Progress report

Signature: Signature Name : P. K. Basu Name: Prof. Basab Chaudhuri Programme Coordinator (Phase IV: 2005-2010) Registrar University of Calcutta

ANNEXURE I

Research : Major Achievements
During the last five years the faculty members of the Centre conducted research in the following emerging areas.

Solid State Electronics & Circuits (including VLSI & Nanoelectronics)

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  Transport and Magnetotransport of Low Dimensional Systems,
  
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  Nanoscale MOSFETs
  
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  Quantum Ring,
  
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  Photodetectors
  
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  Silicon Photonics
  
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  Direct Gap Type I GeC/GeSiSn Heterojunctions
  
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  Ge/SiGe RCE Photodetectors (QCSE and FKE)
  
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  Prediction of band offsets of the ternary alloy Si_1-x-ySn_xC_y on Si
  
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  Feasibilty of Laser Action in Strained Ge and Group IV Alloys on Si Platform
  
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  A compact drift-diffusion current model of strained-Si-Si_1-xGe_x MOSFETs
  
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  Ge/Si Photodetectors and Group IV Alloy Based Photodetector Materials
  
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  Transistor Laser.
  
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  VLSI Devices and Circuits
  

Microwave and Lightwave Technology

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  IMPATTs based on Wide Bandgap Semiconductors (SiC and GaN):
  
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  Experimental work on IMPATT
  
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  Left Handed Materials (Metamaterial)
  
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  SOA Based Optical Signal Processing
  
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  Conducting Polymer
  
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  Growth of III-Nitrides and Related Devices
  
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  Optical Communication
  
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  Microwave Antenna
  

Space and Atmospheric Science and Communication

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  Classification of rain types based on DSD measurements
  
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  Modelling of rain rate and rain attenuation
  
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  Modeling of cloud liquid water and cloud attenuation
  
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  Interrelation between water vapor, cloud liquid water and rain
  
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  Micro Rain Radar to study the vertical profile of rain rate, radar reflectivity during a storm
  
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  Utilization of TRMM data to study the rain and comparison with ground based measurements
  
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  Rain event duration study
  
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  Micro Rain Cell study
  
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  Ionospheric Delay Modeling for Navigational Applications
  
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  GPS TEC and Phase Fluctuations
  
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  Development of Ionospheric Scintillation Models
  
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  Detection of Travelling Ionospheric Disturabnces (TIDs) associated with the solar eclipses of July
  
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  22, 2009 and January 15, 2010 by GPS TEC monitoring
  

Systems Science

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  Computer Aided Diagnostics
  
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  Medical Image Acquisition
  
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  Computational Geometry, Graph Theory
  
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  Genomic Signal Processing
  
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  Encryption
  

The research led to a number of publications in peer reviewed journals and in national/international conferences, the proceedings of which are included in IEEE Xplore. A yearwise publication is given in the following Table. A detailed list is given in Annexure VII.