Dr Hemanth Dinesan
Biography
- 2015-2017: Postdoctoral fellow, Laser Spectroscopy Group, Physics department, University College Cork, Ireland.
CARIBIC (Civil Aircraft for the Regular Investigation of the atmosphere Based on an Instrument Container) - 2011-2014: Graduate research student, Seconda Università degli studi di Napoli, Italy.
Dual-laser absorption spectrometry for precision measurements of water spectra in the near-infrared region. - 2010-2011: Project Associate, Indian Institute of Technology (IIT), Kanpur, India.
Polarized fluorescence spectroscopy for the early diagnosis of cervical cancer. - 2009-2010: Master's Thesis, Fiber Optics and Photonics Division, Central Glass and Ceramic Research Institute (CGCRI), India.
A detailed study of the Photodarkening effect in the Erbium-doped fiber lasers.
Research Interests
- High sensitivity molecular spectroscopy involving optical cavities.
- Metrology, Primary methods and applications.
- Non-linear spectroscopy.
Publications
- Hemanth Dinesan, Eugenio Fasci, A.D'Addio, Antonio Castrillo, and Livio Gianfrani,Characterization of an optical frequency standard at 1.39 m based up on noise-immune cavity enhanced optical heterodyne molecular spectroscopy.Opt. Exp. 23, 1757-1766 (2015)
- F. Rohart, S. Mejri, P. S. T. Sow, S. K. Thokunaga, C. Chardonnet, B. Darquie, H. Dinesan, E. Fasci, A. Castrillo, L. Gianfrani and C. Daussy,
Absorption line shape analysis beyond the detection limit: Application to the Boltzmann constant determination,
Phys. Rev. A 90, 042506 (2014). - Hemanth Dinesan, Eugenio Fasci, Antonio Castrillo, and Livio Gianfrani,
Absolute frequency stabilization of an extended-cavity diode laser by means of Noise-Immune Cavity-Enhanced Optical Heterodyne Molecular Spectroscopy
Opt. Lett. 39, 2198-2201 (2014) - Antonio Castrillo, Hemanth Dinesan, Giovanni Casa, Gianluca Galzerano, Paolo Laporta and Livio Gianfrani
Amount-ratio determinations of water isotopologues by dual-laser absorption spectrometry
Phys. Rev. A 86, 052515 (2012).
Presentations
- E. Fasci, A. Castrillo, H. Dinesan, P. Amodio, M.D. De Vizia, L. Moretti, and L. Gianfrani,
Spectroscopic determination of the Boltzmann constant at UniNa2,
Fundamental constants meeting 1-6 Feb, Germany (2015). - H. Dinesan, E. Fasci, A. D'Addio, S. Gravina, A. Castrillo and L. Gianfrani
A reference method for water vapor measurements based up on Cavity Ring-down Spectrometry - International workshop on Metrology for Meteorology and Climate MMC, September 15-18, Slovenia (2014).
Eugenio Fasci, Hemanth Dinesan, Antonio Castrillo and Livio Gianfrani,
A molecular clock based upon Noise-Immune Cavity-Enhanced Optical Heterodyne Molecular Spectroscopy
FOTONICA, May 12-14, Naples (2014). - Hemanth Dinesan, Antonio Castrillo, Giovanni Casa, Gianluca Galzerano, Paolo Laporta and Livio Gianfrani
Absolute frequency spectroscopy for the determination of 17O/16O amount-ratio in water
FISMAT, September 9-13, Milan (2013). - Hemanth Dinesan, Eugenio Fasci, Giovanni Casa, Antonio Castrillo and Livio Gianfrani,
Absolute frequency stabilization of an extended-cavity diode laser by Noise-Immune Cavity-Enhanced Optical Heterodyne Molecular Spectroscopy,
FISMAT, September 9-13, Milan (2013) - Hemanth Dinesan, Eugenio Fasci, Giovanni Casa, Antonio Castrillo and Livio Gianfrani,
Absolute frequency stabilization of an extended-cavity diode laser by Noise-Immune Cavity-Enhanced Optical Heterodyne Molecular Spectroscopy,
HRMS, August 25-30, Hungary (2013). - Antonio Castrillo, Hemanth Dinesan, Giovanni Casa, Gianluca Galzerano, Paolo Laporta and Livio Gianfrani,
Application of the Kalman filtering technique to the spectroscopic determination of the 17O/16O isotope ratio in water,
SIF, September 17-21, Napoli (2012)