Scholarly Interest Report


 

Bruce R. Johnson  Distinguished Faculty Fellow  Distinguished Faculty Fellow in Chemistry   email:johnson@rice.edu    B.A. magna cum laude Chemistry, Mathematics, Physics (1975) University of Minnesota, Minneapolis, MN
 Ph.D. Chemistry (1981) University of Wisconsin, Madison, WI
  Primary Department  Department of Chemistry     Department Affiliations   Department of ChemistryRice Quantum Institute  
Information at NSF   Theory, Models and Computational Methods Program
Phone: 7032922698
Email: brjohnso@nsf.gov  
Websites   Bruce Johnson Home Page
  Bruce Johnson Home Page
  Johnson Home Page
 
Research Areas   Theoretical chemistry, dissociative and surfaceenhanced resonance Raman spectroscopy, fourwavemixing spectrsocopy, wavelets in quantum mechanics and electromagnetism and signal processing  
Current Research Interests   SurfaceEnhanced Spectroscopies
In conjunction with the Laboratory for Nanophotonics, this group is involved in theoretical understanding of the enhancement of Raman scattering for molecules near or on noble metal nanoparticles. The earliest of these studies was probably the first multivibrationalmode spectral simulation of SurfaceEnhanced Raman Scattering (SERS), focusing on the contributions of totallysymmetric modes of paminothiophenol (pmercaptoaniline) adsorbed on metal nanoshells to both Raman scattering and fluorescence. Current interests lie in extending the latter densitymatrix treatment to include modes of other symmetry that have been of strong interest in a number of other experiments. This will be in conjunction with experimental efforts in the lab to obtain SERS excitation profiles. The most recent work has focussed on the question of whether SurfaceEnhanced Raman Optical Activity (SEROA) can be selective for molecular chirality as is existing Raman Optical Activity. This work has shown that the strong local fields around gold and silver nanoparticles are generally sufficient to interfere with this, but there can exist particular substrate, detection geometry and polarization strategies for which theory predicts both signal enhancement and chiral selectivity.
Wavelet Technology
Wavelets offer "universal" bases that potentially allow orthogonality, localization and customizable resolution all at the same time. These aspects make them attractive for future development of highlyautomated solutions of the Schrödinger equation in quantum mechanics, the strong local EM fields near metal nanoparticles, and many other applications. Our group has worked on making use of orthogonal compactsupport wavelets practical, including systematic control of accuracy, extension to boundaryvalue and initialvalue constraints, and construction of publiclyavailable C++ code. Most recently, we have constructed a method particularly useful for multidimensional problems in which operator matrices are avoided, strongly increasing the efficiency of wavelet calculations. At the current time we are working on generalizing highorder convolutionfilter based methods that transcend the conventional functionrepresentation capabilities (approximation order) of such wavelet bases, at the same time beating the wavelet Gibbs phenomenon that occurs at discontinuities. These are important considerations for applications in QM theory with hard potential walls or in EM theory for interfaces between different dielectric media   Teaching Areas   molecular spectroscopy  
Selected Publications   Refereed articles   Lindsey R. Bornhoeft,Aida C. Castillo, Preston R. Smalley, Carter Kittrell, Dustin K. James, Bruce E. Brinson, Thomas R. Rybolt, Bruce R. Johnson, Tonya K. Cherukuri, and Paul Cherukuri "Teslaphoresis of Carbon Nanotubes." ACS Nano (submitted)Submitted    Richard Lombardini, Ramiro Acevedo, Alexander Kuczala, Kerry P. Keys, Carl P. Goodrich, Bruce R. Johnson "Higheroder wavelet reconstruction/differentiation filters and Gibbs phenomena." Journal of Computational Physics, 305: 244262.    