Good day, Dr. S. Nagarajan. I'm Arjun. I've had a look through your background and your professional record. I'm interested in hearing more about your work and how you see yourself fitting in here with our faculty. Ready to start?

Please start by introducing your professional journey in academia.

I'm Dr. S Nagarajan, thank you for giving opportunity to introduce myself.

Completed my postdoctoral. Sorry, I I have completed my PhD in 2019.

From another university.

My research area focuses on VLSI nano devices.

Under the component is Hemped High Electron mobility transistor which will useful for high frequency and low power applications.

Understood,

And I have received my Master of Engineering.

In Apple Electronics from Anano city in 2004 and be an Electrical and Electronics Engineering from Madras University in 2001. Both are first class. I have around 21 years of teaching experience in various reputed institution like SRM Institute of Science and Technology, Savita Engineering College, SKP Engineering College and Doctor Mgr. University.

My teaching interest includes digital signal processing.

Digital image processing VLSI.

And I have.

An anniversary gate ship along with.

Sr. myest gate ship to gate the students PhD scholars. I have two PhD scholars in SRM IST.

And I have published.

More than 10 papers.

And reputed journals.

Like a Springer Willy.

And I hold around UH-5 patterns published on grants.

Etcetera.

And part time program coordinator.

UH, conducting several UH, faculty development programs, conferences, et cetera. And I have published the textbook of Electronic Circuits 2 in 2023.

For undergraduate students.

Thank you for providing the detailed overview of your academic accomplishments and experience, Professor. Let us proceed and evaluate your skills and expertise further. To begin, could you elaborate on your experience with teaching theory and laboratory courses, with specific examples to illustrate your teaching methodology?

Yes, I have handled a digital signal processing.

For undergraduate students, which includes laboratory also.

That has a Matlab.

Software S the digital signal processing fair filter, IER filter. The designs integrated with the laboratory courses so students can easily understand by simulating and getting the results they are comparing theoretical as well as practical results they are able to understand easily.

That’s a well-structured approach, integrating theory with practical application. How do you measure whether students have effectively grasped the material in both the theoretical and practical components?

Anyway, we are in laboratory only. We are monitoring how the students are executing the.

Codings along with if they are made any mistakes, we are explaining where the mistake happens accordingly students getting proper results so we can measure where the problem arises with students.

Monitoring and providing immediate feedback is a crucial part of effective teaching. Beyond lab performance, how do you evaluate and track a student’s comprehension and progress throughout the course?

We have different Padagaki techniques, so assignments, monthly examinations, university examinations.

Are different categories like flipped classroom, activity based learning, project based learning et cetera. Based on that we can monitor the students performance and we can find the students are slow learners or fast learners. Accordingly we can manage the students.

It sounds like you’ve implemented a variety of pedagogical strategies to support different learning styles. With that clarity, let's move forward. Could you describe your approach to guiding student projects or research, particularly at undergraduate and postgraduate levels?

Yes. So based on the students interest.

On that period suppose fine layer students having more interest in a based or digital signal processing or image processing. Accordingly I am getting the students.

To write the codings how the uh lattice technologies, what are the research gaps while while they are preparing papers for presentation in any seminars and conferences. So accordingly, we are gearing them.

Yes.

This.

Could you elaborate on how you ensure that the projects align with current research trends and industry needs?

Yes. So based on the publications.

They are taking for literature survey. So they are taking IEEE papers and Springer papers that logins are available in college itself. So the students getting latest papers around 2020 two 2025 so they are taking literature survey of various papers.

So from the papers so we can find where the research gap is there. So accordingly we can inform the students how to overcome it and based on that.

I gave the student to present papers in conferences.

Thank you for explaining your approach. Literature surveys and identifying gaps are indeed pivotal steps in guiding impactful research. Let's shift to another area of your expertise: can you elaborate on your experience in image processing, particularly regarding any challenges or innovations you’ve addressed in this field?

The image pressing.

Applicable to medical field.

