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Dean Noureddine Melikechi

UMass Lowell Sciences Dean Noureddine Melikechi
Noureddine Melikechi, D.Phil. Dean of Kennedy College of Sciences, Professor

Research Interest

The Science of Spectral Signatures:  Laser spectroscopy of complex systems in crowded environments with a focus on: 
  1. Developing sensitive optical techniques for the early detection of cancers 
  2. As a member of two NASA Mars missions (Curiosity and Mars 2020) analyzing laser induced breakdown spectra of Martian oils, dust and rocks.
  3. Developing experimental and numerical methodologies for isotopic identification and quantification using laser induced breakdown spectroscopy.

Educational Background

D.Phil. Physics, University of Sussex, England, 1987.
M.Sc. in Physics, University of Sussex, England, 1982.
Diplôme d'Études Supérieures in Physics, Houari Boumediene University of Sciences and Technology, Algiers, Algeria, 1980.


Noureddine Melikechi was appointed Dean of the Kennedy College of Sciences in October 2016.  

Melikechi’s research work spans a wide range of areas of atomic, molecular and optical physics with contributions to spectroscopy, nonlinear optics, optical sensing, high precision measurements, and biophotonics.  As a member of NASA’s Mars Science Laboratory mission, Melikechi contributes to the analysis of spectroscopic data collected by the Chemistry Camera instrument on board the Curiosity Rover. In addition, Melikechi works on applications of laser spectroscopy for the early detection of signatures of epithelial ovarian cancer. 

Prior to joining the University of Massachusetts Lowell, Melikechi was at Delaware State University where he experienced all academic ranks.  There, he held the positions of Chair of the Department of Physics, Dean of the College of Mathematics, Natural Sciences and Technology, and was the founding director of the Optical Science Center for Applied Research.  During his tenure at Delaware State University, he led teams that secured well over $25 million in federal funding, which resulted in the 2015 opening of a new building dedicated to optics education and research.  Melikechi has taught undergraduate and graduate courses in physics and has supervised several students, most of whom come from underrepresented groups in science, technology, engineering and mathematics.

Melikechi has served on numerous advisory boards.  Currently, he serves on the board of the North American Society for Laser-Induced Breakdown Spectroscopy, the International Science Committee on Laser Induced Breakdown Spectroscopy, and the Algerian-American Foundation for Culture, Education, Science and Technology.  

Melikechi has received numerous awards,  including: The Excellence Award from the African Society for Engineering Management, the Delaware Bioscience Association’s Academic Research Award, the NASA Group Award for work that the ChemCam team performed, and the US-Algeria Business Council Award for International Science. 

A native of Algeria, Melikechi received his Diplôme d'Études Supérieures in Physics from the Houari Boumediene University of Sciences and Technology in Algiers in Algeria, and his M.Sc. and D.Phil., both in Physics, from the University of Sussex in England. 

  • Fellow of the Optical Society of America, 2016
  • Reconocimiento, El comité organizador del la luz de la cienca, en la cuidad de Mérida, Yucatan, Mexico, 2016
  • Excellence Award for Youth Empowerment and Development in Africa, the “African Society for Engineering Management,” 2014
  • NASA Group Achievement Award, Mars Science Laboratory ChemCam Instrument Development and Science Team, NASA, 2013
  • Arfken Scholar-in-Residence, Miami University, Oxford, Ohio, 2013
  • Academic Research Award, the Delaware Bioscience Association, 2012
  • Recognition Proclamation, State of Delaware Legislature, 2011
  • Presidential Research Award, Delaware State University, 1998


Book Chapter 
1. Y. Markushin and N. Melikechi “Sensitive Detection of Epithelial Ovarian Cancer Biomarkers Using Tag-Laser Induced Breakdown Spectroscopy” in “Ovarian Cancer – Basic Science Perspectives”, Edited by Samir A. Farghaly, ISBN 978-953-307-812-0, Published: February 17, 2012 under CC BY 3.0 license, in subject Obstetrics and Gynecology. DOI: 10.5772/28185.

