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Adjunct Senior Lecturer

Telephone:	(61 8)  6304 2589
Mobile:	0432187226
Facsimile:	(61 8)  6304 5302
Email:	n.das@ecu.edu.au
Campus:	Joondalup
Room:	JO8.237

 

Staff Qualifications

• Doctor of Engineering, Japan, 2000 .
• Bachelor of Science, Bangladesh, 1998 .
• Master of Science in Electronic Engineering, Bangladesh, 1996 .

Research

Recent Research Grants

• Design and development of high-speed metal-semiconductor-metal photo-detector with nano-gratings for telecommunication applications,  Nortel Networks,  Grant - Development,  2011,  $23,000.

Recent Publications (within the last five years)

Journal Articles

• Das, N., Karar, A., Tan, CL., Vasiliev, M., Alameh, K., Lee, YT., (2011), Metal-semiconductor-metal (MSM) photodetectors with plasmonic nanogratings. Pure and Applied Chemistry, 83(11), 2107-2113, DOI: 10.1351/PAC-CON-11-01-13.
• Karar, A., Das, N., Leongtan, C., Alameh, K., Tak Lee, Y., Karouta, F., (2011), High-responsivity plasmonics-based GaAs metal-semiconductor-metal photodetectors. Applied Physics Letters, 99(13), art. no. 133112 (1-3), DOI: 10.1063/1.3625937.
• Das, N., Karar, A., Vasiliev, M., Tan, CL., Alameh, K., Lee, Y., (2011), Analysis of nano-grating-assisted light absorption enhancement in metal-semiconductor-metal photodetectors patterned using focused ion-beam lithography. Optics Communications, 284(6), 1694-1700, DOI: 10.1016/j.optcom.2010.11.065.
• Hosseini, SR., Razaghi, M., Das, N., (2011), Analysis of ultrafast nonlinear phenomena's influences on output optical pulses and four-wave mixing characteristics in semiconductor optical amplifiers. Optical and Quantum Electronics, 42(11-13), 729-737 , DOI: 10.1007/s11082-011-9463-x.
• Das, N., Karar, A., Tan, CL., Alameh, K., Lee, YT., (2011), Impact of nanograting phase-shift on light absorption enhancement in plasmonics-based metal-semiconductor-metal photodetectors. Advances in Optical Technologies, 2011(Article ID 504530), 1- 8, DOI: 10.1155/2011/504530.
• Das, N., Karar, A., Vasiliev, M., Tan, CL., Alameh, K., Lee, Y., (2010), Analysis of nano-grating-assisted light absorption enhancement in metal?semiconductor?metal photodetectors patterned using focused ion-beam lithography. Optics Communications, n/a(n/a), 7p., DOI: 10.1016/j.optcom.2010.11.065.
• Das, N., Karmakar, N., (2008), Nonlinear propagation and wave mixing characteristics of pulses in semiconductor optical amplifiers. Microwave And Optical Technology Letters, 50(5), 1223-1227.

Conference Publications

• Razaghi, M., Gandomkar, M., Ahmadi, V., Das, N., Connelly, MJ., (2011), Numerical analysis of wavelength conversion based on semiconductor optical amplifier integrated with microring resonator notch filter. 2011 11th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 101-102, Piscataway, N. J., DOI: 10.1109/NUSOD.2011.6041160.
• Hosseini, SR., Razaghi, M., Das, N., Ahmadi, V., (2011), Input pump pulse energy optimisation to maximise four-wave mixing conversion efficiency in semiconductor optical amplifier. 2011 19th Iranian Conference on Electrical Engineering, ICEE 2011, 682-685.
• Das, N., Karar, A., Tan, CL., Alameh, K., Lee, Y., (2010), Impact of metal nano-grating phase-shift on plasmonic MSM photodetectors. Proceedings of the 7th International Symposium on High Capacity Optical Networks & Enabling Technologies, 6p., Cairo, Egypt.
• Das, N., Karar, A., Tan, CL., Vasiliev, M., Alameh, K., Lee, Y., (2010), MSM Photodetectors with Plasmonic Nano-Gratings. Proceedings of International Conference on Nanomaterials and Nanotechnology (NANO- 2010), 377-382, India.
• Karar, A., Das, N., Tan, CL., Alameh, K., Lee, Y., (2010), Design of High-Sensitivity Plasmonics-Assisted GaAs Metal-Semiconductor-Metal Photodetectors. High-Capacity Optical Networks and Enabling Technologies (HONET), 2010, 138-142, Piscataway, N.J., DOI: 10.1109/HONET.2010.5715761.
• Das, N., Karar, A., Vasiliev, M., Tan, CL., Alameh, K., Lee, Y., (2010), Groove Shape-Dependent Absorption Enhancement of 850 nm MSM Photodetectors with Nano-Gratings. Nanotechnology (IEEE-NANO), 2010 10th IEEE Conference on, 289-293, Piscataway, N.J., DOI: 10.1109/NANO.2010.5697754.
• Tan, CL., Lysak, V., Das, N., Karar, A., Alameh, K., Lee, Y., (2010), Absorption Enhancement of MSM Photodetector Structure with a Plasmonic Double Grating Structure. Nanotechnology (IEEE-NANO), 2010 10th IEEE Conference on, 849-853, Piscataway, N.J., DOI: 10.1109/NANO.2010.5697989.
• Das, N., Tan, CL., Lysak, V., Alameh, K., Lee, Y., (2009), Light absorption enhancement in metal-semiconductor-metal photodetectors using plasmonic nanostructure gratings. High-Capacity Optical Networks And Enabling Technologies (HONET), 2009 6th International Symposium On, 86-90, Piscatawaay, NJ., DOI: 10.1109/HONET.2009.5423095.