compared. When the contact stiffness is very large for the higher modes, the effects of shear deformation and rotary inertia on the frequency becomes significant. Furthermore, increasing the damping factor increases the vibration frequency, especially for dimensionless damping factor &egr;_f >0.4

Citation Download Citation

Terry Yuan-Fang Chen and Haw-Long Lee "Damping vibration studies of scanning near-field optical microscope", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71330H (12 January 2009); https://doi.org/10.1117/12.821219

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available