1. Fernandez-Bravo, Angel; Sivakumar, Poopalasingam; Melikechi, Noureddine; Mohamed, Ahmed; “ Femtosecond Laser Ablataion Synthesis of Aryl Functional Group Substituted Gold Nanoparticles”, Journal of nanoscience and Naotechnology, Volume 17, Number 4, 2852-2656(5) (2017).
2. W. Rapin, P.-Y. Meslin, S. Maurice, R.C. Wiens, D. Laporte, B. Chauvire, O.Gasnault, S. Schroder, P.Beck, S. Bender, O.Beyssac, A. Cousin, E. Dehouck, C. Droute, O. Forni, M. Nachon, N. Melikechi, R. Rondeau, N. Mangold, N.H. Thoams, “Quantification of water content by laser induced breakdown” Spectrochimica Acta Part B Atomic Spectroscopy, Volume 130, pp 82-100 (2017);
3. N. Melikechi, Y. Markushin, D.Connolly, J. Lasue, E. Ewusi-Annan, S. Makrogiannis “Age specific classification of discrimination of blood plasma samples of healthy and ovarian cancer prone mice using laser-induced breakdown spectroscopy”, Spectrochimica Acta Part B Atomic Spectroscopy, 123, 33-41 (2016)
4. S. Maurice, S. M. Clegg,  R. C. Wiens,  O. Gasnault,  W. Rapin,  O. Forni,  A. Cousin,  V. Sautter, N. Mangold,  L. Le Deit,  M. Nachon, R. B. Anderson,  N. L. Lanza,  C. Fabre,  V. Payré,  J. Lasue, P.-Y. Meslin,  R. J. Léveillé, B. L. Barraclough,  P. Beck,  S. C. Bender,  G. Berger,  J. C. Bridges, N. T. Bridges,  G. Dromart,  M. D. Dyar,  R. Francis,  J. Frydenvang,  B. Gondet,  B. L. Ehlmann, K. E. Herkenhoff, J. R. Johnson,  Y. Langevin,  M. B. Madsen,  N. Melikechi,  J.-L. Lacour,  S. Le Mouélic, E. Lewin,  H. E. Newsom,  A. M. Ollila,  P. Pinet,  S. Schröder,  J.-B. Sirven,  R. L. Tokar, M. J. Toplis,  C. d'Uston,  D. T. Vaniman and  A. R. Vasavada; “ChemCam activities and discoveries during the nominal mission of the Mars Science Laboratory in Gale crater, Mars”; Jour. Analytical Atomic Spectroscopy,  Issue 4, (2016)
5. Y. Markushin, P. Sivakumar, D. Connolly, and N. Melikechi, “Tag-Femtosecond Laser Induced Breakdown Spectroscopy for the Sensitive Detection of Cancer Antigen 125 in Blood Plasma”, Anal. Bioanal. Chem., 407 (7):1849-1855 (2015); DOI 10, 1007/s00216-014-8433-0 
6. Samuel Clegg, Roger Wiens, Ryan Anderson, Olivier Forni, Jens Frydenvang, Jeremie Lasue, Agnes Cousin, Valerie Payre, Tommy Boucher, Darby Dyer, Scott M. McLennan, Richard V. Morris, Trevor G. Graff, Stanley A. Mertzman, Bethany L. Ehlmann, Ines belgacem, Horton Newsom, Ben C. Clark, Noureddine Melikechi, Alissa Mezzacappa, Rhonda E. McOnroy, Ronald Martinez, Patrick Gasda, Olivier Gasnault, Sylvestre Maurice, “ Recalibration of the Mars Science Laboratory ChemCam instrument with an expanded geochemical databse”, Spectrochimica Acta Part B Atomic Spectroscopy, Volume 129, pp 64-85 (2017);
7. S. Maurice, S. Clegg, R. C. Wiens, O. Gasnault, W. Rapin, O. Forni, A. Cousin, N. Mangold, L. Ledeit, M. Nachon, R. Anderson, N. Lanza, C. Fabre, V. Payré, J. Lasue, P.-Y. Meslin, V. Sautter, J.-B. Sirven, R. Léveillé, N. Melikechi, “ChemCam Activities and Discoveries during the Nominal Mission in Gale Crater, Mars” J. Anal. At. Spectrom., 2016, Accepted for Publication. DOI: 10.1039/C5JA00417A
8. A. Mezzacappa, N. Melikechi, A. Cousin, R.C. Wiens, J. Lasue, S.M. Clegg, R. Tokar, S. Bender, N. L. Lanza, S. Maurice, G. Berger, O. Forni, O. Gasnault, M.D. Dyar, T. Boucher, E. Lewin, C. Fabre, and the MSL Science Team: ”Application of distance correction to ChemCam measurements”, Spectrochimica Acta Part B Atomic Spectroscopy Vol. 120, 19-29, 2016, 11/2015; 115. DOI:10.1016/j.sab.2015.11.002
