Abstract
In order to characterize surface chemomechanical phenomena driving microelectromechanical systems behavior, we propose herein a method to simultaneously obtain a full kinematic field describing the surface displacement and a map of its chemical modification from optical measurements. Using a microscope, reflected intensity fields are recorded for two different illumination wavelengths. Decoupling the wavelength-independent and -dependent contributions to the measured relative intensity changes then yields the sought fields. This method is applied to the investigation of the electroelastic coupling, providing images of both the local surface electrical charge density and the device deformation field.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Zhi Li, Konrad Herrmann, and Frank Pohlenz
Opt. Lett. 32(12) 1743-1745 (2007)
Sung-Liang Chen, Zhixing Xie, Tao Ling, L. Jay Guo, Xunbin Wei, and Xueding Wang
Opt. Lett. 37(20) 4263-4265 (2012)
Jonas Kühn, Frédéric Montfort, Tristan Colomb, Benjamin Rappaz, Corinne Moratal, Nicolas Pavillon, Pierre Marquet, and Christian Depeursinge
Opt. Lett. 34(5) 653-655 (2009)