Silicon Photonics

Centre for Programmable Photonic Integrated Circuits and Systems (CPPICS) is one of the centre of excellence (CoE) initiatives by the Ministry of Electronics and Information Technology (MeitY), Govt. of India. It is hosted by Department of Electrical Engineering, IIT Madras with a long-term mission for catering R&D in the area of programmable photonic integrated circuits and systems using CMOS compatible silicon photonics technology for solving various levels of complex problems. The immediate focus of this CoE is to provide better solutions for microwave and quantum photonics applications such as advanced photonic processors to be used in high-performance RF transceivers, scalable linear optical quantum computing (LOQC) processors for the next generation qubit computation, and chip-level quantum key generation and distribution circuits, etc.

Silicon Photonics:

Memory and Logic Devices

PCM is an emerging memory technology exploits unique feature of chalcogenide-based phase change materials that undergo ultrafast and reversible phase transitions between a highly resistive amorphous state (digital “0”) and a conducting crystalline state (digital “1”) using nanosecond (ns) electrical pulses. Such permanent, yet reversible phase transitions (more than 10 million cycles) are stable over 10 years, ensures non-volatility as well as faster programming (ns) and therefore, PCM is being demonstrated as a strong candidate not only for next generation high speed non-volatile memory but also  ‘universal memory’ for future high speed computing devices.

Memory and Logic Devices:


Organic Electronics

Organic Electronics

The AMOLED Research Center (ARC) aims in developing next generation AMOLED displays for smartphones, tablets, watches and wearables. The center is a National Center of Excellence and is funded by MeitY, DRDO, and Tata Sons. The center has researchers from various fields working on developing the displays. The center consists of a state-of-the-art cleanroom which houses fabrication and characterization equipment. The center started functioning from April 2021.

AMOLED Research Center URL:

Gallium Nitride and Wide Band-Gap Device Research

Gallium Nitride and Wide Band-Gap Device Research

Post silicon, Gallium Nitride (GaN) has emerged as the WONDER material that has the potential to disruptively change the future of semiconductor devices. Bolstered by its unique material and device properties, it is finding extensive applications both in power and RF domains; e.g. 5G, Power switches,etc. This technology is expanding to capture the market of electric vehicles, besides being pushed towards application in extreme environments (automobiles, low earth orbit satellites, high temperature and radiation hard application) and even for quantum computing.

At CNNP, GRAND group works towards development of indigenous GaN technologies and systems through detailed physical analysis, to meet the nations need for a sustainable and prosperous future.

GaN GRAND Research

Key Research Areas

  • Indigenous development of GaN device technologies for power and RF applications
  • Study of gate leakage mechanisms in HEMTs and MIS HEMTs
  • Enhancement-mode device using charge engineering in Gate dielectric
  • Indigenous technology development of Fin-MISHEMT with positive Vth of 0.63V
  • Development of GaN-based Passives for enabling Monolithic Integration
  • Design of Spiral Inductors and capacitors to meet the required specifications for GaN based systems, such as power amplifier
  • Fabrication and Characterization of Tapered Spiral Inductors
  • Creation of library for GaN-based inductors ranging from 0.5 – 2 nH
  • Device characterizations and Reliability Analysis of developed GaN-based devices for better reliability-aware designs
  • Compact model for HEMTs developed and validated with available experimental data, both in-house and industrial
  • Salient features of developed Model
    • Unified and continuous expression for 2-DEG charge versus Gate Voltage
    • Accurately predicts DC and AC characteristics
    • Includes secondary effects in the core model
    • Few number of parameters
    • Simple parameter extraction strategy
  • Publications
    • >25 papers in top Journals
    • Regular contributions in top conferences
    • Total citations >500

  • Invited/Keynote Talks
    • Invited and keynote talks in several international conferences/workshops


  • Manpower Development
    • >20 Doctoral and Masters Research scholar trained
    • >30 technical staffs trained


  • Industrial Collaborations & End Users
    • Veeco Instruments Inc., USA
    • United Monolithic Semiconductors (UMS), France
    • Solid State Physics Laboratory (SSPL), Defence Research & Development Organisation (DRDO), New Delhi, India
    • Tejas Networks, India
    • Semtronics, UK


  • Academic Collaborations
    • Purdue University, USA
    • University of Limoges and XLIM, CNRS, France
    • IEMN, CNRS, France

Our 10 year VISION

  • Create a GaN and Wide Band gap material Research Facility comparable to the best in the world doing cutting edge research
  • A Centre which will work closely with industry to provide solutions
  • A self-sustainable Centre with a large number of faculty and students
  • Provide trained manpower for industry
  • Scale up our current technologies to meet industry and market demands
  • Work towards developing novel and reliable GaN and Wide Band gap material-based technologies