9. P. Sivakumar, A. Fernández-Bravo, L. Taleh, J. F. Biddle, and N. Melikechi, “Detection and Classification of Live and Dead Escherichia coli by Laser-Induced Breakdown Spectroscopy”, Astrobiology, Vol. 15, No. 2: 144-153 (2015).
10. Sarah C. Jantzi, Vincent Motto-Ros, Florian Trichard, Yuri Markushin, Noureddine Melikechi, Alessandro De Giacomo: Sample treatment and preparation for laser-induced breakdown spectroscopy. Spectrochimica Acta Part B Atomic Spectroscopy 11/2015; 115. DOI:10.1016/j.sab.2015.11.002
11. Poopalasingam Sivakumar, Yury Markushin, Elton Jhamba, Zakaria MRah, Leon A. Taleh, Angel Fernancdez, Noureddine Melikechi, 
12. Nina L. Lanza, Ann M. Ollila, Agnes Cousin, Roger C. Wiens, Samuel M Clegg, Nicolas Mangold, Nathan T Bridges, Daniel Cooper, Mariek Schmidt, Jeffrey Berger, Raymond E Arvidson, Noureddine Melikechi, Horton E. Newsom, Robert L Tokar, Craig Hardgrove, Alissa Mezzacappa, Ryan S. Jackson, Benton C Clark, Olivier Forni, Sylvestre Maurice, Marion Nachon, Ryan B. Anderson, Jennifer Blank, Matthew Deans, Dorothea Delapp, Richard Leveille, Rhonda McInroy, Ronald Martinez, Pierre-Yves Meslin, Patrick Pinet: Understanding the signature of rock coatings in laser-induced breakdown spectroscopy data. Icarus 249, (2015) pages 62-73; DOI:10.1016/j.icarus.2014.05.038. Special Issue: First Year of MSL
13. D. Pokrajac, A. Lazarevic, V. Kecman, A. Marcano, Y. Markushin, T. Vance, N. Reljin, S. McDaniel, N. Melikechi, “Automatic Classification of Laser-Induced Breakdown Spectroscopy Data of Protein Biomarker Solutions” Applied Spectroscopy 09/2014; 68(9). DOI:10.1366/14-07488
14. S.S. Farhana, P. Sivakumar, J. Weekes, N. Melikechi, S. Hossain, D. Fluman, and M. Rana, “Determination of Metals in Leachate by Laser-Induced Breakdown Spectroscopy”, Journal of Solid Waste Technology and Management, 3, 2014, pp. 243-253 (11). 
15. C. Fabre, A. Cousin, R.C. Wiens, A. Ollila, O. Gasnault, S. Maurice, V. Sautter, O. Forni, J. Lasue, R. Tokar, D. Vaniman, N. Melikechi: In situ calibration using univariate analyses based on the onboard ChemCam targets: First prediction of Martian rock and soil compositions. Spectrochimica Acta Part B Atomic Spectroscopy 09/2014; 99. DOI:10.1016/j.sab.2014.03.014
16. Nina L. Lanza, Woodward W. Fischer, Roger C. Wiens, John P. Grotzinger, Ann M. Ollila, Agnes Cousin, Ryan B. Anderson, Benton C. Clark, Ralf Gellert, Nicolas Mangold, Sylvestre Maurice, Stéphane Le Mouélic, Marion Nachon, Mariek E. Schmidt, Jeffrey Berger, Samuel M. Clegg, Olivier Forni, Craig Hardgrove, Noureddine Melikechi, Horton E. Newsom, Violaine Sautter: High manganese concentrations in rocks at Gale crater, Mars. Geophysical Research Letters, 41 (16), 5755-5763 (2014); DOI:10.1002/2014GL060329
17. Noureddine Melikechi, A. Mezzacappa, A. Cousin, N.L. Lanza, J. Lasue, S.M. Clegg, G. Berger, R.C. Wiens, S. Maurice, R.L. Tokar, S. Bender, O. Forni, E.A. Breves, M.D. Dyar, J. Frydenvang, D. Delapp, O. Gasnault, H. Newsom, A.M. Ollila, E. Lewin, B.C. Clark, B.L. Ehlmann, D. Blaney, C. Fabre “Correcting for variable laser-target distances of LIBS measurements with ChemCam using emission lines of Martian dust spectra”, Spectrochimica Acta Part B Atomic Spectroscopy 96, 51-60 (2014).