C. D. Griffin, R. Acevedo, D. W. Massey, J. L. Kinsey and B. R. Johnson "Multimode wavelet basis calculations via the molecular selfconsistentfield plus configurationinteraction method." J. Chem. Phys., 124 (2006) : 134105.    D. K. Sparks and B. R. Johnson "Twodimensional quantum propagation using wavelets in space and time." J. Chem. Phys., 125 (2006) : 114104.    D. W. Massey, R. Acevedo and B. R. Johnson "Additions to the class of symmetricantisymmetric multiwavelets: Derivation and use as quantum basis functions." J. Chem. Phys., 124 (2006) : 014101.    J. W. Gibson and B. R. Johnson "Density matrix calculation of surface enhanced Raman scattering for pmercaptoaniline on silver nanoshells." J. Chem. Phys., 124 (2006) : 064701.    S. W. Bishnoi, C. J. Rozell, C. S. Levin, M. K. Gheith, B. R. Johnson, D. H. Johnson and N. J. Halas "AllOptical Nanoscale pH Meter." NanoLetters, 6 (2006) : 16871692.    Articles   R. Acevedo, R. Lombardini and B. R. Johnson, "MatrixFree Application of Hamiltonian Operators in Coifman Wavelet Bases," J. Chem. Phys. 132, 244112 (2010)    R. Lombardini, R. Acevedo, N. J. Halas and B. R. Johnson, "Plasmonic Enhancement of Raman Optical Activity in Molecules Near Metal Nanoshells: Theoretical Comparison of Circular Polarization Methods," J. Phys. Chem. C (Martin Moskovits Festschrift) 114, 73907400 (2010)    E. K. Lewis, W. C. Haaland, F. Nguyen, D. A. Heller, M. J. Allen, R. R. MacGregor, C. S. Berger, B. Willingham, L. A. Burns, G. B. I. Scott, C. Kittrell, B. R. Johnson, R. F. Curl and M. L. Metzker "Color Blind Fluorescence Detection for FourColor DNA Sequencing." Proc. Natl. Acad. Sci., 102 (2005) : 53465351.    H. Wang, R. Acevedo, H. Molle, J. L. Mackey, J. L. Kinsey and B. R. Johnson "Multiscale quantum propagation using compact support wavelets in space and time." J. Chem. Phys., 121 (2004) : 76477657.    A. Maloney, Kinsey, J., Johnson, B. "Wavelets in curvilinear coordinate quantum calculations: H2+ electronic states." J. Chem. Phys., 117 (2002) : 35483557.    Thierry A. Wasserman, Patrick H. Vaccaro, Johnson, B. "The influence of finite bandwidth excitation sources in degenerate fourwave mixing spectroscopy." J. Chem. Phys., 116 (2002) : 1009910121.    Other   Bruce R. Johnson, Jeffrey L. Mackey, and James L. Kinsey "Solution of Cartesian and Curvilinear Quantum Equations via Multiwavelets on the Interval." J. Comp. Phys., 168 (2000) : 356383.    Jeffrey L. Mackey, Bruce R. Johnson, Linh D. Le, Carter Kittrell, and James L. Kinsey "Resonance Raman Spectroscopy in the Dissociative A Band of Nitrosyl Chloride." J. Chem. Phys., 114 (2001) : 66316640.    B. R. Johnson "Multiwavelet Moments and Projection Prefilters." IEEE Trans. Signal Processing, 11 (November 2000) : 31003108.    B. R. Johnson and J. L. Kinsey "Quadrature Prefilters for the Discrete Wavelet Transform." IEEE Trans. Signal Processing, 48 (March 2000) : 873875.    B. R. Johnson, J. P. Modisette, P. A. Nordlander, and J. L. Kinsey "Quadrature integration for orthogonal wavelet systems." J. Chem. Phys., 110 (1999) : 83098317.    C.W. Hsiao, L. D. Le, E. S. Lotfi, C. Kittrell, J. L. Kinsey, and B. R. Johnson "Quantum Signatures of Unstable Dynamics in the Photodissociation of Ozone." (1999) : 193197.    B. R. Johnson, B.Y. Chang, C.W. Hsiao, L. Le, and J. L. Kinsey "Temperature dependence and dynamical instability in the Hartley absorption system of ozone." Journal of Chemical Physics, 108 (1998) : 76707678.    J. L. Kinsey and B. R. Johnson "Angular distributions of products in the photodissociation of diatomic molecules." Journal of Physical Chemistry, 102 (1998) : 96609665.    T. A. W. Wasserman, P. H. Vaccaro, and B. R. Johnson "Degenerate fourwave mixing spectroscopy as a probe of orientation and alignment in molecular systems." Journal of Chemical Physics, 108 (1998) : 77137738.    T. Muller, T. A. W. Wasserman, P. H. Vaccaro, and B. R. Johnson "Anisotropyinduced polarization effects in degenerate fourwave mixing spectroscopy: A new scheme for probing molecular orientation and alignmentmolecular orientation and alignmentmolecular orientation and alignment." Journal of Chemical Physics, 108 (1998) : 47.  
