Professor, IIT Gandhinagar
Distinguished International Associate, Royal Academy of Engineering
Senior Member, Optical Society of America

B.Tech: University of Kalyani, 2000
Ph.D.: University of Strathclyde, 2010

Email: arup@iitgn.ac.in

Research Interests: Laser spectroscopy, air quality measurement, mid-infrared lasers

Prof Chakraborty’s group uses precision spectroscopy techniques using near-infrared and mid-infrared tunable diode lasers to develop high-sensitivity gas sensing platforms for industrial safety and ambient air quality monitoring that are both essential components of sustainable development. The group uses state-of-the-art wavelength modulation spectroscopy techniques and sophisticated data processing algorithms for accurate recovery of the mole fraction of a variety of gases with detection sensitivities down to the low parts per billion. We also focus on the engineering aspects of the design to build robust, lightweight and field-deployable systems for automated and long-term measurements in various parts of the city. This technology is readily adaptable to detect a large number of atmospheric pollutants and has therefore emerged as the preferred technique for highly reliable measurements.

Social media handle

https://www.linkedin.com/in/arup-lal-chakraborty-aaa103a/

Lab 

Photonic Sensors Lab: www.photonicsensorslab.com

Publications

A Roy and A L Chakraborty, “QCL-based open-path, single-pass measurement of ambient carbon monoxide using R1f/ΔI1 WMS”, IEEE Photonics Technology Letters, 33(18), 982-985, https://doi.org/10.1109/LPT.2021.3081708.

C K Jha, K Gajapure and A L Chakraborty, “Design and evaluation of an FBG sensor-based glove to simultaneously monitor flexure of ten finger joints”, IEEE Sensors Journal, 21(6), 7620-7630, doi.org/10.1109/JSEN.2020.3046521, Mar. 2021.

A Roy, R S Chawhan, A L Chakraborty, “Field deployment of a 4320 nm quantum cascade laser-based TDLS system to compare the background CO2 levels in Mt. Abu with foreground measurements in Gandhinagar, India,” SPIE Optical Engineering 59(2), 024110 (2020), https://doi.org/10.1117/1.OE.59.2.024110.

A Roy, A L Chakraborty, “Intensity modulation-normalized calibration-free 1f and 2f wavelength modulation spectroscopy”, IEEE Sensors Journal, 20(21), pp 12691-12701, https://doi.org/10.1109/JSEN.2020.3000470, Nov. 2020.

A S Zarin, A L Chakraborty, S Khatua, “Time-resolved studies of bioluminescence from Photobacterium leiognathi and antimicrobial susceptibility testing on E. coli using tunable diode laser spectroscopy”, IEEE Sensors Journal, 40(19), pp 11073-11081, https://doi.org/10.1109/JSEN.2020.2996228, Oct. 2020.

Projects

UAV-based laser spectroscopic monitoring of greenhouse gas emissions in urban and rural India; Royal Academy of Engineering (RAE), United Kingdom   

Novel laser-based monitoring of key environmental parameters – addressing well-being, livelihood and a healthier environment in developing regions of India; RAE    

High sensitive detection of atmospheric pollutant gases to monitor the effects of industrial emissions on urban air quality; Gujarat Council for Science and Technology (GUJCOST), Gujarat, India