Samir A. Ahmed
Herbert Kayser Professor
Department of Electrical Engineering

• Ph.D, Electrical Engineering, University College London, 1959
• BA, Engineering, Cambridge University, England, 1956
  

Areas of Interest:
Optical Remote Sensing of the Atmosphere and Oceans, Laser Applications, including LIDAR, Spectroscopy and Communications

Contact:
Office: T-553
Tel: (212) 650-5459 / 7250
Fax: (212) 650-8249
E-mail:

Address:
Department of Electrical Engineering
City College and Graduate School
City University of New York
Convent Avenue at 140th Street
New York, NY 10031

For more information:
Visit Prof. Ahmed's Home Page

• A. Gilerson, J. Zhou, S. Hlaing, I. Ioannou, B. Gross, F. Moshary, and S. Ahmed, “Fluorescence Component in the Reflectance Spectra from Coastal Waters. II. Performance of retrieval algorithms,” Optic Express, 16, 2446-2460, 2008.
• A. Gilerson, J. Zhou, S. Hlaing, I. Ioannou, J. Schalles, B. Gross, F. Moshary, and S. Ahmed, “Fluorescence component in the reflectance spectra from coastal waters. Dependence on water composition,” Optics Express, 15, 15702-15721, 2007
• Daniela Viviana Vladutescu, Barry Gross, Fred Moshary, Wu Yonghua, Samir Ahmed “Water vapor mixing ratio using different lidar calibration techniques’, WSEAS Systems Transactions. v. 6, 651-8 (2007)
• Y. Hassebo, B. Gross, M.M. Oo, F, Moshary, S. Ahmed., “ Polarization-discrimination technique to maximize the lidar signal-to-noise ratio for daylight operations APPL OPTICS 45 (22): 5521-5531 (2006)
• Gilerson, .J Zhou, M. Oo, J. Chowdhary, B. Gross, F. Moshary, and S. Ahmed “Retrieval of fluorescence from reflectance spectra of algae in sea water through polarization discrimination: modeling and experiments”, Applied Optics, 45, No 22, pp. 5568-5581 (2006)
• J. Zhou, F. Moshary, B. Gross, and S. Ahmed “Particle size and refractive index retrieval from the backscattering spectrum of white light using the Twomey iterative method (TIM): simulation and experiment”, Applied Optics 45, No 26, pp. 6876-6885 (2006)
• R. Agishev, B. Gross, F. Moshary, A. Gilerson, S. Ahmed “Range-resolved pulsed and CWFM lidars: Potential capabilities comparison”, Applied Physics B: Lasers and Optics 85 (1), pp. 149-162 (2006)
• R. Agishev, B. Gross, F. Moshary, A. Gilerson, S. Ahmed “Simple approach to predict APD/PMT lidar detector performance under sky background using dimensionless parametrization “, Optics and Lasers in Engineering 44 (8), pp. 779-796 (2006).
• Benjamin R. Herman, Barry Gross, Fred Moshary, Samir Ahmed, “Determination of confidence bounds for the graphical estimation of Particle Size Distribution Parameters from Optical Backscatter and Extinction Measurements”, Applied Optics, 44, 6462-6473 (2005).
• R. Agishev, B. Gross, F. Moshary, S. Ahmed, A. Gilerson “Development of a SNR parameterization scheme for general lidar assessment”, Applied Physics B: Lasers and Optics 80 (6), pp. 765-776 (2005)
• S. Ahmed, A.Gillerson, A.Gill, B.M. Gross, F.Moshary, J.Zhou , “Separation of Fluorescence and Elastic Scattering from Algae in Seawater Using Polarization Discrimination”, Optics Communications vol.235, no.1-3 : 23-30 (2004).
• R. Agishev, B.Gross, F.Moshary, A.Gilerson, S.Ahmed, “Atmospheric CW-FM-LD-RR-ladar for trace constituent detection: a concept development”, Applied Physics B: Lasers and Optics, vol.81, No.5, pp.695-703 (2005)
• Ravil Agishev, Adolfo Comeron, Barry Gross, Fred Moshary, Samir Ahmed, Alexander Gilerson, Valery Vlasov, “Application of the method of decomposition of lidar signal-to-noise ratio to the assessment of laser instruments for gaseous pollution detection”, Applied Physics B: Lasers and Optics, Vol. 79, No. 2, pp. 255-264 (2004).
• J. Zhou, F. Moshary, B. Gross, M. Arend, and S. Ahmed, ‘Population Dynamics in Yb3+,Er3+ Co-Doped Phosphate Glass’, Journal of Applied Physics vol.96, no.1 : 237-41 (2004).
  
  

  RECENT MAJOR AWARDS:

• PI ONR – NRL Stennis Imrovements of Techniques for Retrievals of Bio-Optical Properties of Coastal Waters (2007-2010)

• PI, NOAA Interdisciplinary Science & Environmental Technology Center, 2007-2012).

• PI &n Director NASA University Research Center for Optical Sensing and Imaging, 2003-2008

• CUNY Campus PI, Cooperative Center for Remote Sensing Science and Technology (CREST), NOAA (2002-2011).

• Co-PI (CCNY), Mid-Infrared Technologies for Health and the Environment (MIRTHE), NSF Engineering Research Center, 2006-2011).

• Co-PI and Chief Scientist NASA PAIR (Atmospheric Remote Sensing) 1998-

• Co-PI d Chief Scientist US Agency for International Development (Modular Water Treatment) 2000-01,

• PI GER Inc. (Remote Environmental Sensing of Water Quality) 1999-2001

• Co-PI NASA (Atmospheric Remote Sensing) 1997-99

• Co-PI and Chief Scientist US Agency for International Development (Water Purification) 1995-99

• PI- NYSERDA IR Techniques for Vehicular Traffic Monitoring 1993-1995.

• PI ARPA Fiber Optical Communications Systems 1993-6