Embedded Files
Overview
Overview
Our research program focuses on the applications of THz and Raman Spectroscopic Imaging - two highly precision laser spectroscopy techniques. We use them as viable non-contact diagnostic platforms for understanding the behavior of various biological and condensed matter systems, which can have long-ranging implications in technological and commercial landscapes in next generation agricultural management practices and opto-electronics.
We aim to study large-scale physical and chemical behavior of Agri-food-pharma and essentially various bio-components of our modern 'material' world. Through our research objectives and priorities, we try to address some of the critical emerging issues of our time: blue water scarcity, food quality control, counterfeit drugs, ecological sustainability and renewable energy resources.
Confocal Ultra-low Frequency (ULF) micro-Raman Spectroscopy and Imaging
Confocal Ultra-low Frequency (ULF) micro-Raman Spectroscopy and Imaging
Micro-Raman spectroscopy has many applications in material identification and characterization.
Our confocal ULF micro-Raman Spectroscopy and Imaging system is adapted for multi-wavelength excitation capabilities (491, 532, 561, 633 and 785nm) with resolution as low as 1 cm-1. Our system can detect Raman lines as low as 5 cm-1 to the Rayleigh line and we can measure upto 3500 cm-1.
In recent years, our system has been used for several different types of projects, in collaboration with scientists from other disciplines including studies of amorphous carbon phases, semiconductor nanostructures, bio-polymers and molecular materials.
Raman & THz Technique Applications in Cultural Heritage Sciences
THz Spectroscopy and Spectral Imaging
THz Spectroscopy and Spectral Imaging
The application of THz light to agricultural and biomedical questions is motivated by: (1) strong absorbance by water; (2) sharp resonances in chemical fingerprinting; and (3) low possibility of tissue damage by such low energy photons.
In our lab, we probe various chemicals (organics and bio-molecules for agri-photonics applications; molecular systems for understanding energetics, etc.); electrical materials (metals, semi-metals, semiconductors, etc. for optoelectronic applications); and even several structural compositions (composites for polymer and material engineering; artefacts made of marble for heritage conservation applications and THz guiding structures such as HCMWs, etc.).
Using fiber coupled PCAs, we also do THz probing of materials under ultrafast optical excitations (390 and 780nm)
Google Sites
Report abuse