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Role of polarized tip-enhanced Raman spectroscopy in the enhancement of interface optical phonon modes in AlGaN multi-quantum wells
A. K. Sivadasan, Prajit Dhara, Chirantan Singha +5
Group III nitride based two-dimensional multi-quantum well (MQW) nanostructures find remarkable applications in the visible to ultraviolet light sources. The interface optical (IFO…
Near Field Scanning Optical Imaging of Gold Nanoparticles in the Sub-Wavelength Limit
Prajit Dhara, A. K. Sivadasan
The near-field scanning optical microscopic (NSOM) imaging of Au nanoparticles with size in the sub-wavelength limit (<wavelength/2N.A.) is reported. The NSOM imaging technique can…
Optical imaging of metallic and semiconductor nanostructures at sub wavelength regime
A. K. Sivadasan, Kishore K. Madapu, Prajit Dhara
The near field scanning optical microscopy (NSOM) is not only a tool for imaging of objects in the sub wavelength limit but also a prominent characteristic tool for understanding t…