18. Ann M. Ollila, Horton E. Newsom, Benton Clark, Roger C. Wiens, Agnes Cousin, Jen G. Blank, Nicolas Mangold, Violaine Sautter, Sylvestre Maurice, Samuel M. Clegg, Olivier Gasnault, Olivier Forni, Robert Tokar, Eric Lewin, M. Darby Dyar, Jeremie Lasue, Ryan Anderson, Scott M. McLennan, John Bridges, Dave Vaniman, Nina Lanza, Cecile Fabre, Noureddine Melikechi, Glynis M. Perrett, John L. Campbell, Penelope L. King, Bruce Barraclough, Dorothea Delapp, Stephen Johnston, Pierre-Yves Meslin, Anya Rosen-Gooding, Josh Williams, MSL Science Team, “Trace element geochemistry (Li, Ba, Sr, and Rb) using Curiosity’s ChemCam: Early results for Gale crater from Bradbury Landing Site to Rocknest.” Journal of Geophysical Research Planets 119, 1-31 (2014). DOI:10.1002/2013JE004517
19. Meslin, P.-Y., O Gasnault, O Forni, S Schröder, A Cousin, G Berger, S M Clegg, J Lasue, S Maurice, V Sautter, S Le Mouélic, R C Wiens, C Fabre, W Goetz, D Bish, N Mangold, B Ehlmann, N Lanza, A-M Harri, R Anderson, E Rampe, T H McConnochie, P Pinet, D Blaney, R Léveillé, D Archer, B Barraclough, S Bender, D Blake, J G Blank, N Bridges, B C Clark, L Deflores, D Delapp, G Dromart, M D Dyar, M Fisk, B Gondet, J Grotzinger, K Herkenhoff, J Johnson, J-L Lacour, Y Langevin, L Leshin, E Lewin, M B Madsen, N Melikechi, A Mezzacappa, M A Mischna, J E Moores, H Newsom, A Ollila, R Perez, N Renno, J-B Sirven, R Tokar, M de la Torre, L d'Uston, D Vaniman, A Yingst “Soil diversity and hydration as observed by ChemCam at Gale crater, Mars.” Science 09/2013; 341(6153):1238670, full text online
20. P. Sivakumar, L. Taleh, Y. Markushin, N. Melikechi, “Packing density effects on the fluctuations of the emission lines in laser-induced breakdown spectroscopy”, Spectrochimica Acta Part B-Atomic Spectroscopy 92, 84-89, 2014 DOI:10.1016/j.sab.2013.10.007
21. P. Sivakumar, L. Taleh, Y. Markushin, N. Melikechi, J. Lasue, “An experimental observation of the different behavior of ionic and neutral lines of iron as a function of number density in a binary carbon–iron mixture,” Spectrochimica Acta Part B- Atomic Spectroscopy 82,76–82 (2013). DOI:10.1016/j.sab.2012.11.00
22. R. Wiens, S. Maurice, J. Lasue, O. Forni, R. B. Anderson, S. Clegg, S. Bender, D. Blaney, B. L. Barraclough, A. Cousin, L. Deflores, D. Delapp, M.D. Dyar, C. Fabre, O. Gasnault, N. Lanza, J. Mazoyer, N. Melikechi, P.-Y. Meslin, H. Newsom, A. Ollila, R. Perez, R. L. Tokar, D. Vaniman “Pre-flight calibration and initial data processing for the ChemCam laser-induced breakdown spectroscopy instrument on the Mars Science Laboratory rover” Spectrochimica Acta Part B-Atomic Spectroscopy 82, 1-27 (2013). DOI:10.1016/j.sab.2012.11.00.
23. Aristides Marcano, Isaac Basaldua, Aaron Villette, Raymond Edziah, Jinjie Liu, Omar Ziane, Noureddine Melikechi: Photothermal Lens Spectrometry Measurements in Highly Turbid Media. Applied Spectroscopy 09/2013; 67(9):1013-8. DOI:10.1366/12-06970
24. Jenny Magnes, Kathleen M Raley-Susman, Noureddine Melikechi, Alicia Sampson, Rebecca Eells, Alexandra Bello, Michael Lueckheide: Analysis of Freely Swimming C. elegans Using Laser Diffraction. Open Journal of Biophysics 07/2012; 2(03). DOI:10.4236/ojbiphy.2012.23013
