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Browsing BITS Faculty Publications by Author "Arora, Pankaj"

Now showing items 1-20 of 37

Aluminum as a competitive plasmonic material for the entire electromagnetic spectrum: A review

Arora, Pankaj (Elsevier, 2024-11)

With plasmonics taking the lead in most sensing applications, research has geared towards alternative, cost-effective materials that can strive for large-scale production along with CMOS compatibility. Aluminum (Al) is ...
Aluminum-Based Engineered Plasmonic Nanostructures for the Enhanced Refractive Index and Thickness Sensing in Ultraviolet-Visible-Near Infrared Spectral Range

Arora, Pankaj (Electromagnetics Academy, 2019-03)

We engineer Aluminum (Al) based periodic plasmonic nanostructures for enhanced refractive index and thickness sensing, which offer to access complete ultraviolet-visible-near infrared spectral range for surface plasmon ...
Analysis of engineered aluminum-based plasmonic devices decorated with graphene/2D nanomaterials for enhanced biosensing applications in the near-infrared region

Arora, Pankaj (IEEE, 2021)

The dynamics of light-matter interaction between metal-analyte interfaces can be studied by the surface plasmon resonance phenomenon. Among the plasmonic metals, Aluminum (Al) has become quite a popular choice because of ...
CLEO Dispersion engineering with plasmonic nanostructures for enhanced surface plasmon resonance sensing

Arora, Pankaj (CLEO, 2018)

We experimentally demonstrate plasmonic resonance narrowing via dispersion engineering using plasmonic nanogratings placed on top of thin metal coated prism. The enhancement in Q factor, combined with strong field localization ...
CLEO Observation of plasmonic enhanced EIT and velocity selective optical pumping measurements with atomic vapor

Arora, Pankaj (CLEO, 2018)

We demonstrate theoretically and experimentally for the first time nanoscale plasmonic enhanced electromagnetically induced transparency and velocity selective optical pumping effects in miniaturized integrated quantum ...
Colorimetric sensing using Fourier plane imaging of surface plasmons

Arora, Pankaj (OSA Open Access, 2015-06)

Surface Plasmons (SPs) propagating at a metal-dielectric interface are highly sensitive to minute changes in the near-field refractive index and thickness of surrounding medium. Moreover, coupling of incident light to the ...
Cooperative coupling of hot alkali vapors to surface plasmon: Towards room temperature quantum plasmonics with atomic media

Arora, Pankaj (IEEE, 2018)

We demonstrate cooperative coupling between hot vapors and surface plasmons with three-fold Purcell factor enhancement. Our result can be regarded as a major step in the quest for room temperature quantum plasmonics with ...
Dark field imaging in a bright field microscope using tailored polarization of Spoof Surface Plasmons

Arora, Pankaj (OSA Open Access, 2014)

We experimentally image the hybrid mode Spoof Surface Plasmons in real and Fourier plane and utilize the differential phase retardation to convert a bright field microscope to dark field transmission plasmonic polarization ...
Demonstration of Dichroic Atomic Vapor Laser Lock in Micro Fabricated Vapor Cell Using Light Induced Atomic Desorption

Arora, Pankaj (IEEE, 2019)

We demonstrate Dichroic Atomic Vapor Laser Lock (DAVLL) using light induced atomic desorption in micro fabricated vapor cell. We have stabilized a 780 nm laser with a precision better than 400 kHz without heating.
Demonstration of On-Chip Thermocouple Photodetector in Infrared Regime through Field Enhancement by Plasmonic Nano Focusing

Arora, Pankaj (OSA Open Access, 2018)

On-chip thermocouple photodetector is realized for near infrared regime. Conversion of electromagnetic field to heat was performed through plasmonic mode which leads to joule heating at the metal. The responsivity of the ...
Design and Analysis of Aluminum-Silicon-Graphene Based Plasmonic Device for Biosensing Applications in the Optical Communication Band

Arora, Pankaj (Springer, 2021-01)

This work utilizes the modified Attenuated Total Reflection (ATR) configuration, to detect minute refractive index changes near the sensing surface. In the proposed ATR configuration, the presence of the graphene layer ...
Design and comparative analysis of aluminum-BiFeO3-based plasmonic device in the near-infrared region

Arora, Pankaj (Springer, 2024-05)

In this work, a nano-plasmonic device based on Aluminum with BiFeO3 (BFO), as a multiferroic oxide with remarkable dielectric properties, is engineered using the transfer matrix method for implementation in an optical ...
Design and comparative analysis of aluminum-MoS2 based plasmonic devices with enhanced sensitivity and Figure of Merit for biosensing applications in the near-infrared region

Arora, Pankaj (Elsevier, 2021-02)

Aluminum (Al)-Molybdenum Disulfide (MoS2) based plasmonic structures act as excellent biosensors when exploited in the near-infrared region. While Al is economical as well as compatible with the optoelectronic devices, ...
Dispersion engineering with plasmonic nanostructures for enhanced surface plasmon resonance sensing

Arora, Pankaj (IEEE, 2018)

We experimentally demonstrate plasmonic resonance narrowing via dispersion engineering using plasmonic nanogratings placed on top of thin metal coated prism. The enhancement in Q factor, combined with strong field localization ...
Efficient Hyperfine Optical Pumping of RB Atoms in Miniaturized Vapor Cells

Arora, Pankaj (IEEE, 2019)

We demonstrate the positive role of buffer gas in achieving highly efficient hyperfine-structure based optical pumping of Rubidium atoms in miniaturized vapor cells. At a pressure of 40 Torr, pumping efficiency of 85% is achieved.
Efficient optical pumping of alkaline atoms for evanescent fields at dielectric-vapor interfaces

Arora, Pankaj (OSA Open Access, 2019)

We experimentally demonstrate hyperfine optical pumping of rubidium atoms probed by an evanescent electromagnetic field at a dielectric-vapor interface. This light-atom interaction at the nanoscale is investigated using a ...
Fourier plane colorimetric sensing using broadband imaging of surface plasmons and application to biosensing

Arora, Pankaj (AIP, 2015-12)

We demonstrate an optical technique for refractive index and thickness sensing of sub-wavelength-thick dielectric analytes. The technique utilizes the broadband, multimode, directional leakage radiation arising from the ...
Graphene decorated aluminum-nanostructure based plasmonic device with enhanced sensitivity and figure of merit using both wavelength and angle interrogation

Arora, Pankaj (Elsevier, 2022-07)

In this work, we have proposed graphene decorated Aluminum (Al) nanostructure-based plasmonic device for sensing in the near-infrared region where the same engineered plasmonic device can be used under both angle as well ...
Highly efficient optical pumping of Rb atoms for evanescent fields at dielectric-vapor interfaces

Arora, Pankaj (IEEE, 2019)

Optical prism integrated with a vapor cell and excited by evanescent wave under total internal reflection is used to study nanoscale light-atom interactions and to demonstrate efficient optical pumping of rubidium at a ...
Highly sensitive self-referenced plasmonic devices based on engineered periodic nanostructures for sensing in the communication band

Arora, Pankaj (SPIE, 2020-06)

Periodic plasmonic nanostructures on a thin homogeneous metal layer are used to excite surface plasmons (SPs) for normal incident light in the optical communication band. The structures are engineered using rigorous ...

Now showing items 1-20 of 37

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