Henry Everitt

Henry Everitt

Adjunct Professor of Physics

Office Location: 
Physics Bldg, Box 90305, Durham, NC 27708
Front Office Address: 
Box 90305, Durham, NC 27708-0305
Phone: 
(256) 876-1623

Overview

Dr. Everitt is one of the Army's chief scientists. He works at the Army's Aviation and Missile RD&E Center at Redstone Arsenal, AL. Through his adjunct appointment in the Duke Physics Department, he leads an active experimental research group in condensed matter physics, nanophotonics, molecular physics, and novel terahertz imaging with colleagues on campus and through an international network of collaborators. Four principal research areas are being pursued:

1) Ultrafast Spectroscopy. This effort concentrates on the ultrafast spectroscopic characterization of wide bandgap semiconductor heterostructures and nanostructures. We use independently tunable pump and probe wavelengths that span the ultraviolet-visible-infrared regions from 200 nm to 12 microns with pulses shorter than 150 fs. The objective is to mapout and control carrier, exciton, and phonon transport and relaxation pathways in metal oxide and III-N semiconductors, sometimes doped with rare-earth atoms, using quantum efficiency, cw and time-resolved photoluminescence and differential transmission measurements. Areas of recent interest include characterization of efficient phosphorescence in sulfur-doped ZnO, carrier dynamics in III-N epilayers and multiple quantum wells, and characterization of radiative and nonradiative recombination of rare earth dopants in wide bandgap semiconductor hosts.

2) Ultraviolet Nanoplasmonics. Using metal nanoparticles to concentrate electromagnetic fields locally is an area of active research, most of which concentrates on using Au or Ag in the visible or near infrared spectral regions. Neither metal works in the ultraviolet, but there are significant advantages of extending plasmonics into the ultraviolet, including enhanced Raman cross sections, accelerated photo-degradation of toxins, and accelerated excitonic recombination. In partnership with Profs. April Brown (Duke ECE), Naomi Halas (Rice Univ.), Fernando Moreno (Univ. Cantabria), and others, we have been identifying and exploring new nanostructured metals including gallium and aluminum for ultraviolet plasmonics. We have recently demonstrated accelerated emission rates and surface enhanced Raman spectra in the ultraviolet.

3) Molecular Physics. The longest research effort involves the use of molecular rotational spectroscopy and time-resolved techniques to investigate molecular collision dynamics. These studies will help us develop more efficient terahertz sources, detect and identify clouds of trace gases, and understand nonequilibrium atmospheres and interstellar media. In collaboration with Prof. Frank De Lucia of Ohio State Univ., Dr. Everitt was the first to map out the complete rotational and vibrational energy transfer map of methyl fluoride, leading to the demonstration of a compact, tunable, coherent source of terahertz radiation for use in ground-based spectroscopy and astronomical observation. This double resonance technique has now been adapted as a new means for remotely identifying the constituents of a trace gas cloud at distances up to 1 km.

4) Terahertz Imaging. This newest activity uses powerful, cw, tunable millimeter- and submillimeter-wave sources to adapt various coherent imaging techniques to the terahertz spectral region. Interferometry, digital holography, tomography, synthetic aperture RADAR, ISAR, ellipsometry, and polarimetry are all explored to develop practical tools for non-destructive measurements of visually opaque materials. The lab contains a unique combination of tunable sources, Schottky diode detectors, heterodyne receivers, and bolometers, plus a one-of-a-kind THz beam characterization and imaging instrument. The lab also explores ways of optimizing and accelerating these slow imaging methodologies using digital reconstruction and compressive sampling techniques pioneered by on-campus collaborator Prof. David Brady and novel beam forming metamaterials with Prof. David Smith.

Education & Training

  • Adjunct Professor, Physcis, Duke University 2011 - 2014

  • Ph.D., Duke University 2002

Selected Grants

Ultrafast Optical Characterization of Wide Bandgap Semiconductor Heterostructures and Nanostructures awarded by Army Research Office (Principal Investigator). 2004 to 2005

Ultrafast Optical Characterization of Wide Bandage Semiconductors and Polyatomic Molecules awarded by Army Research Office (Co-Principal Investigator). 2001 to 2004

DURIP Equipment Request: A Streak Camera for Time-Resolved Photoluminescence Characterization of Wide Bandgap awarded by Air Force Office of Scientific Research (Co-Principal Investigator). 2003 to 2004

Duke Terahertz Femtosecond Diagnostic Laboratory awarded by Lord Foundation of North Carolina (Co-Principal Investigator). 1999 to 2002

(98-0465) A Millimeter Wave Photonic Crystal Laser-Staff Research Proposal awarded by Army Research Office (Co-Principal Investigator). 1997 to 1998

(97-0440) Optically Pumped Far-Infrared Lasers Based on Photonic Band Gap Crystals awarded by Army Research Office (Co-Principal Investigator). 1993 to 1997

(95-0305) Optically Pumped Far-Infrared Lasers Based on Photonic Band Gap Crystals awarded by Army Research Office (Co-Principal Investigator). 1993 to 1996

(96-0031) Optically Pumped Far-Infrared Lasers Based on Photonic Band Gap Crystals awarded by Army Research Office (Co-Principal Investigator). 1993 to 1996

(94-0187) Optically Pumped Far-infrared Lasers Based on Photonic Band Gap Crystals awarded by Army Research Office (Co-Principal Investigator). 1993 to 1996

(88-0389) Millimeter and Submillimeter Science and Technology awarded by National Aeronautics and Space Administration (Co-Principal Investigator). 1987 to 1989

Binder, R, Roberts, AT, Kwong, NH, Sandhu, A, and Everitt, HO. "Nonlinear saddle point spectroscopy and electron-phonon interaction in graphene." Optical Properties of Graphene. January 1, 2017. 349-386. Full Text

