Vartkess A. ApkarianProfessor, Chemistry |
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Research Interests |
Chemical Physics | |
| URL | www.chem.uci.edu/~aapkaria/ | |
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Academic Distinctions |
1983 Camille and Henry Dreyfus Foundation Award 1990 Alfred P. Sloan Fellow 1994 Elected Fellow of the American Physical Society 1996 Alexander von Humboldt Award 2004 AAAS Fellow 2006 UCI Distinguished Faculty Award for Teaching 2007 USC Distinguished Alumnus |
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| Appointments |
Northwestern University Cornell University Joined UCI faculty in 1983 |
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Research Abstract |
Understanding of photophysics and chemical dynamics in condensed media is the major thrust of our research. Both experimental and theoretical studies are conducted on what may be regarded as model systems: systems, such as doped van der Waals solids and fluids, which are simple enough to afford a first principles description of elementary photoprocesses. The challenge in understanding dynamics in condensed media arises from the many-body nature of interactions. Collective electronic and nuclear degrees of freedom must be considered to describe even the simplest of chemical processes, such as the breaking or making of a bond. The development of global many-body potentials that are at once accurate, universal and economical, is a unifying theme in our work. The dynamical consequences of such interactions, is another theme, which is investigated through time frequency resolved spectroscopies using ultrafast lasers. Beside the preparation and interrogation of molecular coherences, quantum control as applied to molecular engineering and quantum computing are subjects that are pursued both theoretically and experimentally. The experimental studies invariably involve laser-based spectroscopic techniques that are implemented in both frequency and time domain, over the spectral range from far infrared to the deep ultraviolet. The time resolution of studies stretches to the femtosecond domain, a time scale that enables the observation of atomic motions on a freeze-frame basis. This provides the means for following and controlling chemistry as it evolves from reactants to products. To extract the desired atomistic level of understanding from detailed experimental observables, we invariably model the systems with explicit simulations. To this end, we have developed an arsenal of classical, semi-classical, and quantum simulation methods. |
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| Publications | "Interfacial Velocity Dependent Plasmon Damping in Colloidal Metallic Nanoparticles", Zadoyan, R., Seferyan, H. Y., Wark, A., Corn, R. M., Apkarian, V. A., J. Phys. Chem. C, 111, 10836 2007. | |
| "Dynamics and the breaking of a driven cage: I2 in solid Ar", Bihary, Z., Zadoyan, R., Karavitis, M., Apkarian, V. A., J. Chem. Phys. 120, 7576 2004. | ||
| "Vibrational Coherence of I2 in Solid Kr", Karavitis, M., Apkarian, V. A., J. Chem. Phys. 120, 292 2004. | ||
| "Time-domain analysis of electronic spectra in superfluid 4He", Eloranta, J., Seferyan, H., Apkarian, V. A., Chem. Phys. Lett. 396, 155 2004. | ||
| "Time-resolved CARS studies of vibrational coherences in the condensed phase: I2 in solid krypton", Karavitis, M., Goldschleger, I., Apkarian, V. A., Kumada, T., in Springer Series in Chemical Physics 79, Ultrafast Phenomena XIV, Kobayashi, Okada, Kobayashi, Nelson and De Silvestri, eds., pp. 377-379 (Springer-Verlag, Berlin) 2005. | ||
| "Quantum Coherent Dissipation: A glimpse of the 'cat'", Segale, D., Karavitis, M., Fredj, E., Apkarian, V. A., J. Chem. Phys. 122, 111104 2005. | ||
| "Time-resolved coherent anti-Stokes Raman-scattering measurements of I2 in solid Kr: Vibrational dephasing on the ground electronic state at 2.6-32K", Kiviniemi, T., Aumanen, J., Myllyperki, P., Apkarian, V. A., Pettersson, M., J. Chem. Phys. 123, 064509 2005. | ||
| "Nonresonant ionization of oxygen molecules by femtosecond pulses: Plasma dynamics studied by time-resolved terahertz spectroscopy", Mics, Z., Kadlec, F., Kuzel, P., Jungwirth, P., Bradforth, S., Apkarian, V. A., J. Chem. Phys. 123, 104310 2005. | ||
| "Quenched by ice: Transient grating measurements of vibronic dynamics in bromine-doped ice", Goldschleger, I. U., Senekerimyan, V., Krage, M. S., Seferyan, H., Janda, K. C., Apkarian, V. A., J. Chem. Phys. 124, 204507 2006. | ||
| "Quantum logic gates in iodine vapor using time-frequency resolved coherent anti-Stokes Raman scattering: a theoretical study", Glenn, D. R., Lidar, D. A., Apkarian, V. A., Molecular Phys. 104, 1249 2006. | ||
| "Transient Grating Measurements of Excitonic Dynamics in Single-Walled Carbon Nanotubes: The Dark Excitonic Bottleneck", Seferyan, H. Y., Nasr, M. B., Senekerimyan, V., Zadoyan, R., Collins, P., Apkarian, V. A., Nano Letters 6, 1757 2006. | ||
| "A Pixellated Window on Chemistry in Solids", Apkarian, V. A., Science, 313, 1747 2006. | ||
| "Spectroscopic Signatures of Halogens in Clathrate Hydrate Cages. 1. Bromine", Kerenskaya, G., Goldschleger, I. U., Apkarian, V. A., Janda, K. C., J. Phys. Chem. A, 110, 13792 2006. | ||
| "Vibrational dissipation and dephasing of I2(v=1-19) in solid Kr", Karavitis, M., Kumada, T., Goldschleger, I., Apkarian, V. A., Phys. Chem. Chem Phys. 7, 791 2005. | ||
| "Onset of Decoherence: Six-wave Mixing Measurements of Vibrational Decoherence on the Excited Electronic State of I2 in Solid Argon", Bihary Z., Karavitis, M., Apkarian, V. A., J. Chem. Phys. 120, 8144 2004. | ||
| "A Time Dependent Density Functional Treatment of Superfluid Dynamics: Equilibrium of the Electron Bubble in Superfluid 4He", Eloranta, J., Apkarian, V. A., J. Chem. Phys. 117, 10139 2002. | ||
| "A Direct Interrogation of Superfluidity on Molecular Scales", Benderskii, A. V., Eloranta, J., Zadoyan, R., Apkarian, V. A., J. Chem. Phys. 117, 1201 2002. | ||
| "The Manipulation of Massive Ro-Vibronic Superpositions Using Time-Frequency-Resolved Coherent Anti-Stokes Raman Scattering (TFRCARS): from Quantum Control to Computing", Zadoyan R., Kohen D., Lidar D., Apkarian V. A., Chem. Phys. 266, 323 2001. | ||
| "Semiclassical Molecular Dynamics Computation of Spontaneous Light Emission in the Condensed Phase", Ovchinnikov, M., Apkarian, V. A., Voth, G. A., J. Chem. Phys. 114, 7130 2001. | ||
| "Imaging the Molecular Rovibrational Coherence Through Time-Gated, Frequency-Resolved Coherent Anti-Stokes Raman Scattering", Zadoyan, R., Apkarian, V. A., Chem. Phys. Lett. 326, 1 2000. | ||
| Link to this profile | http://www.faculty.uci.edu/profile.cfm?faculty_id=2100 | |
| Last updated | 07/23/2007 | |
