Analysis of the light transmission through nano-apertures on plateau pyramid

Choi, S. S.; Suwal, O. K.; Jha, V. K.; Kim, D.W.; Park, M.J.

doi:10.1016/j.cap.2008.08.051

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…However, the tiny nano-aperture with its diameter of ∼10 nm or less would have negligible optical transmission from Bethe's law; T ∼ (d/λ). 2 Therefore, optical transmission through the nano-aperture should be enhanced either by providing the groove patterns or periodic arrays. [2][3][4][5] The portable optical detection device for single molecule analysis by using a nanoscale aperture or the tiny nanopore with ∼10 0 nm diameter has yet to be fabricated.…”

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confidence: 99%

“…We previously reported fabrication of the nano-aperture surrounded by the periodic patterns on pyramidal probes to improve the low transmittance of light through the nanosize aperture. 2,4,5 We have also fabricated the nanopore on the diffused membrane composed with Au and carbon atoms, with its diameter ranging from 10 nm to 3 nm inside the FIB drilled aperture by using various surface modifications. [6][7][8] Under the irradiation of intense high energy electron beam, diffusion of gold atoms and carbon atoms would occur and form the binary mixture membrane.…”

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confidence: 99%

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Fabrication of the Au Nano-Aperture Array Platform for Single Molecule Analysis

Choi

Park

Lee

et al. 2020

ECS J. Solid State Sci. Technol.

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We have fabricated the Au nano-aperture array platforms on the Au films for single molecule analysis. Previously, we reported fabrication of the 200 nm wide double slits with various separations between two nanoslits, and the optical characteristics. In this paper, we will address the optical characteristics of various Au aperture platfoms; the double slits with a 50 nm opening width, the nanoslit array with its opening width less than 100 nm, and the circular type nano-aperture by using 30 keV focused Ga ion beam techniques, along with Au nanopore formation under the high energy electron beam irradiations at 200 keV. For the slit width less than 100 nm, we observed the surface plasmon polariton (SPP)-mediated intraband transmission peak at ∼500 nm, and the SPP-coupled peak around ∼650 nm. The optical intensities are measured to be dependent upon the size of the nano-aperture, the opening width of the slit, and the thickness of the Au film. For a 30 nm slit width, the broadband emission ranging from ∼600 nm to 800 nm were also observed. The fabricated Au plasmonic platforms can be utilized as single molecule bio-sensor.

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confidence: 99%

mentioning

confidence: 99%

Fabrication of the Au Nano-Aperture Array Platform for Single Molecule Analysis

Choi

Park

Lee

et al. 2020

ECS J. Solid State Sci. Technol.

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“…Melting temperature of Au clusters is also dependent upon the size, geometrical shape, and numbers of Au atoms in the cluster through so-called magic numbers [18][19][20]. We previously reported fabrication of the nano-aperture surrounded by the periodic patterns on pyramidal probes to improve the low transmittance of light through the nanosize aperture [21][22][23]. In addition, we have also fabricated the nanopore with its diameter ranging from 10 to 3 nm inside the FIB drilled aperture by using various surface treatments including electron beam irradiations and ion beam irradiation [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Nanopore Fabrication for Single Molecule Bio Sensor Using Electron Beam Irradiation

et al. 2018

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About sixty years ago, the biological cell counter with an electrical detection technique through a micrometer size orifice was invented by Dr. Coulter. Recently, the ultrafast portable pore device (MinION) with an electrical detection technique was manufactured by Oxford Nanopore Technology. However, high error rates possibly from the electrical double layer formed in the pore channel is initially reported in several journals. Furthermore, considering the fact that the optical detection technique is being utilized in the biosensors, the optical pore device can be an excellent candidate for the next generation single molecule sensor. We will report the fabrication process of the plasmonic optical nanopores.

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“…11 We previously reported fabrication of the nano-aperture surrounded by the periodic patterns on the outside of the pyramidal probes to improve the low transmittance of light through the nanosize aperture. [12][13][14] Huge optical intensity enhancement of ∼10 3 -fold increase through a pyramidal aperture has been reported for the groove patterns whose pitch matched the surface plasmon wavelength, which can be attributed to the coupling of a backward diffracted surface wave with the patterned grooves on the exit side of the pyramid. Even without a nano-aperture on top of the an elliptically patterned pyramid, a huge 10 3 -fold increase is also reported in the transmitted optical power due to the strong coupling of the surface plasmonic modes with the photonic modes of the input beams.…”

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confidence: 95%

Fabrication of Plasmonic Optical Nanopore Platform for Single Molecule Sensing

Choi

Lee

et al. 2020

J. Electrochem. Soc.

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Recently there have been significant interests about fabrication of optical nanopore with its diameter range of 5 nm to 10 nm for single molecule analysis and manipulation. However, due to very small amount of the optical intensity through the tiny size of the nano-aperture much smaller than the optical wavelength, the optical intensity enhancement via plasmonic effect by using pore array or periodic groove patterns have been tried. Also, the double slits with nanoscale width are reported to provide the constructive periodic modulation for the transverse-magnetic (TM) wave mode. In this report, the nanoscale double slit with an Au aperture array have been fabricated and optically characterized.

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Analysis of the light transmission through nano-apertures on plateau pyramid

Cited by 9 publications

References 10 publications

Fabrication of the Au Nano-Aperture Array Platform for Single Molecule Analysis

Fabrication of the Au Nano-Aperture Array Platform for Single Molecule Analysis

Plasmonic Nanopore Fabrication for Single Molecule Bio Sensor Using Electron Beam Irradiation

Fabrication of Plasmonic Optical Nanopore Platform for Single Molecule Sensing

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