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

Choi, Seong Soo; Park, Myoung Jin; Han, Chul Hee; Oh, Sae-Joong; Kim, Hyun-Tae; Choi, Soo Bong; Kim, Yong−Sang

doi:10.1149/08509.0069ecst

Cited by 6 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also fabricated the nanoslit array with its opening width ranging from 100 nm to ~ 10 nm using 30 keV Ga FIB. The plasmonic effect from the nanoslit array is well known [29][30][31]. Nanoslit fabrication with an opening less than 50 nm is much easier than the circular-type aperture with a diameter of 50 nm or less.…”

Section: Resultsmentioning

confidence: 99%

“…Fabrication of plasmonic nanopore on a pyramid and nanoscale double slits is previously investigated [5][6][7][29][30][31]. It is reported that the light transmission through a conical type aperture is dependent on the polarization and aperture size for ka << 1, where k is the wave vector while a is the radius of the circular aperture [32,33].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Toward Next Generation Plasmonic Nanopore Slit Platform with a ~10 nm Slit-Width

Choi¹,

Bae²,

Lee³

et al. 2021

RPM

Self Cite

View full text Add to dashboard Cite

We fabricated various nanoaperture plasmonic platforms for single-molecule detection. We fabricated nanoapertures like nanopores on a pyramid and nanoslits on an Au flat membrane using a Ga ion focused ion beam drilling technique, followed by irradiating with a high energy electron beam, dependent on the electron beam current density to obtain nanoapertures with a few nanometer sizes (circular nanopore, nanoslit pores). We examined their optical characteristics with varying aperture sizes and sample thicknesses. We obtained broad emission spectra in the visible and infrared region from the (7 x 7) slit array and a sharp, strong infrared emission peak from the Au nanoparticle on the substrate. The fabricated Au platform with ~10 nm nanometer opening can be employed as a single-molecule sensor and an infrared thermal emission device.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toward Next Generation Plasmonic Nanopore Slit Platform with a ~10 nm Slit-Width

Choi¹,

Bae²,

Lee³

et al. 2021

RPM

Self Cite

View full text Add to dashboard Cite

show abstract

“…Fabrication of plasmonic nano-pore on pyramid and double nanoscale double slits is previously examined [5,6,[20][21][22]. Light transmission through the conical type aperture dependent upon the polarization and aperture size for ka << 1 is well documented, where k is the wave vector and a is the radius of the circular aperture [23,24].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Various Plasmonic Nano-aperture Platforms with a ~10 nm Width

Choi¹,

Kim²,

Park³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

We fabricated the nano-aperture plasmonic platforms for single molecule detection and other various applications such as infrared thermal emission device. The nano-apertures including the nanopores on the pyramid, and the nano-slits on the Au flat membrane were fabricated using a Ga ion focused ion beam drilling technique, followed by high energy electron beam irradiations dependent upon the electron beam current density. The nanopores with a few nanometer size and the nanoslit array with order of ~ 100 nm width were fabricated. Optical characteristics for the various nanoslits were examined dependent upon the slit opening width and sample thickness. The broad emission spectra from the (7x 7) slit array are obtained from spp-mediated emission in the visible and infrared region. A sharp strong infrared emission peak is also obtained due to Au nanoparticle. The fabricated Au platform can be utilized as single molecule sensor and infrared thermal emission device.

show abstract

“…We have also fabricated the optical nanopore with its diameter ranging from 10 nm to 3 nm on the on the flat Au thin membrane by using various surface modifications. [15][16][17][18][19][20] Au-aperture with its diameter ranging from 50 nm to 100 nm was initially drilled by 30 keV Ga focused ion beam technique (FIB), then by using various electron beam irradiations such as field emission electron beam microscopy (FESEM) and transmission electron beam microscopy (TEM), a nanopore with its diameter of 5 nm was formed on the diffused membrane inside the FIB-drilled Au aperture. Optical intensity measurements did not reveal any differences between through the nano-aperture without a diffused Au-C membrane, and through the nano-aperture with a diffused membrane.…”

mentioning

confidence: 99%

Fabrication of Plasmonic Optical Nanopore Platform for Single Molecule Sensing

Choi

Lee

et al. 2020

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

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.

show abstract

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

Cited by 6 publications

References 27 publications

Toward Next Generation Plasmonic Nanopore Slit Platform with a ~10 nm Slit-Width

Toward Next Generation Plasmonic Nanopore Slit Platform with a ~10 nm Slit-Width

Fabrication of Various Plasmonic Nano-aperture Platforms with a ~10 nm Width

Fabrication of Plasmonic Optical Nanopore Platform for Single Molecule Sensing

Contact Info

Product

Resources

About