Zhang, X, Li, X, Reish, ME, Zhang, D, Su, NQ, Gutiérrez, Y, Moreno, F, Yang, W, Everitt, HO, and Liu, J. "Plasmon-Enhanced Catalysis: Distinguishing Thermal and Nonthermal Effects." Nano letters 18.3 (March 2018): 1714-1723. Full Text

Gutiérrez, Y, Ortiz, D, Saiz, JM, González, F, Everitt, HO, and Moreno, F. "The UV Plasmonic Behavior of Distorted Rhodium Nanocubes." Nanomaterials (Basel, Switzerland) 7.12 (December 4, 2017). Full Text

Karl, N, Heimbeck, MS, Everitt, HO, Chen, H-T, Taylor, AJ, Brener, I, Benz, A, Reno, JL, Mendis, R, and Mittleman, DM. "Characterization of an active metasurface using terahertz ellipsometry." Applied Physics Letters 111.19 (November 6, 2017): 191101-191101. Full Text

Nasr, M, Richard, JT, Skirlo, SA, Heimbeck, MS, Joannopoulos, JD, Soljacic, M, Everitt, HO, and Domash, L. "Narrowband Metamaterial Absorber for Terahertz Secure Labeling." Journal of Infrared, Millimeter, and Terahertz Waves 38.9 (September 2017): 1120-1129. Full Text

Richard, JT, Heimbeck, MS, Blake Autin, L, and Everitt, HO. "Wide bandwidth, millimeter-resolution inverse synthetic aperture radar imaging." Journal of the Optical Society of America A 34.7 (July 1, 2017): 1073-1073. Full Text Open Access Copy

Gunawardana, B, Liu, H-C, Samaraweera, RL, Heimbeck, MS, Everitt, HO, Iñarrea, J, Reichl, C, Wegscheider, W, and Mani, RG. "Millimeter wave radiation-induced magnetoresistance oscillations in the high quality GaAs/AlGaAs 2D electron system under bichromatic excitation." Physical Review B 95.19 (May 2017). Full Text

Kong, W, Roberts, AT, Jiao, WY, Fournelle, J, Kim, TH, Losurdo, M, Everitt, HO, and Brown, AS. "UVB-emitting InAlGaN multiple quantum well synthesized using plasma-assisted molecular beam epitaxy." AIP Advances 7.3 (March 2017): 035109-035109. Full Text

Zhang, X, Li, X, Zhang, D, Su, NQ, Yang, W, Everitt, HO, and Liu, J. "Product selectivity in plasmonic photocatalysis for carbon dioxide hydrogenation." Nature communications 8 (February 23, 2017): 14542-. Full Text Open Access Copy

Zhu, R, Richard, JT, Brady, DJ, Marks, DL, and Everitt, HO. "Compressive sensing and adaptive sampling applied to millimeter wave inverse synthetic aperture imaging." Optics Express 25.3 (February 6, 2017): 2270-2270. Full Text Open Access Copy

Liu, J, and Everitt, H. "Light-driven reaction converts carbon-dioxide into fuel." Chemical Engineering World 52.2 (February 1, 2017): 34-.

Pages

Karl, N, Heimbeck, M, Everitt, H, Chen, HT, Taylor, AJ, Benz, A, Reno, JL, Brener, I, Mendis, R, and Mittleman, DM. "Characterization of switchable terahertz metasurfaces." October 25, 2017.

Karl, N, Heimbeck, MS, Everitt, HO, Chen, HT, Taylor, AJ, Benz, A, Reno, JL, Brener, I, Mendis, R, and Mittleman, DM. "Terahertz phase modulation in a slab waveguide metasurface." October 12, 2017. Full Text

Kriisa, A, Liu, H-C, Samarweera, RL, Heimbeck, MS, Everitt, HO, Wegscheider, W, and Mani, RG. "Remotely sensed in microwave irradiated GaAs/AlGaAs two-dimensional electron system." June 2017. Full Text

Gutiérrez, Y, González, F, Saiz, JM, De La Osa Alcaraz, R, Sanz, JM, Ortiz, D, Everitt, HO, and Moreno, F. "Recent advances in metals for plasmonics applications in the UV range." January 1, 2017. Full Text

Karl, N, Heimbeck, M, Everitt, H, Chen, HT, Taylor, AJ, Benz, A, Reno, JL, Brener, I, Mendis, R, and Mittleman, DM. "Characterization of switchable terahertz metasurfaces." January 1, 2017. Full Text

Binder, R, Roberts, A, Kwong, NH, Sandhu, A, and Everitt, HO. "Global k-space analysis of electron-phonon interaction in graphene." December 16, 2016.

Karl, N, Heimbeck, M, Everitt, H, Chen, HT, Taylor, AJ, Benz, A, Reno, JL, Brener, I, Mendis, R, and Mittleman, DM. "Characterization of switchable terahertz metasurfaces." November 28, 2016. Full Text

Heimbeck, MS, and Everitt, HO. "Off-axis Fresnel digital holography at terahertz frequencies." July 18, 2016. Full Text

Zhang, X, Gutierrez, Y, Li, P, Barreda, AI, Watson, AM, Alcaraz De La Osa, R, Finkelstein, G, Gonzalez, F, Ortiz, D, Saiz, JM, Sanz, JM, Everitt, HO, Liu, J, and Moreno, F. "Plasmonics in the UV range with Rhodium nanocubes." January 1, 2016. Full Text

Akyildiz, HI, Roberts, AT, Everitt, HO, and Jur, JS. "Optical tuning of poly(ethylene terephthalate) by organometallic vapor infiltration." August 10, 2014.

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