Satheesh Chandran
Biography
Satheesh Chandran hails from India, and his formative years and early education took place in Kerala, a southern state in the country. He obtained his undergraduate and postgraduate degrees in Physics from the esteemed University of Calicut in Kerala, India. In 2016, Satheesh successfully completed his doctoral studies at the National Institute of Technology in Calicut, Kerala, India, focusing his research on the advancement of instrumentation based on cavity-enhanced absorption techniques for monitoring atmospheric trace pollutants. Additionally, Satheesh is a co-founder of the startup company "Optind Solutions," Private Limited, situated in Calicut, India. This company is primarily dedicated to developing optical sensors designed for measuring light scattering and extinction phenomena related to atmospheric constituents. These sensors play a vital role in applications such as air pollution monitoring and climate research.
Research Interests
Applied Optics and Laser Spectroscopy, Frequency Comb Spectroscopy and Photonic Sensors, Cavity Enhanced Absorption Spectroscopy, Atmospheric Optics, Development of Optical Instrumentation for Trace Gas Detection, Nephelometers and Laser Transmissometers.
Current Research Project
Presently, I am engaged in an SFI funded Frontiers Award to develop a frequency comb-based trace gas sensor in the near-IR. Furthermore, I am developing cavity enhanced instrumentation for Irish Atmospheric Simulation Chamber.
Publications
Journal Articles
E.P. Martin, S. T. Ahmad, S. Chandran, A. Rosado, A. A. Ruth, P. M. Anandarajah. Stability characterisation and application of mutually injection locked gain switched optical Frequency combs for dual comb Spectroscopy, Journal of Lightwave Technology (2023), 31669:1.
Z. Yang, M. Wang, Y. Hou, Y. Liu, S. Chandran, R. Varma, S. Lou, J. Chen. Intercomparison of ambient nitrous acid measurements in a Shanghai urban site, Atmosphere (2022), 13:1
S. Chandran, S. Dixneuf, J. Orphal, A.A. Ruth. Experimental observation of the ν2+4ν3 bands of HD16O and HD18O between 14975 and 15275 cm-1, Journal of Molecular Spectroscopy (2021), 375: 111395
J. Chen, D.N. Wang, R. Arun, S. Chandran, M. Li, R. Varma. An open-path dual-beam laser spectrometer for path-integrated urban NO2 sensing, Sensors and Actuators A: Physical (2020), 315: 112208
S. Chandran, A. A. Ruth, E. P. Martin, J. K. Alexander, F. Peters, P. M. Anandarajah. Off-axis cavity enhanced absorption spectroscopy of 14NH3 in air using a gain-switched frequency comb at 1.512 µm, Sensors (2019) 19:1
S. Chandran, S. Mahon, A.A. Ruth, J. Braddell, M.D. Gutiérrez. Cavity-enhanced absorption detection of H2S in the near-infrared using a gain switched frequency comb laser, Applied Physics B (2018) 124:63
J. K. Alexander, L. Caro, M. Dernaika, S. P. Duggan H. Yang, S. Chandran, E. P. Martin, A. A. Ruth, P. M. Anandarajah, F. H. Peters. Monolithically integrated device designs for dual optical frequency comb generation, Optics Express (2020), 28:16900
K. Suhail, M. George, S. Chandran, R. Varma, D.S. Venables, M. Wang, J. Chen. Open path incoherent broadband cavity-enhanced measurements of NO3 radical and aerosol extinction in the North China Plain, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy (2019) 208:24
S. Chandran, A. Puthukkudy, R. Varma. Dual−wavelength dual−cavity spectrometer for NO2 detection in the presence of aerosol interference, Applied Physics B (2017) 123:213
S. Chandran, R. Varma. Near infrared cavity enhanced absorption spectra of atmospherically relevant ether-1, 4-Dioxane, Spectrochimica Acta part A: Molecular and Biomolecular Spectroscopy, (2016) 153:704
S. Chandran, A. Panayamthatta, R. Varma, S. Athiyanathil. The real time optical transmittance of swollen heterogeneous natural rubber/poly (ethylene-co-vinyl acetate) blends, Journal of Polymer Engineering (2016) 37:3
Articles in international conference proceedings
E. P. Martin, S. Chandran, A. Rosado, E. P. Soderholm, J. K. Alexander, F.H. Peters, A.A. Ruth, P. M. Anandarajah. Mutually Injection Locked Gain Switched Optical Frequency Combs for Dual Comb Spectroscopy of H2S, Conference on Lasers and Electro-Optics (CLEO) Proceedings, 1, (2020)
S. Chandran, P. Ashok, P. Anin, A. Sujith, R. Varma. Accurate real time optical transmission study of vulcanized poly (ethylene-co-vinyl acetate) in aromatic solvent, American Institute of Physics (AIP) Conference Proceedings, 1536, 861 (2013)
P. M. S. Chandran C. P. Krishnakumar, W. Yuen, M. J. Rood, R. Varma. An open‐path laser transmissometer for atmospheric extinction measurements, American Institute of Physics (AIP) Conference Proceedings, 1391, 288 (2011)
Professional Activity
Consultancy Projects
1. Development of near infrared natural gas leak detection system. From Department of Mechanical and Manufacturing Engineering, University of Calgary, Canada (Processed through Banyan Scientific (Optind), Calicut, India) (01-05-2017 – 30-06-2017), Total amount: 1707 Canadian Dollar (completed).
2. Customized program in LabVIEW for data acquisition and analysis for cavity enhanced HONO instrument with Ocean Optics spectrometer and installation. From Shanghai Thunder Environmental Technology Co.,Ltd, Room 1005-06, Huiyang Plaza, No.55, Tianlin East Road, Xuhui District (Processed through Banyan Scientific (Optind), Calicut, India) (1-05-2017 – 01-11-2017), Total amount: 60000 Chinese Yuan (completed).