25. Kemal E Eseller, Fang-Yu Yueh, Jagdish P Singh, Noureddine Melikechi: Helium detection in gas mixtures by laser-induced breakdown spectroscopy. Applied Optics 03/2012; 51(7):B171-5. DOI:10.1364/AO.51.00B171
26. Vivek Dikshit, Fang-Yu Yueh, Jagdish P. Singh, Dustin L. McIntyre, Jinesh C. Jain, Noureddine Melikechi: Laser induced breakdown spectroscopy: A potential tool for atmospheric carbon dioxide measurement. Spectrochimica Acta Part B Atomic Spectroscopy 02/2012; 68:65–70. DOI:10.1016/j.sab.2012.01.009
27. J. Lasue, R.C. Wiens, S.M. Clegg, D.T. Vaniman, K.H. Joy, S. Humphries, A. Mezzacappa, N.Melikechi, R. E. McInroy, S. Bender, “Remote Laser Induced Breakdown Spectroscopy (LIBS) for Lunar Exploration”, Journal of Geophysical Research- Planets, Vol. 117, E01002, 18 PP., 2012
28. A. Marcano, F. Delima, Y. Markushin and N. Melikechi, “Determination of linear and nonlinear absorption of metallic colloids using photothermal lens spectrometry”, JOSA B 28, 1 (2012). DOI:10.1364/JOSAB.28.000281
29. Omar Ziane, Aristides Marcano, Hacene Boukari, Noureddine Melikechi: Photothermal Lens Spectoscopy in Highly Scattering Media. Biophysical Journal 02/2011; 100(3). DOI:10.1016/j.bpj.2010.12.2850
30. Jenny Magnes, Margo Kinneberg, Rahul Khakurel, Noureddine Melikechi: Optomechanical shape analysis using group theory. Applied Optics 08/2010; 49(22):4188-92. DOI:10.1364/AO.49.004188
31. Y.  Markushin, A. Marcano, S. Rock, N. Melikechi, “Determination of protein hydrogen composition by Laser Induced Breakdown Spectroscopy”, J. Anal. At. Spectrum., 25, 148-149, (2010). DOI:10.1039/B920384B
32. T. Vance, D. Pokrajac, A. Lazarevic, A. Marcano, Y. Markushin, S. McDaniel and N. Melikechi, "Classification of Laser Induced Breakdown Spectroscopy Protein Spectra Using Multilayer Perceptrons", Transactions on Mass-Data Analysis of Images and Signals 2, 96-111 (2010). ISSN:1868-6451
33. Y. Markushin, N. Melikechi, A. Marcano, S. Rock, E. Henderson, D. Connolly, “LIBS-based multi-element coded assayfor ovarian cancer application” Proceedings, Vol. 7190, Reporters, Markers, Dyes, nanoparticles, and Molecular Probes for Biomedical Applications; 719015 (2209); doi: 10.1117/12.810247
34. M. Benitez, A. Marcano O., and N. Melikechi, “Thermal Diffusivity Measurement using the Mode-Mismatched Photothermal Lens Method”, Opt. Engineer. 48 (4) (2009). DOI:10.1117/1.3119306
35. Steven Rock, Aristides Marcano, Yuri Markushin, Chandran Sabanayagam, Noureddine Melikechi: Elemental analysis of laser induced breakdown spectroscopy aided by an empirical spectral database. Applied Optics 12/2008; 47(31):G99-104. DOI:10.1364/AO.47.000G99
36. A. Marcano O., N. Melikechi, A. Zelinskas, M. Benitez: Pump-probe photothermal lens experiment for measuring the thermal diffusivity coefficient of organic solvents. Proceedings of SPIE - The International Society for Optical Engineering 08/2008; 7049:7-. DOI:10.1117/12.794172
37. A. Marcano O., K. Williams and N. Melikechi, “Measurement of two-photon absorption using the photo-thermal lens effect”, Opt. Comm. 281, 2598-2604 (2008). DOI:10.1016/j.optcom.2007.12.060
38. J. Magnes, G. Schwarz, J. Hartke, D. Burt, and N. Melikechi, “Optomechanical integration method for finite integrals,” Appl. Opt. 46, 6918-6922 (2007).  DOI:10.1364/AO.46.006918
39. A. Marcano O. and N. Melikechi, “Continuous Wave achromatic thermal lens spectroscopy”, Appl. Spectrosc. 61, 659-664 (2007). DOI:10.1366/000370207781269864
