Enhanced THz-to-IR emission from gas-surrounded metallic nanostructures by femtosecond laser irradiation

Liangliang Zhang; Tong Wu; Hang Zhao; Cunlin Zhang; Wei Jin; X. C. Zhang

doi:10.1016/j.optcom.2016.07.053

Enhanced THz-to-IR emission from gas-surrounded metallic nanostructures by femtosecond laser irradiation

Liangliang Zhang, Tong Wu, Hang Zhao, Cunlin Zhang, Wei Jin, X. C. Zhang

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

1 Citation (Scopus)

Abstract

Enhanced terahertz-to-infrared (THz-to-IR) emission from gas-surrounded nanostructured metal films as a result of femtosecond laser irradiation is systematically investigated using selected gases. The dependencies of the THz-to-IR power on the gas species, gas pressure, and pump optical power are studied for Ar, N2, Ne, and He. The experimental results reveal that the power of the THz-to-IR emission is related to the thermal conductivity of the gas in question. Moreover, the THz-to-IR emission power is dramatically enhanced when the gas pressure is close to zero.

Original language	English
Pages (from-to)	414-417
Number of pages	4
Journal	Optics Communications
Volume	381
DOIs	https://doi.org/10.1016/j.optcom.2016.07.053
Publication status	Published - 15 Dec 2016

Keywords

Nanostructured materials
Surface plasmons
Thermal effect

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

More information

10.1016/j.optcom.2016.07.053

http://hdl.handle.net/10397/93972

Cite this

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title = "Enhanced THz-to-IR emission from gas-surrounded metallic nanostructures by femtosecond laser irradiation",

abstract = "Enhanced terahertz-to-infrared (THz-to-IR) emission from gas-surrounded nanostructured metal films as a result of femtosecond laser irradiation is systematically investigated using selected gases. The dependencies of the THz-to-IR power on the gas species, gas pressure, and pump optical power are studied for Ar, N2, Ne, and He. The experimental results reveal that the power of the THz-to-IR emission is related to the thermal conductivity of the gas in question. Moreover, the THz-to-IR emission power is dramatically enhanced when the gas pressure is close to zero.",

keywords = "Nanostructured materials, Surface plasmons, Thermal effect",

author = "Liangliang Zhang and Tong Wu and Hang Zhao and Cunlin Zhang and Wei Jin and Zhang, {X. C.}",

year = "2016",

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doi = "10.1016/j.optcom.2016.07.053",

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journal = "Optics Communications",

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T1 - Enhanced THz-to-IR emission from gas-surrounded metallic nanostructures by femtosecond laser irradiation

AU - Zhang, Liangliang

AU - Wu, Tong

AU - Zhao, Hang

AU - Zhang, Cunlin

AU - Jin, Wei

AU - Zhang, X. C.

PY - 2016/12/15

Y1 - 2016/12/15

N2 - Enhanced terahertz-to-infrared (THz-to-IR) emission from gas-surrounded nanostructured metal films as a result of femtosecond laser irradiation is systematically investigated using selected gases. The dependencies of the THz-to-IR power on the gas species, gas pressure, and pump optical power are studied for Ar, N2, Ne, and He. The experimental results reveal that the power of the THz-to-IR emission is related to the thermal conductivity of the gas in question. Moreover, the THz-to-IR emission power is dramatically enhanced when the gas pressure is close to zero.

AB - Enhanced terahertz-to-infrared (THz-to-IR) emission from gas-surrounded nanostructured metal films as a result of femtosecond laser irradiation is systematically investigated using selected gases. The dependencies of the THz-to-IR power on the gas species, gas pressure, and pump optical power are studied for Ar, N2, Ne, and He. The experimental results reveal that the power of the THz-to-IR emission is related to the thermal conductivity of the gas in question. Moreover, the THz-to-IR emission power is dramatically enhanced when the gas pressure is close to zero.

KW - Nanostructured materials

KW - Surface plasmons

KW - Thermal effect

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U2 - 10.1016/j.optcom.2016.07.053

DO - 10.1016/j.optcom.2016.07.053

M3 - Journal article

SN - 0030-4018

VL - 381

SP - 414

EP - 417

JO - Optics Communications

JF - Optics Communications

ER -

Enhanced THz-to-IR emission from gas-surrounded metallic nanostructures by femtosecond laser irradiation

Abstract

Keywords

ASJC Scopus subject areas

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