Publication List

Faculty NameGoogle scholar link
Amitava DasGuptaPublication Link
Enakshi BhattacharyaPublication Link
Ananth KrishnanPublication Link
Anjan ChakravortyPublication Link
Nandita DasGuptaPublication Link
Bhaswar ChakrabartiPublication Link
Bijoy Krishna DasPublication Link
Boby GeorgePublication Link
Debdutta Ray Publication Link
Deleep R. NairPublication Link
Nagendra KrishnapuraPublication Link
Sayak Dutta GuptaPublication Link
Shanthi PavanPublication Link
Shanti BhattacharyaPublication Link
Soumya DuttaPublication Link
Parasuraman SwaminathanPublication Link
Tiju ThomasPublication Link
Abhishek MisraPublication Link
Aniruddhan SPublication Link
Anuradha BanerjeePublication Link
Ashis Kumar SenPublication Link
Bharath BhikkajiPublication Link
Dhiman ChatterjeePublication Link
Krishnan BalasubramaniamPublication Link
Manoj PandeyPublication Link
Manu JaiswalPublication Link
Prabhu RajagopalPublication Link
Raghavendra Sai V VPublication Link
M. S. Ramachandra RaoPublication Link

M.Tech Student List

NameRoll NumberFaculty Name
Ralph. D . KappithanEE22M004Anjan Chakravorthy
Ajay TurkaEE22M031Anjan Chakravorthy
Arjit DubeyEE22M032Anjan Chakravorthy
Alachandra Bhavanisankar EE22M033Anjan Chakravorthy
Hitesh SainiEE22M035Anjan Chakravorthy
Jeffin ShibuEE22M036Anjan Chakravorthy
Kadivendi HruthikEE22M037Anjan Chakravorthy
Jalapaka Murali Eshwar EE22M038Anjan Chakravorthy
R Vamshi Vardhan GoudEE22M039Anjan Chakravorthy
Sangani Shekar EE22M041Anjan Chakravorthy
Vangala SrinithyaEE22M042Anjan Chakravorthy
Vennapusa DivyaEE22M043Anjan Chakravorthy
S Lavanya PreethiEE21M063Bijoy Krishna Das
Ajith B NairEE23M006Bijoy Krishna Das
AniketEE23M073Bijoy Krishna Das
Dev YadavEE23M074Bijoy Krishna Das
Engeravath Nikhil KumarEE23M075Bijoy Krishna Das
Gudipudi Udaya Bhaskar RajaEE23M076Bijoy Krishna Das
Manish KumarEE23M077Bijoy Krishna Das
Manu Maxim B REE23M078Bijoy Krishna Das
Rahul BhathejaEE23M079Bijoy Krishna Das
Tanmay Vinodbhai PatelEE23M080Bijoy Krishna Das
Tejas Chandrakant ThakareEE23M081Bijoy Krishna Das
Anila RadhakrishnanEE23M105Bijoy Krishna Das
Gorty V V S SukhadeepEE23M049Soumya Dutta
Prashik Bhimrao SadarEE23M054Soumya Dutta
Rohith VorugantiEE23M056Soumya Dutta
SahilEE23M057Soumya Dutta
Satish Venkappa KanakappanavarEE23M058Soumya Dutta
Singu Sai Vamsi TejaEE23M059Soumya Dutta
Sornali SarkarEE23M060Soumya Dutta
Alapati Murali KarthikEE23M045Debdutta Ray
Annaluru R R Sreenivasa MurthyEE23M046Debdutta Ray
B T Bala VinayagamEE23M047Debdutta Ray
Garudadri VasishtaEE23M048Debdutta Ray
Harshit Kumar MeenaEE23M050Debdutta Ray
Joel Roy PalathinkalEE23M052Debdutta Ray
Prabhav TalukdarEE23M053Debdutta Ray
Ramesh CindasiEE23M055Debdutta Ray

Dual Degree Student List

NameRoll NumberFaculty Name

M.S. List

NameRoll NumberFaculty Name
Oad Amit RameshbhaiEE21S105Nandita Das Gupta
Vinay MorEE20S107Amitava Das Gupta
Peddapalli SumanthEE21S106Amitava Das Gupta
Nilanjan DuttaEE20S076Aniruddhan S
Vaibhav ChoudharyEE20S078Aniruddhan S
Pramod S MEE20S139Aniruddhan S
Abhishek BhandariEE21S028Aniruddhan S
Suhas S MEE23S022Aniruddhan S
Ankit AgarwalEE23S052Aniruddhan S
Sovan BarmanEE21S011Anjan Chakravorthy
SuryanshEE22S087Anjan Chakravorthy
Binoy MahatoEE23S014Anjan Chakravorthy
Leela Prashanth Reddy BhimavarapuEE22S014Bhaswar Chakrabarti
AkashEE23S067Bijoy Krishna Das
Shibi ChakaravarthiEE20S143Boby George
Sivasubramanian MEE21S402Boby George
Akhil DasEE22S063Boby George
Fathima IqbalEE22S064Boby George
Vasanth Balaji SmEE22S092Boby George
Elamaran MEE23S032Boby George
Sagar YadavEE21S017Debdutta Ray
Gangam Pavan KumarEE21S015Deleep R Nair
Abhishek KrishnanEE22S300Deleep R Nair
Koutharapu VenkateshEE21S038Shanthi Pavan
Nagabhushana Rao PanilaEE21S039Shanthi Pavan
Keerthana RameshEE23S036Shanthi Pavan
Gajanan M KamatEE23S038Shanthi Pavan
Rahul MEE23S049Shanthi Pavan
Sreeraj P NambiarEE21S022Shanti Bhattacharya
Mathu Mathi MEE21S072Shanti Bhattacharya
Rohit Singh RawatEE21S201Soumya Dutta
AbhilashEE23S012Soumya Dutta