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 ...
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 ...
We present colorimetric stain free image based sensing of antibody-antigen binding and refractive index perturbation, using substrates that support hybrid mode surface plasmons and demonstrate their integration with ...
In this work, we demonstrated an on-chip label-free imaging microscopy using real and Fourier Plane (FP) dark field images of surface plasmons, by integrating engineered plasmonic substrates with different shapes of ...
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 ...
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 ...
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 ...
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 ...
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 ...
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.
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 ...
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.
A compact, on-chip atomic optical isolator using light induced atomic desorption technique is demonstrated. A millimeter size fabricated vapor cell integrated with small permanent magnets of ≈ 300 Gauss are used to realize ...
A plasmonic device with a self-referenced capability that uses periodic nanostructures has been proposed and analyzed in terms of the spectral response. Aluminum-based periodic nanostructures that scatter incoming radiation ...
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 ...
Biomolecular variations can be accounted for by changes in the intrinsic properties of the surrounding medium, such as the refractive index. This work employs such an arrangement using a modified attenuated total internal ...
We experimentally demonstrate and image the hybrid nature of surface plasmon polaritons (SPPs) at visible wavelengths excited in low aspect ratio 1D and 2D periodic plasmonic structures with periods nearly equal to the ...
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 ...
In this work, we experimentally observe for the first time nanoscale plasmonic enhanced Electromagnetically Induced Transparency (EIT) and Velocity Selective Optical Pumping (VSOP) effects in miniaturized Integrated Quantum ...
In this work, we demonstrated an on-chip label-free imaging microscopy using real and Fourier Plane (FP) dark field images of surface plasmons, by integrating engineered plasmonic substrates with different shapes of ...