As well as latest mobile technologies and all.

So the medical field ECG.

EG and the hearing.

Headphones, so likewise MRI.

X-ray in different parts of places.

The digital image processing plays important role so on that case.

Drowsiness that means, suppose a driver driving a car, so during night time.

For example.

Travel so any drowsiness is there so image camera can identify that and it will alert to the driver.

So accordingly the driver wake up and drive there car as well as in the traffic signals. So where the car and another vehicle is running faster than the limited speed that also can recognize by the image processing by checking the.

Speed of the vehicle accordingly it is possible.

Your examples demonstrate the practical applications of image processing in critical areas like medical diagnostics, transportation safety, and traffic monitoring. Could you provide more insight into the specific technologies or techniques you’ve implemented in your image processing work, such as algorithms or tools used?

So usually we are using MATLAB.

For analysis of skin cancer, blood cancer or any heart related diseases.

So accordingly.

Where the problem appears so we are taking the image and we can segment it and analyze with the help of filters and all and we are comparing the correct without any disease that image along with the issue where the problem happens and comparing that accordingly we can do the modification.

And we are trying to diagnose and we are getting the solution for that issues.

It is clear that you utilize MATLAB's analytical capabilities effectively for medical image diagnosis. How do you ensure the accuracy and reliability of your image segmentation and filtering results in these medical applications?

Please read the comparison of uh results, uh, before diagnosis and after diagnosis, how the results are improving based on that we can.

Conclude that. Whether we are my hour.

Outputs properly getting or not. Accordingly we can decide it.

Decisions that means our.

Got it. Comparing pre- and post-diagnosis results is indeed a solid method to validate outcomes. Let’s now assess your contributions in guiding research. Could you elaborate on your published works in terms of their focus and impact, particularly in reputed journals like Springer or Wiley?

Yes, my research mostly based on devices level VLSI nano devices. So actually the research gap is the same as the device.

If we integrate more and more components inside to get a better speed and.

More.

Frequency analysis, it will give some shorts channel effects. So for that we need to go for alternative devices and components like that to group component and all. So in DM aluminum, gallium arsenide etcetera based on that we are moving alternative devices also like hemp that is high electron mobility transistor, the high electron mobility transistor having two-dimensional electron gas so.

Speed of electron movement, that means charge carrier movement is very.

...more

Hi, so as well as we are having double metal double gate.

Control. So based on that, electrostatic control is very best.

So the charge tunnel effects are very less in hemp devices.

As well as we are optimizing the channel length, channel thickness.

Barrier thickness.

And different components accordingly. We can get the range of drain, current, transconductance, maximum frequency, cut off frequency. So these analysis can improve. We can get the.

Frequency in gigahertz. So these gigahertz frequencies are applicable for lattice to 5G6G communication technologies and IoT etcetera. So the VLSI, not only VLSI simple technology also the applications are very wide.

So the publications accepted our papers in Willie Springer and all so the high frequency analysis useful for latest communications.

Technologies.

Your research on VLSI nano devices and the advancements you've made in high-frequency analysis for emerging technologies like 5G, 6G, and IoT is impressive and highly relevant. One last question regarding your research: how do you ensure that your publications address real-world challenges and make meaningful contributions to both academia and industry?

The same 65G6G, the latest communication applications and all we are executing.

So that application useful for our mobile devices, all electronic devices which needs high.

Frequency and high speed.

Particularly the fiber optic communication and all high frequency signals, these things are required.

So that only the industry people also required.

So that we are made through.

Our device analysis that means we are optimizing the device by reducing the leakage current and we are increasing the speed and all accordingly. We are getting better cut off frequency and maximum frequency that will useful for industrial applications also.

Thank you for elaborating on how your research translates into real-world and industrial applications, particularly in advancing communication technologies. Let’s move to your teaching approach—how do you ensure clear communication and a structured methodology when teaching advanced topics to students?

Dermatologists and sexual metrologies.

Yes, that is based on.

Umm, project based learning and.

