Emeritus Professor
University of London, 1960

Research Summary:

Professor Perry’s group primarily studies the optical properties of solids, which include such diverse materials as semiconductor heterostructures, metals, insulators, and bio-molecular systems. Phenomena of interest cover phase transitions, localization, superconductivity, elementary excitations (e.g. electronic, magnons, plasmons, and phonons) and non-linear dynamics. The interaction of photons with solids is used as a probe of single particle and many body collective effects.

The group uses a broad range of experimental techniques which include absorption, reflection, excitation, photoluminescence, modulation, and Raman spectroscopy: Spectroscopic instrumentation covers the ultra-violet, visible, infrared, and far infrared regions of the electromagnetic spectrum. Ultra-high magnetic fields (up to 32 tesla) are utilized at the National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL. An optics program operated as a ‘user facility’ under the direction of Prof. Perry is in full operation at the Pulsed High Magnetic Field Facility, Los Alamos National Laboratory, Los Alamos, NM. This program supports post-docs. and graduate students at LANL engaged in photoluminescence spectroscopy, time resolved measurements using fast-pulse lasers, and surface magnetization optical Kerr effect (SMOKE) studies in pulsed magnetic fields up to 60 tesla. Participation in the new 100 tesla (1 million gauss) project scheduled for 1999 is in the planning stage.

Recent Publications:

Y.J. Park, M. van Veenhuizen, J.S. Moodera, C.H. Perry, and D. Heiman, “Generation and Detection of Spin Current in GaAs with MgO Tunnel Barriers”, APS, March Meeting # B12.004, 2007. (submitted to PRL).

W.T Lu, Y.J. Huang, P. Vodo, R.K. Banyal, C.H. Perry, and S .Sridhar, “A New Mechanism for Negative Refraction and Focusing Using Selective Diffraction From Surface Corrugation”, Optics Express, 15, 9166, 2007

E.H. Kim,Y.H. Shin, Yongmin Kim, S.J. Noh, C.H. Perry, J.A. Simmons, S.A. Crooker, and T. Takamasu, “Non-linear Optical Transitions of GaAs/AlGaAs Asymmetric Double-well Structures in Magnetic Fields”, Appl. Phys. Let, 89, 032114 (2006)

Y.Kim, K-S. Lee, and C.H. Perry, � Optically detected heavy- and light-hole anti-crossing in GaAs quantum wells under pulsed magnetic fields,� Appl. Phys. Lett, 84, 738 (2004)

I. Appelbaum, K.J. Russell, V. Narayanamurti, D.J. Monsma, C.M. Marcus, M.P. Hanson, A.C. Gossard, H. Tempkin, and C.H. Perry, “Ballistic Electron Emission Luminescence” Appl. Phys. Lett, 82, 4498 (2003).