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Author: premsagar kavuri
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1. AFM characterization of nanopositioner in-plane stiffnesses
Seung Ho Yang, Yong Sik Kim, Premsagar Purushotham Kavuri, Jae Myung Yoo, Young M. Choi, Nicholas G Dagalakis
A versatile method for measurement of in-plane stiffness of micro-elements was developed and its usefulness has been demonstrated. The in-plane stiffness of a NIST nanopositioner has been measured directly using a colloidal probe in an AFM without an ...
2. Accurate Nanometer-Scale Imaging and Measurements with SEM
Bradley N Damazo, Bin Ming, Premsagar Purushotham Kavuri, Andras Vladar, Michael T Postek
Scanning electron microscopes (SEMs) are incredibly versatile instruments for millimeter to nanometer scale imaging and measurements of size and shape. New methods to improve repeatability and accuracy have been implemented on the so-called Referenc ...
3. Characterization and Resistive Switching Properties of Solution-Processed HfO2,
HfSiO4, and ZrSiO4 Thin Films on Rigid and Flexible Substrates
Joseph Leo Tedesco, Walter Zheng, Oleg A Kirillov, Sujitra Jeanie Pookpanratana, Hyuk-Jae Jang, Premsagar Purushotham Kavuri, Nhan V Nguyen, Curt A Richter
4. Elastic Modulus of Faceted Aluminum Nitride Nanotubes Measured by Contact Resonance Atomic Force Microscopy
Gheorghe Stan, C Ciobanu, Timothy Thayer, George Wang, Randall Creighton, Premsagar Purushotham Kavuri, Leonid A Bendersky, Robert Francis Cook
A new methodology for determining the radial elastic modulus of a one-dimensional nanostructure laid on a substrate has been developed. The methodology consists of the combination of contact resonance atomic force microscopy (AFM) with finite element ...
5. Nanoparticle Size and Shape Evaluation Using the TSOM Method
Bradley N Damazo, Ravikiran Attota, Premsagar Purushotham Kavuri, Andras Vladar
A novel through-focus scanning optical microscopy (TSOM) method that yields nanoscale information from optical images obtained at multiple focal planes will be used here for nanoparticle dimensional analysis. The TSOM method can distinguish not only ...