PPT, uh, latest technologies, whatever available that ICT tools based on that we are interacting to the students.

Using ICT tools and project-based learning is indeed an effective approach for advanced topics. How do you handle situations where students struggle to grasp complex concepts or fall behind in understanding?

Yes, if any issues faced by the student so we have virtual lab.

Components. So based on that we are showing the simulation the students able to understand it.

So based on that.

We can analyze where the lagging of students and where they are getting trouble. Accordingly, we can simplify the concepts.

And we can simulate it with the help of different tools like virtual lab components as well as MATLAB and the tools TCAD, et cetera.

Your use of tools like MATLAB, TCAD, and virtual labs to address student challenges demonstrates a thoughtful and resourceful teaching approach. Let me now verify one final area: can you elaborate on your industry project or consultancy experiences and how they complement your academic work?

Industrial project and consultancy experiences.

Consultancy experiences, but I have applied the funded project for ICSS or it is IAA enabled Public health survivalence.

Actually, I don't have uh.

So.

Maybe that will useful.

To get the funded project.

Understood, your efforts in pursuing funded projects demonstrate initiative and alignment with industry-relevant applications. Thank you for clarifying this aspect. I have completed verifying all the necessary focus areas. Let me finalize this segment now.

Yes.

Professor, to begin, could you share an example of a foundational concept in your field that you particularly enjoy teaching to your students?

Father particularly enjoy teaching too.

OK.

So the fiber optic communication subject also is handled. So how the fiber optics?

In real world approach, how the fiber optics are installed in.

Home colleges are somewhere where the problems occurs and all so that I practically explained by bringing the fiber optics components and I gave the some demonstration also in classrooms.

So based on that, the students can easily understand so how the fiber optics even though the fiber optics communication subject only theoretically subject by I print the components related to the.

Fiber optics technology devices. So students are happy. They are learned very well.

Ah, I see. It's commendable that you're bringing hands-on demonstrations into a theoretically heavy subject like fiber optic communication. Showing real-world components helps bridge the gap between theory and practice, ensuring students grasp concepts more effectively. Thank you for sharing.

Dr. Nagarajan, I see that you've earned a Ph.D. in VLSI (Nano Devices) and have published multiple research papers in SCI and SCOPUS-indexed journals. Additionally, you’ve been granted a patent for a device to detect the happiness of a teacher. Could you elaborate on one of your most impactful research papers? Specifically, share its main findings and how you see it influencing the field of VLSI or related domains.

Sorry to interrupt, we're down to the last 5 minutes.

The publications based on patterns. So how we are getting the results? Based on the results we are registering the results.

As patterns accordingly we are getting the patterns published and some papers getting grant also.

Then VLSI.

And multidisciplinary is required because, as I told earlier, the VLSI not only for.

Particular.

BLSA also that applications are vast.

So based on that the applications we are using in multidisciplinary areas also and if I have multidisciplinary areas papers, if I publish the papers and multidisciplinary areas and I can get the research students also in multidisciplinary areas.

That's why we are doing multidisciplinary research, patterns, publications.

Thank you, Professor Nagarajan. It's insightful to hear your emphasis on multidisciplinary research and its role in expanding applications of VLSI. You mentioned the importance of multidisciplinary papers as a means of attracting research students. Could you elaborate on how your work has directly influenced or shaped the academic growth or research output of your students so far?

So my research can helpful for students to.

Yes.

Publish their papers in conferences and.

Sultans able to understand the VLSI technology concepts and they can participate in the hackathons, seminars and all. So that is for my research can helpful for students after they are learning.

The concepts as well as they did some simulation parts. So accordingly they are publishing papers in IEEE conferences, seminars and they are participating hackathon and all.

That's an excellent outcome, Professor Nagarajan. Cultivating research capabilities in students and enabling them to contribute to IEEE conferences and participate in hackathons is a significant accomplishment. One follow-up: How do you approach the challenge of translating advanced VLSI concepts, which are often highly specialized, into material that is accessible and engaging for undergraduate students or those new to the topic?

