CAREER OBJECTIVE

To secure a position in the application of my extensive experience and background in material science characterization using infrared and optical techniques for the research and development of electronic, electro-optic, or magnetic devices.

SUMMARY OF QUALIFICATIONS

Strong background in investigating optical, microwave, and transport properties of superconductors, organic conductors, semiconductors, and magnetic materials and in applying obtained research results to material characterization.

Distinguished experimental skills and in-depth knowledge of Fourier Transform Infrared spectroscopy of solids and visible to ultraviolet spectroscopy techniques using grating spectrometers, fiber optics, and photoluminescence microscopes.

Experience in the design and construction of microwave cavity circuitry for measurement of microwave absorption by solids.

Extensive experience in low-temperature cryogenics, ultrahigh vacuum techniques, micro probing, ultrafast bolometric response and high-magnetic field transmittance measurements of superconducting and magnetic thin films.

Hand-on experience in sputtering techniques for deposition of metal/insulator thin films on substrates.

Experience in computer programming (FORTRAN, BASIC and C) and in the use of several commercially available software packages for PC computers.

EDUCATION

1994: Ph.D. Solid State Physics, University of Florida, Gainesville, FL.

1987: M.S. Chemical Physics, University of Puerto Rico, Rio Piedras, PR.

1984: B.S. Physics, University of Puerto Rico, Rio Piedras, PR.

EXPERIENCE

Postdoctoral Research Associate 1995-present

Laboratory for Physical Science, University of Maryland, College Park, MD,

Setup magneto-optical system to study optical transmittance and reflectance of colossal magneto resistance materials as a function of temperature and magnetic field with circularly polarized light.

Revealed anomalous spectral weight transfer in the near-infrared/visible range in the optical properties of magnetic thin film materials such as Nd_0.7Sr_0.3 MnO₃ as function of temperature and high magnetic field.

Studied the electrodynamics of the vortex state at far-infrared frequencies by measuring the magneto-optical transmittance of YBa₂Cu₃O_7- thin films with circularly polarized light.

Characterized YBa₂Cu₃O_7- thin films by measuring ac susceptibility dc transport and far-infrared transmittance.

Characterized silicon and quartz materials to be used as circular polarizers in the infrared/visible range.

Graduate Research Assistant 1989-94

Physics Department, University of Florida, Gainesville, FL

Conducted research in the optical reflectance from the far infrared to the visible/UV range of high-temperature superconductors and organic conductors.

Characterized the microwave and optical properties of organic conductors.

Made a complete study of the anisotropy in the optical properties of the high-temperature superconductors YBa₂Cu₃O_7-, Bi₂Sr₂CaCu₂O₈, and La₂CuO₄₊ from the far-infrared to the ultraviolet range.

Measured the anisotropy in transport properties (resistivity) of Bi₂Sr₂CaCu₂O₈ single crystals.

Characterized the microwave and optical properties of organic conductors.

Developed computer software for analysis of data.

Graduate Research Assistant 1984-88 Physics Department, University of Puerto Rico, Rio Piedras, PR

Conducted research in the area of charge transfer in electrolytic solutions.

Obtained the electronic transfer rate at the metal/electrolyte interface considering a position-dependent electron tunneling and using a quantum mechanical approach.

Developed algorithm for obtaining numerical solution of differential equations and for evaluation of special functions.

AWARDS AND HONORS

National Hispanic Scholarship Fund Scholar, (1990-92).

Fellowship from US department of Education (1991-93).

MEMBERSHIP PROFESSIONAL SOCIETIES

American Physical Society.

The International Society for Optical Engineering.

PUBLICATIONS AND RECENT INVITED TALKS

Authored and co-authored over 13 research papers published in major international journals.

Seminars at Florida State University, Massachusetts Institute of Technology, University of Maryland, and National Institute of Standards.

PERSONAL DATA

Citizenship: U.S.A.

