Interchannel optical coupling within arrays of linear microplasmas generated in 25-200μm wide glass channels

S. H. Sung; I. C. Hwang; S. J. Park; J. G. Eden

doi:10.1063/1.3505498

Interchannel optical coupling within arrays of linear microplasmas generated in 25-200μm wide glass channels

S. H. Sung, I. C. Hwang, S. J. Park, J. G. Eden

Electrical and Computer Engineering

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

Abstract

Axially uniform microcavity plasmas with widths of 25-200 μm and aspect ratios as high as 500 have been generated in glass microchannels. Sealed in cavities 2.5 cm in length and having a cross-sectional area of 2.5× 10² - 10⁴ μm², these microplasmas operate in the abnormal glow regime with neutral particle temperatures of 365-420 K when the rare gas pressure is 200-700 Torr. In arrays as large as ten parallel microchannel plasmas, evidence of optical coupling among the channels is observed in the form of strongly enhanced atomic emission which is attributed to electron heating driven by the resonant absorption of scattered radiation.

Original language	English (US)
Article number	231502
Journal	Applied Physics Letters
Volume	97
Issue number	23
DOIs	https://doi.org/10.1063/1.3505498
State	Published - Dec 6 2010

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Physics and Astronomy (miscellaneous)

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10.1063/1.3505498

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title = "Interchannel optical coupling within arrays of linear microplasmas generated in 25-200μm wide glass channels",

abstract = "Axially uniform microcavity plasmas with widths of 25-200 μm and aspect ratios as high as 500 have been generated in glass microchannels. Sealed in cavities 2.5 cm in length and having a cross-sectional area of 2.5× 102 - 104 μm2, these microplasmas operate in the abnormal glow regime with neutral particle temperatures of 365-420 K when the rare gas pressure is 200-700 Torr. In arrays as large as ten parallel microchannel plasmas, evidence of optical coupling among the channels is observed in the form of strongly enhanced atomic emission which is attributed to electron heating driven by the resonant absorption of scattered radiation.",

author = "Sung, {S. H.} and Hwang, {I. C.} and Park, {S. J.} and Eden, {J. G.}",

note = "Funding Information: The technical assistance of Y. H. Kim and the support of this work by the U. S. Air Force Office of Scientific Research as well as the National Science Foundation are gratefully acknowledged. ",

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T1 - Interchannel optical coupling within arrays of linear microplasmas generated in 25-200μm wide glass channels

AU - Sung, S. H.

AU - Hwang, I. C.

AU - Park, S. J.

AU - Eden, J. G.

N1 - Funding Information: The technical assistance of Y. H. Kim and the support of this work by the U. S. Air Force Office of Scientific Research as well as the National Science Foundation are gratefully acknowledged.

PY - 2010/12/6

Y1 - 2010/12/6

N2 - Axially uniform microcavity plasmas with widths of 25-200 μm and aspect ratios as high as 500 have been generated in glass microchannels. Sealed in cavities 2.5 cm in length and having a cross-sectional area of 2.5× 102 - 104 μm2, these microplasmas operate in the abnormal glow regime with neutral particle temperatures of 365-420 K when the rare gas pressure is 200-700 Torr. In arrays as large as ten parallel microchannel plasmas, evidence of optical coupling among the channels is observed in the form of strongly enhanced atomic emission which is attributed to electron heating driven by the resonant absorption of scattered radiation.

AB - Axially uniform microcavity plasmas with widths of 25-200 μm and aspect ratios as high as 500 have been generated in glass microchannels. Sealed in cavities 2.5 cm in length and having a cross-sectional area of 2.5× 102 - 104 μm2, these microplasmas operate in the abnormal glow regime with neutral particle temperatures of 365-420 K when the rare gas pressure is 200-700 Torr. In arrays as large as ten parallel microchannel plasmas, evidence of optical coupling among the channels is observed in the form of strongly enhanced atomic emission which is attributed to electron heating driven by the resonant absorption of scattered radiation.

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Interchannel optical coupling within arrays of linear microplasmas generated in 25-200μm wide glass channels

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