So VLSI as well as signal process.

So that combined part then helpful the students for medical applications like.

Hearing, hearing aid, cancellation of noise and all so on that case.

The devices are getting miniature.

So using the different algorithms they are running different algorithm and based on that we are optimizing the components and accordingly we are reducing the noise and etcetera by increasing more filters in using digital signal processor applications. So the students getting more idea in the advanced field.

Thank you, Professor Nagarajan. You’ve highlighted a thoughtful integration of VLSI and signal processing concepts, particularly in areas like medical applications—hearing aids, noise cancellation, and optimization techniques using advanced algorithms. One final question: How do you ensure your teaching methods stay current with the latest advancements in these rapidly evolving fields, specifically in VLSI and signal processing?

So that would be so the students can.

LSI and Signal processing based IEEE papers and Springer papers so the students able to understand where we are.

So accordingly, we can.

Modify and we can get all the research areas and we are improving our research areas.

Professor, I appreciate your emphasis on aligning research areas with LSI and signal processing advancements in IEEE and Springer papers. Let us delve into your vision and execution. Could you walk me through your proposed 3-year research roadmap for this domain and how you plan to ensure this work aligns with institutional priorities?

Our scheduled time for the interview is now up. Before we conclude, do you have any questions related to the role or the company?

So three years plan.

I'm able to do.

By applying some funded projects so accordingly we can get the secured projects.

I can able to get the students.

For publishing more papers and to get the placements also.

Understood, Professor. Securing funded projects as part of your 3-year roadmap is an integral step. May I ask, how do you intend to scale your lab operations to mentor junior students effectively, ensuring a consistent pipeline of high-quality publications alongside their development?

By choosing the latest technology and by doing accuracy projects, that means some software.

Having low accuracy, some like T care softwares and all very high accuracy.

So based on that they can get.

Publication of papers in high-impact thermal also like a computational electronics channel and all it is very good for students and they can do the.

Master degree. Postdoctoral degree.

Are there field itself where they are doing the papers in the fine layer project itself? They can go for same area and they can get the advancements and all they can grow their life based on this one.

I see, Professor. Focusing on high-accuracy projects and targeting advancements in computational electronics and similar high-impact areas is a solid approach to training students for their academic growth. Now, building on your goal to publish in high-impact journals and nurture students, how would you leverage international collaborations to further enhance both your lab's output and boost citation metrics?

The international collaborations by doing Mou.

The movie is possible along with some.

Industrial collaborations for by consultancing and consultancy.

And internship for students also.

That can be possible. Through that I'm able to get.

From industry also and we can communicate with the industry what is the technology latestly going on industry that we can able to transfer to our VAT student and the VAT students also able to understand what is the things.

All secured fund.

Can be done accordingly. We can do it.

Thank you, Professor, for outlining your strategies for leveraging MOUs, consultancy, internships, and industrial collaborations to boost funding and transfer cutting-edge technology to students. This comprehensive approach highlights a strong awareness of institutional goals and student outcomes. I have everything I need for this section. We'll proceed now.

Professor, could you elaborate on how you would implement an active learning model, such as a flipped classroom, in a large-enrollment course while avoiding reliance on traditional lecture slides?

Yes, so flipped classroom students can learn some basic things.

Like that professor how they are explained to Sudan, the students first learn their concepts from textbook.

So.

Then the students can group among them, I think, and pair the minute paper.

Likewise.

Some think and power like with different pedicology pathology techniques are there so based on the student able to understand the concepts.

I see where you're going with this idea, Professor. Active learning through a flipped classroom can certainly be impactful for large classes when implemented well. Could you provide a bit more depth on the execution, specifically: 1. What structure or steps would you follow to ensure students engage with the learning materials before class? 2. How would you facilitate group activities like the ones you mentioned—minute papers or peer discussions—during the in-class sessions? Let’s clarify how you’ll balance these aspects.

Time is up! Ending the interview now.