Journal Activities
Referee
Optics Express, Chemical Physics Letters, Sensors, Remote Sensing, Applied Sciences, Electronics, Toxics, Micromachines.
Outreach Activities
Invited Talk: Prototype Validation-Converting Prototype into a Startup, Institutions Innovation Council, National Institute of Technology Calicut. Calicut, Kerala, India (29/07/2021)
Keynote speaker: N. S. S College Manjeri, Malappuram, Kerala, India (International webinar on Laser Spectroscopy -A powerful tool for the observation of atmospheric trace pollutants (15/08/2020)
Subject Expert: Interview of Assistant Professors (under the technical education quality improvement program (TEQIP) of the Government of of India In the stream of Physics, carried out in National Institute of Technology Calicut, Calicut, India (12/12/2017)
Organising Committee Member, One day workshop on "Spectroscopy: Instrumentation and Measurements, A workshop organized for Postgraduate teachers and researchers at NITC during 11-1-2014. (Coordinator: Dr. M.K Ravi Varma)
Organising Committee Member, "OPTICS'11 - A conference on Light" [Optics: Phenomena, Materials, Devices, and Characterisation], held in National Institute of Technology Calicut during May 23 - 25, 2011. (Convenor: Prof. P. Predeep)
Organising Committee Member, "INSPIRE-2010", a winter science camp organized for 11th standard students at NITC during 18 - 22 December, 2010. (Coordinator: Prof. P. Predeep)
Teaching Activity
- Demonstrator (PY4113: Experimental Physics III)
- Tutor (PY4105: Atomic and Molecular Physics)
Presentations
Selected conferences
S. Chandran, A. A. Ruth, E. P. Martin, A. Rosado, E. P. Soderholm, P. M. Anandarajah. Application of a 100 MHz Gain Switched Frequency Comb Laser for Cavity Enhanced Trace Gas Detection, Field Laser Application in Industry and Research (FLAIR 2022), September 2022, Aix-les-Bains, France
S. Chandran, A. A. Ruth, E. P. Martin, J. K. Alexander, F. Peters, P. M. Anandarajah. Gain switched frequency comb lasers for atmospheric trace pollutant monitoring, International Conference on Spectral Line Shapes (ICSLS 2018), June 2018, Dublin City University, Dublin, Ireland
S. Chandran, S. Mahon, A.A. Ruth, F. Smyth, J. Braddell, M.D. Gutiérrez. Cavity-enhanced absorption detection of H2S in the near-infrared using a gain switched frequency comb laser, Photonics 2016 (International Conference on Fiber Optics and Photonics), December 2016, Indian Institute of Technology Kanpur, Kanpur India
S. Chandran, R. Varma. Incoherent broadband cavity-enhanced absorption spectroscopy for sensing of environmental ethers, International Workshop and Conference on Frontiers of Spectroscopy, January 2015, Banaras Hindu University, Varanasi, India
A. A. Ruth, S. Chandran, E. P. Martin, A. Rosado, E. P. Soderholm, J. K. Alexander, F. Peters, P. M. Anandarajah. Ammonia Sensing with a Gain Switched Frequency Comb of 100 MHz Free Spectral Range using Off-Axis Cavity-Enhanced Absorption Spectroscopy, European Geosciences Union General Assembly 2022, May 2022, Vienna, Austria
E. P. Martin, S. Chandran, A. Rosado, J. K. Alexander, F. Peters, A. A. Ruth, P. M. Anandarajah. Mutually injection locked gain switched optical frequency combs for dual comb spectroscopy of H2S, Conference on Lasers and Electro-Optics (CLEO) May 2020, San Jose Convention Center, San Jose, California, USA
J. K. Alexander, S. P. Duggan, M. Dernaika, L. Caro, H. Yang, S. Chandran, E. P. Martin, A. A. Ruth, P. M. Anandarajah, F. H. Peters. Integrated dual optical frequency comb source, Photonics Ireland 2018, September 2018, Cork, Ireland
E. P. Martin, S. Chandran, A. A. Ruth, J. K. Alexander, F. Peters, P. M. Anandarajah. Phase correlated gain switched laser based dual comb photonic sensor interrogator, Photonics Ireland 2018, September 2018, Cork, Ireland
M. George, K. Suhail, S. Chandran, J. Chen, K. Lu, A. Ruth, D. Venables, R. Varma. Open-path in situ measurement of the nitrate radical concentrations during the CAREBeijing-NCP 2014 summer campaign, European Geosciences Union General Assembly 2016, April 2016, Vienna, Austria
K. Suhail, M. George, A. Puthukkudy, S. Chandran, R Varma. Incoherent broadband cavity-enhanced absorption spectroscopy for sensing trace pollutants in urban atmosphere, International Workshop and Conference on Frontiers of Spectroscopy, January 2015, Banaras Hindu University, Varanasi, India
S. Chandran, P. Ashok, P. Anin, A. Sujith, R. Varma. Accurate real time optical transmission study of vulcanized poly (ethylene-co-vinyl acetate) in aromatic solvent, International Conference on Recent Trends in Applied Physics & Material Science (RAM 2013), February 2013, Govt. College of Engineering & Technology, Bikaner-334004, Rajasthan, India
P. M. S. Chandran, C. P. Krishnakumar, W. Yuen, M. J. Rood, R. Varma. An open‐path laser transmissometer for atmospheric extinction measurements, May 2011, Optics 11, International Conference on Light: Optics: Phenomena, Materials, Devices, and Characterization, National Institute of Technology Calicut, Calicut, Kerala, India