40. Marcano O., J. Ojeda and N. Melikechi, “Absorption spectra of dye solutions measured using white-light thermal lens spectrophotometer”, Appl. Spectrosc. 60, 560-563 (2006). DOI:10.1366/000370206777412077
41. O. Ziane, S. Zaiba, and N. Melikechi “Continuum generation in water and carbon tetrachloride using picosecond Nd-YAG laser pulse”, Opt. Commun. 273, 200 (2007). DOI:10.1016/j.optcom.2006.12.014
42. A. Yiannopoulou, N. Melikechi, S. Gangopadhyay, J.-C. Meiners, and E.E. Eyler, “Precise Measurement of EF 1Σ+g Levels in H2, D2, and HD”.  Phys. Rev. A 73, 1 (2006).
43. D. Comeau, A. Hache and N. Melikechi “Reflective thermal lensing and optical measurement of thermal diffusivity in liquids” Appl. Phys. Letts. 83, 246 (2003).
44. K. Amara and N. Melikechi “Coupling efficiency effects of launching a fringe pattern into a single mode optical fiber”  JOSA B 20, 2031-2036 (2003).
45. Marcano O., L. Rodriguez and N. Melikechi, “Thermal lensing in extended samples”, Applied Spectroscopy 56, 1504-1507 (2002).
46. K. M. Amara and N. Melikechi "Enhancement of the coupling efficiency in optical fibers using two-beam optical interference" Appl. Phys. Letts. 80, 3494-3496 (2002)
47. Shabbir. M. Mian, S. Mc Gee, and N. Melikechi “Thermal Effects in Mode-Locked Femtosecond Z-scan Experiments" Optics Communications 207, 339-345 (2002).
48. Shabbir M Mian, Sarah B McGee, Noureddine Melikechi: Experimental and Theoretical Investigation of Thermal Lensing Effects in Mode-Locked Femtosecond Z-Scan Experiments. Optics Communications 06/2002; 207(1-6):339–345. DOI:10.1016/S0030-4018(02)01395-0
49. Ranjit D. Pradhan, Noureddine Melikechi, and Frederick Eichmiller, "The effect of irradiation wavelength bandwidth and spot size on the scraping depth and temperature rise in composite exposed to an argon laser or a conventional quartz-tungsten-halogen source”, Dental Materials 18, 221-226 (2002). DOI:10.1016/S0109-5641(01)00037-9
50. A. Marcano, C. Loper and N. Melikechi “Pump-probe mismatched thermal lens Z-scan" JOSA B, 19, 119 (2002).
51. S. Gupte, R. Pradhan, A. Marcano, N. Melikechi "Laser Damage Studies in Zinc (Tris) Thiourea Sulfate: A Nonlinear Optical Crystal". J. of Appl. Phys. 91, 3125-3128 (2002).
52. A. Marcano, C. Loper, and N. Melikechi “High-sensitivity absorption measurement in water and glass samples using a mode mismatched pump-probe thermal lens method" Appl. Phys. Letts., 78, 3415 (2001).
53. S. Gupte, R. Pradhan, A. Marcano, C. F. Desai and N. Melikechi “Pump-probe thermal lens near infrared spectroscopy and Z-scan of Zinc (Tris) Thiourea Sulfate" J. of Appl. Phys., 89, 4939 (2001).
54. A. Marcano O, N. Melikechi, and G. Verde, " Shift of the Absorption Spectrum of Organic Dyes due to Saturation" Journal of Chemical Physics, 113, 1, (2000).
55. C. Nicole, M. A. Bouchene, S. Zamith, N. Melikechi and B. Girard, "Saturation of wave-packet interferences: Direct observation of spin procession in potassium atoms," Phys. Rev. A 60, R1755 (1999).
56. C. Nicole, M. A. Bouchene, V. Blanchet, N. Melikechi and B. Girard, "Contrôle cohérent temporel par interférences quantiques" Annales de Physique 23, C1, 119 (1998).
57. S. Benaich, R. Pradhan, S.M. Mian, and N. Melikechi “Interference effects in QPM Periodically Segmented KTP Waveguides” Appl. Phys. Letts., 75, 3261 (1999).