Creative Works   Other  Rice Quantum Institute Brochure 2003    
Presentations   Invited Talks   "Density matrix calculation of surface enhanced Raman scattering for pmercaptoaniline on silver nanoshells." Nanoscience Workshop at the University of Arkansas Little Rock, University of Arkansas Little Rock. (May 2006) With J. W. Gibson    PI. "Mixed TimeFrequency Quantum Propagation Using Compact Support Wavelets,." American Mathematical Society, Athens, OH (USA). (March 2004) With H. Wang, R. Acevedo, H. Molle, J. L. Mackey, J. L. Kinsey and B. R. Johnson    PI. "Multiscale Quantum Propagation Using Compact Support Wavelets in Space and Time,." Telluride Symposium on Dynamics and Many Body Theory, Telluride, CO. (August 2004) With H. Wang, R. Acevedo, H. Molle, J. L. Mackey, J. L. Kinsey and B. R. Johnson    "Molecular Spectroscopy, Quantum Dynamics and Wavelet Technology." Department of Chemistry, Texas Technology University, Lubbock, TX. (Feb. 2003)    "Wavelet Solution of the Schr¿dinger Equation." Department of Chemistry, Division of Physical Chemistry, Texas Technology University, Lubbock, TX. (Feb, 2003)    "Wavelet Basis Calculation of Wannier Functions." Southwest Theoretical Chemistry Conference 2002, University of Houston. (Nov 2002) With Stephen D. Clow    Lectures   "Wavelet Basis Calculation of Wannier Functions." 225th American Chemical Society National Meeting, New Orleans, LA. (Mar, 2003) With Stephen D. Clow    Other   "Science and Engineering Pursuits at the Rice Quantum Institute." Applied Sciences, University of Arkansas at Little Rock, Little Rock, Arkansas. (10/12/01)    "Solution of Cartesian and Curvilinear Quantum Equatios via Multiwavelets on the Interval ." American Mathematical Society National Conference, New Orleans, LA. (1/12/01)    "Molecular Spectroscopy, Quantum Dynamics, and Wavelet Technology." Dept. of Chemistry, Yale University, New Haven, CT. (April 2000)    "Molecular Spectroscopy, Quantum Dynamics, and Wavelet Technology." Dept. of Chemistry, New York University, New York. (April 2000)    "Solution of Cartesian and Curvilinear Quantum Equations via Multiwavelets on the Interval." Southwest Theoretical Chemistry Conference, College Station, TX. (November 2000)    "Quantum Signatures of Unstable Dynamics in the Photodissociation of Ozon." IMACS Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, GA. (Apr. 1999)    "Quantum Signatures of Unstable Dynamics in the Photodissociation of Ozone." 3rd IMACSIEEE International Multiconference on Circuits, Systems, Communications and Computers, Athens, Greece. (July 1999) With C.W. Hsiao, L. D. Le, E. S. Lotfi, C. Kittrell, J. L. Kinsey    "Probing Molecular Orientation and Alignment through Degenerate FourWave Mixing Techniques." American Chemical Society Southwest Regional Meeting, Baton Rouge, LA, USA. (Nov 1998) With T. Muller, T. A. W. Wasserman, and P. H. Vaccaro    "Temperature Dependence and Dynamical Instability in the Hartley Absorption System in Ozone." American Chemical Society National Convention, Boston, MA, USA. (August 1998) With B.Y. Chang, C.W. Hsiao, L. Le, and J. L. Kinsey    "Wavelet Systems as Multiresolution Quantum Mechanical Bases." American Chemical Society National Conference, Dallas, TX, USA. (March 1998) With J. P. Modisette, P. J. Nordlander, and J. L. Kinsey    Workshops   "Wavelets in Quantum Dynamics, summer school lectures.." KINet Summer School on Mathematical and Computational Methods in Quantum Dynamics, University of Wisconsin, Madison, Wisconsin, August 1620, 2013.. (August 1619, 2013)  
Supervised Theses & Dissertations   Joshua Gibson, MS, Physics Density Matrix Calculation of Surface Enhanced Raman Scattering for Silver Nanoshells Coated with pMercaptoaniline. (2005) (Thesis Director)
  Ramiro Acevedo, Ph.D. Compact Support Wavelet Representations for Solution of Quantum and Electromagnetic Equations: Eigenvalues and Dynamics. (2010) (Thesis Director)

