Index Catalog // ScholarsArchive@OSU

Optimizing the superlens: manipulating geometry to enhance the resolution

Creator:: Podolskiy, Viktor A., Kuhta, Nicholas A., and Milton, Graeme W.
Abstract:: We analyze the performance of a planar lens based on realistic negative index material in a generalized geometry. We demonstrate that the conventional superlens design (where the lens is centered between the object and the image) is not optimal from the resolution point of view, develop an analytical expression for...
Resource Type:: Article
Full Text:: superlens: Manipulating geometry to enhance the resolution Viktor A. Podolskiya� and Nicholas A. Kuhta

Active metamaterials: sign of refractive index and gain-assisted dispersion management

Creator:: Govyadinov, Alexander A., Podolskiy, Viktor A., and Noginov, M.
Abstract:: We derive an approach to determine the causal direction of wavevectors of modes in optical metamaterials, which, in turn, determines signs of refractive index and impedance as a function of real and imaginary parts of dielectric permittivity and magnetic permeability. We use the developed technique to demonstrate that the interplay...
Resource Type:: Article
Full Text:: -assisted dispersion management Alexander A. Govyadinov and Viktor A. Podolskiya� Physics Department

Nonlocal effects in effective-medium response of nanolayered metamaterials

Creator:: Elser, Justin, Podolskiy, Viktor A., Salakhutdinov, Ildar, and Avrutsky, Ivan
Abstract:: The authors analyze electromagnetic modes in multilayered nanocomposites and demonstrate that the response of a majority of realistic layered structures is strongly affected by the nonlocal effects originating from strong field oscillations across the system, and is not described by conventional effective-medium theories. They develop the analytical description of the...
Resource Type:: Article
Full Text:: nanolayered metamaterials Justin Elser and Viktor A. Podolskiya� Department of Physics, Oregon State

Nanowire metamaterials with extreme optical anisotropy

Creator:: Elser, Justin, Wangberg, Robyn, Podolskiy, Viktor A., and Narimanov, Evgenii E.
Abstract:: The authors study perspectives of nanowire metamaterials for negative-refraction waveguides, high-performance polarizers, and polarization-sensitive biosensors. They demonstrate that the behavior of these composites is strongly influenced by the concentration, distribution, and geometry of the nanowires, derive an analytical description of electromagnetism in anisotropic nanowire-based metamaterials, and explore the limitations of...
Resource Type:: Article
Full Text:: Justin Elser, Robyn Wangberg, and Viktor A. Podolskiy Physics Department, 301 Weniger Hall, Oregon State

Midinfrared semiconductor optical metamaterials

Creator:: Hoffman, Anthony J., Sridhar, Aishwarya, Braun, Phillip X., Alekseyev, Leonid, Howard, Scott S., Franz, Kale J., Cheng, Liwei, Choa, Fow-Sen, Sivco, Deborah L, Podolskiy, Viktor A., Narimanov, Evgenii E., and Gmachl, Claire
Abstract:: We report on a novel class of semiconductor metamaterials that employ a strongly anisotropic dielectric function to achieve negative refraction in the midinfrared region of the spectrum, ~8.5–13 μm. We present two types of metamaterials, layered highly doped/undoped heterostructures and quantum well superlattices that are highly anisotropic. Contrary to other...
Resource Type:: Article
Full Text:: ,1 Liwei Cheng,3 Fow-Sen Choa,3 Deborah L. Sivco,4 Viktor A. Podolskiy,5 Evgenii E. Narimanov,1,2

Primary prevention of fishing vessel disasters: Evaluation of a United States Coast Guard policy intervention

Creator:: Lucas, Devin L., Kincl, Laurel D., Bovbjerg, Viktor E., Branscum, Adam J., and Lincoln, Jennifer M.
Abstract:: Primary injury prevention strategies are needed to improve worker safety in the fishing industry by reducing the occurrence of vessel disasters. In 2006, the United States Coast Guard (USCG) implemented a novel safety policy intervention for two fleets of freezer-trawlers and freezer-longliners in Alaska. The Alternate Compliance and Safety Agreement...
Resource Type:: Article
Full Text:: Coast Guard policy intervention Devin L. Lucas a,b,n, Laurel D. Kincl a, Viktor E. Bovbjerg a, Adam J

