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Faculty Research Interests and
Selected Publications

 

Erik SanchezErik Sanchez Assistant Professor

Phone: 503.725.3819
Email: esanchez@pdx.edu
Address: Portland State University
1719 SW 10th Avenue
Portland, OR 97201
Office: SB2 422
Web site: http://www.physics.pdx.edu/~esanchez/


Education
Ph.D. 1999, Environmental Science, Physics, Portland State University
M.S. 1993, Physics, Portland State University
B.S. 1989, Physics, Portland State University

Research Interests
Development and implementation of nano-scale imaging techniques. Study of the optical interaction of light and nanometric objects in order to generate enhanced fields for fluorescence and Raman spectroscopy/microscopy. Determination of new applications for Focused Ion / Electron Beam systems towards the study of biological systems using near-field and far-field microscopies.

Selected Publications
J. T. Krug II, E. J. Sánchez, X. S. Xie, "Fluorescence Quenching in Tip-Enhanced Nonlinear Optical Microscopy", Applied Phys. Lett., May 30, 2005.

Hartschuh, Achim, Sánchez, Erik J. , Xie, X. Sunney, Novotny, Lukas "Near-field Raman Spectroscopy of Single-Walled Carbon Nanotubes", Phys. Rev. Lett. 90, 9, March 7, 2003.

Sánchez, Erik J.; Krug, John T. II; Xie, X. Sunney "Ion and Electron Beam Assisted Growth of Nanometeric SimOn Structures for Near-Field Microscopy", J. Chem. Phys. 284, 423, 2002.

Krug, John T. II; Sánchez, Erik J.; Xie, X. Sunney "Design of near-field probes with optimal field enhancement by finite difference time domain electromagnetic simulation", J. Chem. Phys., 116, 24, 10895, 2002.

L. Novotny, E. J. Sánchez, and X. S. Xie, Near-field optical spectroscopy based on the field enhancement at laser illuminated metal tips, Optics and Photonics News, December, 1999.

Progress made in near-field imaging with light from a sharp tip, Physics Today, July, pp. 1820, 1999.

E.J. Sánchez, L. Novotny, X. S. Xie, "Near-field Fluorescence Microscopy Based on Two-Photon Excitation With Metal Tips", Phys. Rev. Lett. , Phys. Rev. Lett. 82, 20, 1999.

L. Novotny, E.J. Sánchez, X. S. Xie, "Near-field Optical Imaging Using Metal Tips Illuminated by Higher-order Hermite-Gaussian Beams", Ultramicroscopy 71, 21, 1998.


 
awarded

Jeff Hoffman & Don Tornquist have been chosen for the 2009-2010 ECE Undergraduate Honors Program. The program enables undergraduates to go beyond their normal studies to work with faculty in the area of their choice: research, entrepreneurship or innovation.

Robert Daasch

Dr. Robert Daasch has won the Semiconductor Research Corporation 2009 Technical Excellence Award. It is the second highest research award in the SRC. The Technical Excellence Award was established as an incentive and recognition program for research of exceptional value to GRC members. Authorized by the Board of Directors in December 1991, the award is intended to complement the Inventor Recognition Award. The Technical Excellence Award is shared among key contributors for innovative technology that significantly enhances the productivity/
competitiveness of the semiconductor industry. To date 25 research efforts have received the award. The 2008 Technical Excellence Award was presented to a team of researchers from Portland State University led by Professor W. Robert Daasch, and supported by students Liwei Ning (PhD 2009), and Amit Nahar (MS 2006) for their research, "Burn-in Reduction: Improving Outlier Screening".