58. R. Pradhan and N. Melikechi “Large Enhancement in QPM Second harmonic efficiency by an External Temperature Gradient” App. Phys. Letts., 73, 3809 (1998).
59. M.A. Bouchene, V. Blanchet, C. Nicole, N. Melikechi, B. Girard, H. Ruppe, S. Rutz, E. Schreiber, L. Wöste “Temporal Coherent Control Induced by Wave Packet Interferences in One and Two-photon Atomic Transitions”.  The European Physical Journal D 2, 131-141, (1998).
60. C.H. Cheng, J.T. Kim, E.E. Eyler and N. Melikechi, “Line Shapes and Decay Dynamics of Dissociative Resonances above the Second Dissociation Limit of Molecular Hydrogen”.  Phys. Rev. A. 57, 949-957, (1998). 
61. N. Melikechi, S. Gangopadhyay, and E.E. Eyler, “Efficient Generation of Narrowband Vacuum UV Radiation for Precision Laser Spectroscopy”, Appl. Opt., 36, 7776 (1997).
62. E.E. Eyler, A. Yiannopoulou, N. Melikechi, and S. Gangopadhyay, “Chirp-free Nanosecond Laser Pulses for Precision Spectroscopy”. Opt. Lett. 1, 49 (1997)
63. E.E. Eyler, S. Gangopadhyay, N. Melikechi, J.C. Bloch, and R.W. Field, “FM Spectroscopy with Transform-limited Nanosecond Laser Pulses,” Opt. Lett. 21, 225 (1996).
64. N. Melikechi, S. Gangopadhyay, and E.E. Eyler, “Phase Dynamics in Nanosecond Pulsed Amplification”. JOSA B 11, 2402 (1994).
65. Gangopadhyay, N. Melikechi, and E.E. Eyler, “Optical Phase Perturbations in Nanosecond Pulsed Amplification and Second Harmonic Generation”.  JOSA B 1, 231 (1994).
66. E.E. Eyler and N. Melikechi,“Near-Threshold Continuum Structure and the Dissociation Energies of H2, HD, and D2”.  Phys. Rev. A 48, R18 (1993).
67. L. Allen and N. Melikechi, “Real Intermediate States and The Probability of Two-Photon Absorption”. Sov. J. Quant. Elec. 18 , 716 (1988).
68. N. Melikechi and L. Allen, “Geometry and Polarization In Two-Photon Absorption Followed By Fluorescent Decay”. J. Phys. B. 20, 6207-6224 (1987).
69. N. Melikechi and L. Allen, “A Two-Wavelength Dye Laser With Broadband Tunability”. J. Phys. E. 20 (1987). 
70. N. Melikechi and L. Allen, “Two-Photon Electric Dipole Selection Rules and Nondegenerate Real Intermediate States”. JOSA. B. 3, 41-44 (1986). 
71. A. Lazarevic, D. Pokrajac, A. Marcano, and N. Melikechi, “Support Vector Machine based Classification of Fast Fourier Transform Spectroscopy of Proteins,” Proc. SPIE Photonic West, 2009. DOI:10.1117/12.809964
72. D. Pokrajac, T. Vance, A. Lazarevic, A. Marcano, Y. Markushin, N. Melikechi, N. Reljin, “Performance of Multilayer Perceptrons for Classification of LIBS Protein Spectra”, Proc. NEUREL 2010.
73. T.Vance, N. Reljin, A. Lazarevic, D. Pokrajac, V. Kecman, N. Melikechi, A. Marcano, Y. Markushin, S. McDaniel, “Classification of LIBS Protein Spectra using Support Vector Machines and Adaptive Local Hyperplanes”, Proc. International Joint Conference on Neural Networks, IJCNN 2010, Barcelona, 2010. 
74. C. Tameze, R. Vincelette, N. Melikechi, Vesna Zeljković, Ebroul Izquierdo, “Empirical Analysis of LIBS Images for Ovarian Cancer Detection”, WIAMIS 2007.
75. Robert B. Vincelette, Claude Tameze, N. Melikechi, Vesna Zeljkovic: Empirical analysis of blood plasma LIBS images using different nonlinear diffusion techniques.. Signal and Image Processing (SIP 2007), Proceedings of the IASTED International Conference, August 20-22, 2007, Honolulu, HI, USA; 01/2007