Work-Related Traumatic Injuries Onboard Freezer-Trawlers and Freezer-Longliners Operating in Alaskan Waters during 2001-2012

Creator:: Lucas, Devin L., Kincl, Laurel D., Bovbjerg, Viktor E., Lincoln, Jennifer M., and Branscum, Adam J.
Abstract:: BACKGROUND: Workers onboard freezer-trawl (FT) and freezer-longline (FL) vessels in Alaska may be at high risk for fatal and non-fatal injuries. METHODS: Traumatic occupational injuries onboard vessels in the FT and FL fleets were identified through two government data sources. RESULTS: The annual risk of fatal injuries was 125 per...
Resource Type:: Article
Full Text:: ., Bovbjerg, V. E., Lincoln, J. M., & Branscum, A. J. (2014). Work-related traumatic injuries onboard freezer

Patterns of Yoga Practice and Physical Activity Following a Yoga Intervention for Adults With or at Risk for Type 2 Diabetes

Creator:: Alexander, Gina, Innes, Kim E., Bourguignon, Cheryl, Bovbjerg, Viktor E., Kulbok, Pamela, and Taylor, Ann Gill
Abstract:: Background—The current study described patterns of yoga practice and examined differences in physical activity over time between individuals with or at risk for type 2 diabetes who completed an 8-week yoga intervention compared with controls. Methods—A longitudinal comparative design measured the effect of a yoga intervention on yoga practice and...
Resource Type:: Article
Full Text:: Patterns of Yoga Practice and Physical Activity Following a Yoga

Terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes

Creator:: Paul, M. J., Kuhta, N. A., Tomaino, J. L., Jameson, A. D., Maizy, L. P., Sharf, T., Rupesinghe, N. L., Teo, K. B. K., Inampudi, S., Podolskiy, V. A., Minot, E. D., and Lee, Yun-Shik
Abstract:: We demonstrate time-resolved terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes. The angle-resolved transmission measurements reveal anisotropic characteristics of the terahertz electrodynamics in multi-walled carbon nanotubes. The anisotropy is, however, unexpectedly weak: the ratio of the tube-axis conductivity to the transverse conductivity, sigma[subscript z]/sigma[subscript xy] [similar or equal to]...
Resource Type:: Article
Full Text:: . Sharf,1 N. L. Rupesinghe,2 K. B. K. Teo,2 S. Inampudi,3 V. A. Podolskiy,3 E. D. Minot,1 and Yun-Shik

Coarse woody debris in forest regions of Russia

Creator:: Krankina, Olga N., Harmon, Mark E., Kukuev, Yuri A., Treyfeld, Rudolf F., Kashpor, Nikolai N., Kresnov, Vladimir G., Skudin, Viktor M., Protasov, Nikolai A., Yatskov, Mikhail, Spycher, Gody, and Povarov, Ewgeni D.
Abstract:: To assess regional stores of coarse woody debris (CWD) in seven major forest regions of Russia, we combined data collected as part of the routine forest inventory with measurements in 1044 sample plots and the results of density sampling of 922 dead trees. The stores of CWD in the western...
Resource Type:: Article
Full Text:: , Mark E. Harmon, Yuri A. Kukuev, Rudolf F. Treyfeld, Nikolai N. Kashpor, Vladimir G. Kresnov, Viktor M

ScholarsArchive@OSU

Optimizing the superlens: manipulating geometry to enhance the resolution

Active metamaterials: sign of refractive index and gain-assisted dispersion management

Nonlocal effects in effective-medium response of nanolayered metamaterials

Nanowire metamaterials with extreme optical anisotropy

Midinfrared semiconductor optical metamaterials

Primary prevention of fishing vessel disasters: Evaluation of a United States Coast Guard policy intervention

Work-Related Traumatic Injuries Onboard Freezer-Trawlers and Freezer-Longliners Operating in Alaskan Waters during 2001-2012

Patterns of Yoga Practice and Physical Activity Following a Yoga Intervention for Adults With or at Risk for Type 2 Diabetes

Terahertz transmission ellipsometry of vertically aligned multi-walled carbon nanotubes

Coarse woody debris in forest regions of Russia

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search