N. Subhash, O,Wenzel, and H.K. Lichtenthaler, "Changes in blue-green and chlorophyll fluorescence emission and fluorescence ratios during senescence of tobacco plants", Remote Sens. Environ., 69, 215-223, 1999.
N. Subhash and C.N. Mohanan, "Curve fit analysis of chlorophyll fluorescence spectra: Application to nutrient stress detection in sunflower", Remote Sens. Environ., 60, 347-356, 1997.
N. Subhash, P. Mazzinghi, F. Fusi, G. Agati and B. Lercari, "Analysis of laser-induced fluorescence line shape of intact leaves: Application to UV stress detection", Photochem. Photobiol., 62, 711-718, 1995.
N. Subhash and C.N. Mohanan, "Laser-induced red chlorophyll fluorescence signatures as nutrient stress indicator in rice plants", Remote Sens. Environ., 47, 45-50, 1994.
N. Subhash, M.K.S. Kumar, T.M.A. Rasheed, K.P.B. Moosad and K. Sathianandan, "A multipass long-path cell for absorption measurements", J. Optics, 16, 51-57, 1987.
P. Radhakrishnan, K. Sathianandan and N. Subhash, "Laser-induced damage to spray pyrolysis deposited transparent conducting films", J. Appl. Phys., 59, 902-904, 1986.
N. Subhash, and K. Sathianandan, "A simple spark gap driven circuit for electro-optic Q-switches", J. Phys. E: Sci. Instrum., 17, 832-833, 1984.
N. Subhash and K. Sathianandan, "Thermal effects in a Nd-glass laser rod pumped in a double circular close-coupled cavity", IEEE J. Quantum Electron., QE-20, 111-116, 1984.
N. Subhash, S.C. Kartha and K. Sathianandan, "New vibrational bands in nitrogen laser emission spectra", Appl. Opt., 22, 3612-3617, 1983.
N. Subhash and K. Sathianandan, "Laser-induced damage to transparent conducting SnO2 films at 1062 nm", J. Appl. Phys., 54, 423-424, 1983.
N. Subhash and K. Sathianandan, "Inexpensive timing circuit for Q-switched solid-state laser using NE555 timers", Rev. Sci. Instrum., 51, 1130-1131, 1980.
B. Conference Proceedings
H.K. Lichtenthaler, N. Subhash, O. Wenzel and J.A. Miehe, Laser-induced imaging of blue/red and blue/far-red fluorescence ratios, F440/F690 and F440/F740, as a means of early stress detection in plants, Proc. Internat. Geosci. and Remote Sens. Symp. (IGARSS'97), Singapore, Vol.IV, 1799-1801, August 3-8, 1997.
N. Subhash and C.N. Mohanan, Remote detection of nutrient stress in groundnut plants by deconvolution of laser-induced fluorescence spectra", Proc. Internat. Geosci. and Remote Sens. Symposium (IGARSS'95), Firenze, Italy, Vol. III, 2323-2325, 1995.
N. Subhash, G. Agati, F. Fusi, P. Mazzinghi and B. Lercari, "Significance of curve fit analysis of laser induced fluorescence in vegetation remote sensing", Proc. Internat. Conf. on Lasers'93, Nevada, USA, 113-117, 1993.
N. Subhash and C.N. Mohanan, "Study of nutrient deficiencies in rice plants by laser-induced fluorescence", Proc. Fifth Kerala Science Congress, Kottayam, India, 340-341, 1993.
C.N. Mohanan and N. Subhash, "Laser-induced fluorescence intensity ratio F690/F725 as a nutrient stress indicator in rice plants", Proc. National Laser Symposium, IIT, Madras, India, 318-319, 1993.
N. Subhash, K.P.B. Moosad, T.M.A. Rasheed and K. Sathianandan, "Lithium iodate frequency doubler for ring dye lasers", Ext. Abs. Second IPA/DST Symp. on Lasers and Laser Applications, BHU, Varanasi, India, 80-83, 1989.
C. Technical Reports
N. Subhash, "Detection of vegetation stress from laser-induced fluorescence signatures", International Center for Theoretical Physics, Italy, LAMP Series Report No.LAMP/95/4, pp.1-24, 1995.
N. Subhash, "UV-B stress detection in Salvia splendens plants utilizing laser induced fluorescence", Activity Report on Proposal ERBCISTGT 920169 of the Commission of European Communities (CEC), Brussels, Belgium, 1993.
N. Subhash, A. Srinivasan and R. Chandrasekhar, "Neutral temperature measurements in the 80-90 km region using a ground based night airflow photometer", CESS Technical Report, 54, 1990.
N. Subhash, "Laser absorption measurement of OH radicals", CESS Technical Report, 48, 1987.