RESEARCH ACTIVITIES AND INTERESTS

Optical Devices, Processors, Sensors:

•  Nano and metamaterials based photonic sensors
•  Design and Packaging of low-cost fiber optic sensors 
•  Design and Modeling of MEMS Actuators
•  Wireless Monitoring of Health Conditions

Optical Interconnects and Free Space Optics:

• Alignment considerations in package design for optical interconnects and processors
• Low cost optical IDs.
• Chaos based optical communications
• Optical wireless based Wireless Sensor Networks
  

Fiber Optic Communications:

•  Design of optoelectronic switches and processors.
•  Applications and performance analysis of nonlinear optical loop mirrors

RESEARCH SUPPORTS

“Upgrading an existing laboratory to an advanced end-to-end networking laboratory”, US Department of Defense, Air Force Research Lab., ($549,000, Aug. 2010-July 2011) jointly with Dr. P. Verma, Dr. S. Cheng, Dr. J. J. Sluss, Jr., University of Oklahoma Tulsa

“Commercial vehicle route tracking using video detection”, Oklahoma Transportation Center, ($84,938, Jul. 2009 – Jul. 2011) jointly with Dr. S. Cheng, Dr. P. Verma, Dr. J. J. Sluss, Jr., and R.C. Huck, University of Oklahoma Tulsa.

"Fog Vision for Indian Railways", Railway Technology Mission, Ministry of Human Resource Dev. and Ministry of Railways, Govt. of India (Rs. 20,000,000, Apr. 2005 - Aug. 2008) jointly with Dr. U Das, and Dr. S.N. Tripathi, IIT Kanpur.

PATENT

S. Pal and A. Ghosh, "Optimal actuation of a MEMS cantilever by a laser beam", Optomechatronic Actuators, Manipulation and Systems Control: Proc. SPIE, Vol. 6374, p. 63740O, Oct. 2006.

A. Ghosh, P. Gupta Bhaya, V. Saxena and J. John, "Design and calibration of low-cost fiber optic sensors for refractive index measurement of turbid liquids", Chemical and Biological Sensors for Industrial and Environmental Monitoring II: Proc. SPIE, Vol. 6378, p. 63780V, Oct. 2006.

A. Ghosh, P. Verma, S. Cheng and A. Venugopalan, “A free space optics based identification and interrogation system”, Proc. of IEEE 2007 Conference on Technologies for Homeland Security, Boston, May 2007.

A. Ghosh, V. Siddarth, M. Bhagat, S. Aggarwal, P. Anurag and M. Jain, “Surface plasmon resonance based optical sensor design using spatial filtering", Optics and Photonics for Information Processing: Proc. SPIE, Vol. 6695, p. 669506,  Aug. 2007.

A. Venugopalan, A. Ghosh, P. Verma and S. Cheng, “Performance of an Optical identification and interrogation system”, Enabling Photonic Technologies for Defense, Security, and Aerospace Applications IV: Proc. SPIE, Vol. 6975, p. 69750C, Mar. 2008.

A. Ghosh, P. Verma and A. Venugopalan, “Free space optics based sensor network design”, Proc. of NATO IST-083  Military Communications with a special focus on Tactical Communications for Network Centric Operations, Prague, Apr. 2008.

P. Verma, A. Ghosh, R. Huck, S. Cheng, S. Chen, M. Martens and A. Kaul, “Continuous wireless monitoring of the cervical dilation of a pregnant woman”, Proc. 2008 IEEE International Workshop on Medical Measurements and Applications, Ottawa, May 2008.

A. Ghosh and S. Pal, “A MEMS device for measuring laser power and spot-size”, Quantum Sensing and Nanophotonic Devices VI: Proceedings of SPIE, Vol. 7222, pp. 72220N-1 to 72220N-5, Jan. 2009. DOI: 10.1117/12.807342.

A. Ghosh, D. Arora, P. Verma, R. Huck and J. Fagan, “A nanophotonic sensor for large electric current measurements,” in above, pp. 72221C-1 to 72221C-4. DOI: 10.1117/12.807345.

A. Ghosh, P. Verma, R. Huck and S. Cheng, “Mobility in free-space optics based sensor networks”, Wireless Sensing and Processing IV: Proceedings of SPIE, Vol. 7349, pp. 73490J-1 to 73490J-8, Apr. 2009. DOI: 10.1117/12.819098.

A. Ghosh, P. Verma, S. Cheng, R.C. Huck, M.R. Chatterjee, and M. Al-Saedi, “Design of Acousto-optic chaos based secure free-space optical communication links”, Free-space Laser Communications IX: Proceedings of SPIE, Vol. 7464, pp. 74640L-1 to 74640L-6, Aug. 2009. DOI: 10.1117/12.826813.

R. Aylo, P. P. Banerjee, A. Ghosh and P. Verma, “Design of metamaterials based photonic sensors for pressure measurement”, Integrated Optics: Devices, Materials, and Technologies XIV: Proceedings of SPIE, Vol. 7604, Jan. 2010.

M. R. Chatterjee, A. Ghosh and M. Al-Saedi, “Performance measures in acousto-optic chaotic signal encryption system subject to parametric variations and additive noise”, Proceedings of SPIE, Vol. 7814, Aug. 2010.

A. Ghosh, S. Kunta, P. Verma and R. Huck, “Free-space optics based sensor network design using angle-diversity photodiode arrays”, in above.

A. Ghosh, P. Verma, P. Banerjee and R. Aylo, “Propagation of a Gaussian beam through a stack of positive and negative refractive index materials”, Proceedings of SPIE, Vol. 7754, Aug. 2010.

Invited Talk:

A. K. Majumdar, Z. Xu, G. Chen, A. Ghosh, “Exploring UV communications for non-line-of-sight (NLOS) free-space-optics (FSO) communications”, presented in IEEE MILCOM, Nov. 2010.

A. Ghosh and P. Verma, “Characterization of chaos generated by bistable optical systems with a nonlinearity of the form sin²(x_n)” to be presented in the conference on Free-Space Laser Communication Technologies XXIII, SPIE Photonics West, San Francisco, 2011.