PUBLICATIONS

1. L. Blum, M.A. Quijada, and P.P. Schmidt, "Kinetics of charge transfer at metal-electrolyte interfaces: from classical to quantum statistic", in Proceedings of the International Symposium on Quantum Chemistry, Solid State Theory, and Computational Methods, 21, 245 (1987).

2. G.L. Carr, M.A. Quijada, and D.B. Tanner, " Fast bolometric response by high-T_c detectors with subnanosecond synchrotron radiation", Appl. Phys. Lett. 57, 25 (1990).

3. G.L. Carr, M.A. Quijada, D.B. Tanner, C.J. Hirschmugl, G.P. Williams, S. Etemad, D. Hemmick, F. Derosa, T. Venkatesan, B. Dutta, A. Inam, and X.D. Wu, "infrared response of YBa₂Cu₃O_7- films to pulsed, broadband synchrotron radiation", in Superconductivity Applications for Infrared and Microwave Devices, edited by K.B. Bhasin and V.O. Heinen (SPIE, Bellingham, Washington, 1990), pp. 187-192.

4. D.B. Tanner, F. Gao, M.A. Quijada, D.B. Romero, J.P. Rice, D.M. Ginsberg, J. Talvacchio, M.G. Forrester, L. Forro, D. Mandrus, and L. Mihaly, "Optical conductivity of the high T_c: Search for energy gap", J. Phys. Chem. Solids 53, 1611-1618 91992).

5. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, " Infrared conductivity of single-domain Bi₂Sr₂CaCu₂O₈, high-temperature superconductor", in Proceedings of the 6th International Symposium on Superconductivity, Hiroshima, Japan, 26-29 October (1993).

6. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, " ab-plane anisotropy in optical reflectance of single crystals of Bi₂Sr₂CaCu₂O₈ ", Z. Fur Physik B 94, 255-259 (1994).

7. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, " ab-plane anisotropy in single-domain Bi₂Sr₂CaCu₂O₈ high-temperature superconductors", Physica C 235-240 , 1123, (1994).

8. D.N. Basov, R. Liang, D.A. Bonn, W.N. Hardy, B. Dabrowski, M.A. Quijada, D.B. Tanner, J.P. Rice, D.M. Ginsberg, and T. Timusk, " In-plane anisotropy of London penetration depth in YBa₂Cu₃O_7- and YBa₂Cu₄O₈ superconductors", Phys. Rev. Lett. 74, 598 , 1995.

9. L.K. Chou, M.A. Quijada, M.B. Clevenger, G.F. de Oliveira, K.A. Abboud, D.B. Tanner, and D.R. Talham, "Dication salts of the organic donor bis(ethylenedithio) tetrathiafulvalene (BEDT-TTF)", Chem. Mater. 7, No 3, 530, 1995.

10. M.A. Quijada, D.B. Tanner, F. Chou, and D. Johnston, "Optical reflectance of an electrochemical oxidized single crystal of La₂CuO₄₊ ", Phys. Rev. B, 52, 15485, 1995.

11. D.B. Tanner, M.A. Quijada, D.N. Basov, T. Timusk, R.J. Kelley, M. Onellion, B. Dabrowski, J.P. Rice, and D.M. Ginsberg, "The ab-plane optical conductivity of high-T_c superconductors", Journal of Superconductivity 8, No 1, 1995.

12. S. Wu, S. Kaplan, M.A. Quijada, K. Sengupta, and H.D. Drew, "Improved circular polarizer for far-infrared lightpipe systems", Rev. Sci. Instrum., 66, 5559, 1995.

13. S. Kaplan, M.A. Quijada, H.D. Drew, D.B. Tanner, G.C. Xiong, C. Kwon, R. Ramesh, and T. Venkatesan, "Evidence for Dynamic Jahn-Teller effects from optical conductivity of colossal magneto resistance thin films", Phys. Rev. Lett., 77, 2081, 1996.

14. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, " Resistivity anisotropy in single-domain Bi₂Sr₂CaCu₂O₈ high-temperature superconductors", Manuscript in preparation.

