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Article
Fabrication of Gold Thin Films on Cooled Glass Substrates
In this article, gold (Au) thin films were fabricated on glass substrates under vacuum conditions (4.5 × 10−6 Torr) within a temperature range of 100–300 K, incrementing in steps of 50 K. Analyses through Field E...
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Article
A Portable Plasmonic Biosensor Kit for Diagnostics of Sexually Transmitted Infection
Sexually transmitted infections (STIs) due to Neisseria gonorrhoeae (NG) and Chlamydia trachomatis (CT) pose global health challenges due to their widespread prevalence through sexual contact. Rapid and user-f...
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Article
Enhancing Label-Free Biosensing With Cryogenic Temperature-Induced Plasmonic Structures
Plasmonic nanoparticles exhibit distinct nearfield properties that offer potential advantages for label-free biosensing applications. By generating strong interactions between light and matter, these nanoparti...
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Article
Fabrication of Sub-10-nm Plasmonic Gaps for Ultra-Sensitive Raman Spectroscopy
The past two decades have witnessed the explosion of activities in the field of surface enhanced Raman spectroscopy (SERS). SERS platforms employ nano-structures that excite plasmonic modes with large local el...
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Article
Multi-Band Plasmonic Platform Utilizing UT-Shaped Graphene Antenna Arrays
In this work, we introduce a plasmonic platform based on UT-shaped graphene antenna arrays. The proposed multi-resonant platform shows three different resonances, which can be independently tuned. The physical...
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Article
Open AccessDetermining therapeutic susceptibility in multiple myeloma by single-cell mass accumulation
Multiple myeloma (MM) has benefited from significant advancements in treatment that have improved outcomes and reduced morbidity. However, the disease remains incurable and is characterized by high rates of dr...
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Article
Extraordinary Transmission Characteristics of Subwavelength Nanoholes with Rectangular Lattice
We investigate the extraordinary optical transmission (EOT) properties of nanohole arrays with a rectangular lattice for label-free refractive index sensing applications. We show that the deviation within the ...
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Article
Optical Response of Plasmonic Nanohole Arrays: Comparison of Square and Hexagonal Lattices
Nanohole arrays in metal films allow extraordinary optical transmission (EOT); the phenomenon is highly advantageous for biosensing applications. In this article, we theoretically investigate the performance o...
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Article
Open AccessFDTD analysis of optical forces on bowtie antennas for high-precision trap** of nanostructures
We theoretically investigate the optical forces generated by a high near-field resolution antenna system through finite difference time domain calculations along with the Maxwell stress tensor method. Our ante...
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Article
Multi-resonant compact nanoaperture with accessible large nearfields
We present a compact and multi-resonant aperture system supporting large local electromagnetic fields, which is highly advantageous for applications demanding high signal-to-noise ratio. The system is composed...
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Article
Open AccessLensfree optofluidic plasmonic sensor for real-time and label-free monitoring of molecular binding events over a wide field-of-view
We demonstrate a high-throughput biosensing device that utilizes microfluidics based plasmonic microarrays incorporated with dual-color on-chip imaging toward real-time and label-free monitoring of biomolecula...
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Article
Open AccessHandheld high-throughput plasmonic biosensor using computational on-chip imaging
We demonstrate a handheld on-chip biosensing technology that employs plasmonic microarrays coupled with a lens-free computational imaging system towards multiplexed and high-throughput screening of biomolecula...
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Article
Optical Trap**, Biosensing, and Spectroscopy in a Single Plasmonic Platform
We propose plasmonic platform that can enable optical trap**, spectroscopy and biosensing, all in the same platform. The system is based on periodic arrays of gold nanopillars fabricated on a supporting gold...
