Ultrafast optical control of terahertz surface plasmons in subwavelength hole arrays at room temperature

Abul Kalam Azad; Houtong Chen; Satish R. Kasarla; Antoinette Jane Taylor; Zhen Tian; Xinchao Lu; Weili Zhang; Hong Lu; Arthur C. Gossard; John F. O'Hara

doi:10.1063/1.3168510

Ultrafast optical control of terahertz surface plasmons in subwavelength hole arrays at room temperature

Abul Kalam Azad
, Houtong Chen
, Satish R. Kasarla
, Antoinette Jane Taylor
, Zhen Tian
, Xinchao Lu
, Weili Zhang
, Hong Lu
, Arthur C. Gossard
, John F. O'Hara

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

We demonstrate optical control of surface plasmon enhanced resonant terahertz transmission in two-dimensional subwavelength metallic hole arrays fabricated on gallium arsenide based substrates. Optically pumping the arrays creates a conductive layer in the substrate, reducing the terahertz transmission amplitude of both the resonant mode and the direct transmission. Under low optical fluence, the terahertz transmission is more greatly affected by resonance damping than by propagation loss in the substrate. An ErAs:GaAs nanoisland superlattice substrate is shown to allow ultrafast control with a switching recovery time of ∼10 ps.

Original language	English
Article number	011105
Journal	Applied Physics Letters
Volume	95
Issue number	1
DOIs	https://doi.org/10.1063/1.3168510
State	Published - Jul 20 2009

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title = "Ultrafast optical control of terahertz surface plasmons in subwavelength hole arrays at room temperature",

abstract = "We demonstrate optical control of surface plasmon enhanced resonant terahertz transmission in two-dimensional subwavelength metallic hole arrays fabricated on gallium arsenide based substrates. Optically pumping the arrays creates a conductive layer in the substrate, reducing the terahertz transmission amplitude of both the resonant mode and the direct transmission. Under low optical fluence, the terahertz transmission is more greatly affected by resonance damping than by propagation loss in the substrate. An ErAs:GaAs nanoisland superlattice substrate is shown to allow ultrafast control with a switching recovery time of ∼10 ps.",

author = "Azad, \{Abul Kalam\} and Houtong Chen and Kasarla, \{Satish R.\} and Taylor, \{Antoinette Jane\} and Zhen Tian and Xinchao Lu and Weili Zhang and Hong Lu and Gossard, \{Arthur C.\} and O'Hara, \{John F.\}",

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doi = "10.1063/1.3168510",

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T1 - Ultrafast optical control of terahertz surface plasmons in subwavelength hole arrays at room temperature

AU - Azad, Abul Kalam

AU - Chen, Houtong

AU - Kasarla, Satish R.

AU - Taylor, Antoinette Jane

AU - Tian, Zhen

AU - Lu, Xinchao

AU - Zhang, Weili

AU - Lu, Hong

AU - Gossard, Arthur C.

AU - O'Hara, John F.

PY - 2009/7/20

Y1 - 2009/7/20

N2 - We demonstrate optical control of surface plasmon enhanced resonant terahertz transmission in two-dimensional subwavelength metallic hole arrays fabricated on gallium arsenide based substrates. Optically pumping the arrays creates a conductive layer in the substrate, reducing the terahertz transmission amplitude of both the resonant mode and the direct transmission. Under low optical fluence, the terahertz transmission is more greatly affected by resonance damping than by propagation loss in the substrate. An ErAs:GaAs nanoisland superlattice substrate is shown to allow ultrafast control with a switching recovery time of ∼10 ps.

AB - We demonstrate optical control of surface plasmon enhanced resonant terahertz transmission in two-dimensional subwavelength metallic hole arrays fabricated on gallium arsenide based substrates. Optically pumping the arrays creates a conductive layer in the substrate, reducing the terahertz transmission amplitude of both the resonant mode and the direct transmission. Under low optical fluence, the terahertz transmission is more greatly affected by resonance damping than by propagation loss in the substrate. An ErAs:GaAs nanoisland superlattice substrate is shown to allow ultrafast control with a switching recovery time of ∼10 ps.

UR - https://www.scopus.com/pages/publications/67650507863

U2 - 10.1063/1.3168510

DO - 10.1063/1.3168510

M3 - Article

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 1

M1 - 011105

ER -

Ultrafast optical control of terahertz surface plasmons in subwavelength hole arrays at room temperature

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