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Optical orbital angular momentum conservation during the transfer process from plasmonic vortex lens to light.

Yu H, Zhang H, Wang Y, Han S, Yang H, Xu X, Wang Z, Petrov V, Wang J - Sci Rep (2013)

Bottom Line: We demonstrate the optical orbital angular momentum conservation during the transfer process from subwavelength plasmonic vortex lens (PVLs) to light and the generating process of surface plasmon polaritons (SPPs).The angular momentum of twisting SP electromagnetic field is tunable by the twisted metal/dielectric interfaces of PVLs and angular momentum of illuminating singular light.This work may open the door for several possible applications of SP vortices in subwavelength region.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.

ABSTRACT
We demonstrate the optical orbital angular momentum conservation during the transfer process from subwavelength plasmonic vortex lens (PVLs) to light and the generating process of surface plasmon polaritons (SPPs). Illuminating plasmonic vortex lenses with beams carrying optical orbital angular momentum, the SP vortices with orbital angular momentum were generated and inherit the optical angular momentum of light beams and PVLs. The angular momentum of twisting SP electromagnetic field is tunable by the twisted metal/dielectric interfaces of PVLs and angular momentum of illuminating singular light. This work may open the door for several possible applications of SP vortices in subwavelength region.

No MeSH data available.


Related in: MedlinePlus

Designed plasmonic vortex lenses.(a), (b) and (c) The theoretical curves of the gold/quartz interface with m = 4, 7 and 10, respectively, calculated with eq.3. (d), (e) and (f) The designed PVLs with m = 4, 7 and 10, respectively.
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f5: Designed plasmonic vortex lenses.(a), (b) and (c) The theoretical curves of the gold/quartz interface with m = 4, 7 and 10, respectively, calculated with eq.3. (d), (e) and (f) The designed PVLs with m = 4, 7 and 10, respectively.

Mentions: The detailed calculation for the design of PVLs and the designed PVLs with m = 4, 7 and 10 are available in Fig. 5. Analogous to the right- and left-handed rotating polarized light, the PVL slit patterns correspond to right-handed rotation looking from the bottom. The generated pattern of the SP vortices was directly recorded by a charge-coupled device (CCD).


Optical orbital angular momentum conservation during the transfer process from plasmonic vortex lens to light.

Yu H, Zhang H, Wang Y, Han S, Yang H, Xu X, Wang Z, Petrov V, Wang J - Sci Rep (2013)

Designed plasmonic vortex lenses.(a), (b) and (c) The theoretical curves of the gold/quartz interface with m = 4, 7 and 10, respectively, calculated with eq.3. (d), (e) and (f) The designed PVLs with m = 4, 7 and 10, respectively.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3824164&req=5

f5: Designed plasmonic vortex lenses.(a), (b) and (c) The theoretical curves of the gold/quartz interface with m = 4, 7 and 10, respectively, calculated with eq.3. (d), (e) and (f) The designed PVLs with m = 4, 7 and 10, respectively.
Mentions: The detailed calculation for the design of PVLs and the designed PVLs with m = 4, 7 and 10 are available in Fig. 5. Analogous to the right- and left-handed rotating polarized light, the PVL slit patterns correspond to right-handed rotation looking from the bottom. The generated pattern of the SP vortices was directly recorded by a charge-coupled device (CCD).

Bottom Line: We demonstrate the optical orbital angular momentum conservation during the transfer process from subwavelength plasmonic vortex lens (PVLs) to light and the generating process of surface plasmon polaritons (SPPs).The angular momentum of twisting SP electromagnetic field is tunable by the twisted metal/dielectric interfaces of PVLs and angular momentum of illuminating singular light.This work may open the door for several possible applications of SP vortices in subwavelength region.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.

ABSTRACT
We demonstrate the optical orbital angular momentum conservation during the transfer process from subwavelength plasmonic vortex lens (PVLs) to light and the generating process of surface plasmon polaritons (SPPs). Illuminating plasmonic vortex lenses with beams carrying optical orbital angular momentum, the SP vortices with orbital angular momentum were generated and inherit the optical angular momentum of light beams and PVLs. The angular momentum of twisting SP electromagnetic field is tunable by the twisted metal/dielectric interfaces of PVLs and angular momentum of illuminating singular light. This work may open the door for several possible applications of SP vortices in subwavelength region.

No MeSH data available.


Related in: MedlinePlus