User profiles for G. Spektor

Grisha Spektor

NIST- National Institute of Standards and Technology
Verified email at colorado.edu
Cited by 689

Revealing the subfemtosecond dynamics of orbital angular momentum in nanoplasmonic vortices

G Spektor, D Kilbane, AK Mahro, B Frank, S Ristok… - Science, 2017 - science.org
The ability of light to carry and deliver orbital angular momentum (OAM) in the form of optical
vortices has attracted much interest. The physical properties of light with a helical wavefront …

Metafocusing by a metaspiral plasmonic lens

G Spektor, A David, B Gjonaj, G Bartal, M Orenstein - Nano letters, 2015 - ACS Publications
… (f, g) Experimental NSOM results demonstrating the linear dichroism of the half-circles
lens … field patterns shown in Figure 1d,f,g. This is true for both linear polarization and the …

Orbital angular momentum in nanoplasmonic vortices

E Prinz, M Hartelt, G Spektor, M Orenstein… - ACS …, 2023 - ACS Publications
In the past decade, optical orbital angular momentum (OAM) has entered the field of
plasmonics in the form of surface-confined vortices, generating vast interest. Here we give an …

Short-range surface plasmonics: Localized electron emission dynamics from a 60-nm spot on an atomically flat single-crystalline gold surface

B Frank, P Kahl, D Podbiel, G Spektor, M Orenstein… - Science …, 2017 - science.org
… 5, we find v g ≈ 0.1c 0 ; however, note that a different platelet thickness modifies the coupling
… For thicker platelets, both the values of v p and v g have been found to be slightly higher. …

Mixing the light spin with plasmon orbit by nonlinear light-matter interaction in gold

G Spektor, D Kilbane, AK Mahro, M Hartelt, E Prinz… - Physical Review X, 2019 - APS
Transformation of light carrying spin angular momentum (SAM) to optical field vortices
carrying orbital angular momentum (OAM) has been of wide interest in recent years. The …

Key role of drug shops and pharmacies for family planning in urban Nigeria and Kenya

M Corroon, E Kebede, G Spektor… - Global Health: Science …, 2016 - ghspjournal.org
… Cite this article as: Corroon M, Kebede E, Spektor G, Speizer I. Key role of drug shops
and pharmacies for family planning in urban nigeria and kenya. Glob Health Sci Pract. …

Functional meta lenses for compound plasmonic vortex field generation and control

E Prinz, G Spektor, M Hartelt, AK Mahro… - Nano Letters, 2021 - ACS Publications
Surface plasmon polaritons carrying orbital angular momentum are of great fundamental
and applied interest. However, common approaches for their generation are restricted to …

Universal visible emitters in nanoscale integrated photonics

G Spektor, D Carlson, Z Newman, JL Skarda, N Sapra… - Optica, 2023 - opg.optica.org
… (f) Experimental measurement of the far-field intensity distribution and (g) circular polarization
purity as well as the Poincaré sphere (h) showing the polarization distribution within the …

Developmental endothelial locus-1 (Del-1), a novel angiogenic protein: its role in ischemia

HKV Ho, JJ Jang, S Kaji, G Spektor, A Fong, P Yang… - Circulation, 2004 - Am Heart Assoc
… The mice weighed 20 to 25 g and were maintained as described previously. … Mice were
anesthetized with 4% chloral hydrate (intraperitoneal administration, 0.1 ml/10 g body weight). …

Orbital angular momentum multiplication in plasmonic vortex cavities

G Spektor, E Prinz, M Hartelt, AK Mahro… - Science …, 2021 - science.org
… We acknowledge G. Ankonina for the sputtering of gold, J. Schnider for help with thermal …
We acknowledge G. Ankonina for the sputtering of gold, J. Schnider for help with thermal oxide …