15. M.A. Quijada, J. Cerne, H.D. Drew, C. Kwon, R. Ramesh, T. Venkatesan, V.N. Amolyaninova, J.J. Hamilton, and R. Greene " Carrier Mass Enhancement in La_0.5Sr_0.5CoO₃", Manuscript in preparation.

CONTRIBUTED TALKS

1. L. Blum, M.A. Quijada, and P.P. Schmidt, "Kinetics of charge transfer at metal-electrolyte interfaces", International Symposium on Quantum Chemistry, Solid State Theory, and Computational Method, Gainesville, FL, March 1987.

2. G.L. Carr, M.A. Quijada, D.B. Tanner, C.J. Hirschmugl, G.P. Williams, S. Etemad, D. Hemmick, F. DeRosa, T. Venkatesan, B. Dutta, A. Inam, and X.D. Wu, "Infrared response of YBa₂Cu₃O_7-d films to pulsed broadband IR radiation using synchrotron light source", SPIE Meeting on Optical Engineering, Orlando, FL, April 1990.

3. M.A. Quijada, D.B. Romero, D.B. Tanner, J.P. Rice, and D.M. Ginsberg, "Optical reflectance of single-domain crystals of YBa₂Cu₃O_7-d", American Physical Society National Meeting, Cincinnati, OH, March 1991.

4. M.A. Quijada, D.B. Romero, D.B. Tanner, J.P. Rice, and D.M. Ginsberg, "Anisotropy in the infrared reflectance of single-domain crystals of YBa₂Cu₃O_7-d" Scottish Universities Summer School in Physics, St. Andrews, Scotland, June 1991 (poster).

5. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, "Anisotropy in the ab-plane optical reflectance of single-domain crystals of Bi₂Sr₂CaCu₂O₈", American Physical Society National Meeting, Indianapolis, IN, March 1992.

6. D.B. Tanner, M.A. Quijada, R.J. Kelley, and M. Onellion, "ab-plane anisotropy of single-domain crystals of Bi₂Sr₂CaCu₂O₈", Gordon Research Conference on Superconductivity, Oxnard, CA, January 1993 (poster).

7. M.A. Quijada, D.B. Tanner, R.J. Kelley, and M. Onellion, "Far-IR ab-plane anisotropy of single-domain crystals of Bi₂Sr₂CaCu₂O₈", American Physical Society National Meeting, Seattle, WA, March 1993.

8. M.A. Quijada, "ab-plane anisotropy in optical reflectance of high-temperature superconductors", Florida State University, Tallahassee, FL, April 1993 (invited).

9. M.A. Quijada, "Anisotropy in optical properties of high-temperature superconductors", Massachusetts Institute of Technology, Cambridge, MA, Sept. 1993 (invited).

10. M.A. Quijada, D.B. Tanner, F. Chou, and D. Johnston, "Optical reflectance of La₂CuO₄₊ single crystal", American Physical Society National Meeting (Pittsburgh, PA, March 1994).

11. M. A. Quijada, D. B. Tanner, R. J. Kelley, and M. Onellion, "Resistivity tensor of Bi₂Sr₂CaCu₂O₈ single-domain crystals", American Physical Society National Meeting, (San Jose, CA, March 1995).

12. M.A. Quijada, "Anisotropy in optical conductivity of high-temperature superconductors", National Institute of Standards and Technology, Gaithersburg, MD, July 1995 (invited).

13. M.A. Quijada, S. Kaplan, H.D. Drew, D.B. Tanner, G.C. Xiong, C. Kwon, R. Ramesh, and T. Venkatesan, "Optical properties of manganite (CMR) materials", American Physical Society National Meeting (St. Louis, MO, March 1996).

14. M.A. Quijada, J. Cerne, H.D. Drew, C. Kwon, R. Ramesh, and T. Venkatesan, "Far-Infrared conductivity of CMR manganites", American Physical Society National Meeting (Kansas City, MO, March 1997).