Qualification
● Ph.D. in Physics (Fibre Optics) – IIITDM Kancheepuram, Chennai, India (2010–2015)
● M.Tech. in Laser and Electro-Optical Engineering – Anna University, Chennai, India (2008–2010)
● M.Sc. in Physics (Electronics) – Bharathiar University, Coimbatore, India (2004–2006)
● B.Sc. in Physics (Electronics) – University of Calicut, Kerala, India (2001–2004)
Experience
● Assistant Professor, Erba Global Institute of Medical Technology (EGIMT), India (06/2026–Present)
● Postdoctoral Fellow, Department of Physics, University of Idaho, USA (02/2022–06/2025)
● Postdoctoral Research Associate, National Center for Physical Acoustics, University of Mississippi, USA (08/2018–01/2022)
● Research Associate, Advanced Centre for Research in High Energy Materials, University of Hyderabad, India (08/2017–08/2018)
● Postdoctoral Researcher, Division of Mechanical Systems Engineering, Jeonbuk National University, South Korea (07/2016–03/2017)
● Assistant Professor, MGM College of Engineering and Technology, Kerala, India (07/2015–07/2017, 9-month leave)
● Doctoral Researcher, IIITDM Kancheepuram, Chennai, India (08/2010–05/2015)
Research Areas
• Fibre Optics & Interferometry
• Optical Systems & Instrumentation
• Optical Amplifiers (EDFA)
• Optical Metrology
• Optical Imaging
• Holography & Imaging
• Light-Sheet Microscopy
• Gain Flattening
• Raman & Fluorescence Spectroscopy
• Optical Coherence Tomography (OCT)
• Biomedical Imaging analysis and Deep learning
Research IDs: 1. Web of Science: - https://www.webofscience.com/wos/author/record/J-3175-2013 2. Scopus Author:- https://www.scopus.com/authid/detail.uri?authorId=57197633490 3. Loop – Frontiers:- https://loop.frontiersin.org/people/824336/overview 4. SciProfiles – MDPI :- https://sciprofiles.com/profile/Kasuramachandran 5. ORCID :- https://orcid.org/my-orcid?orcid=0000-0002-6774-5184 6. LinkedIn Professional :- https://www.linkedin.com/in/dr-ramachandran-kasu-41b0166a/ 7. Google Scholar :- https://scholar.google.com/citations?hl=en&user=uRv0DOwAAAAJ 8. VIDWAN – INFLIBNET Faculty/Researcher:- https://vidwan.inflibnet.ac.in/profile/619704 9. ResearchGate:- https://www.researchgate.net/profile/Ramachandran-Kasu
Publications
PATENT
1. Ramachandran K., “Switchable Photon-Counting Optical Coherence Tomography Imaging System, “Indian Patent Application No. 202641092230, filed 2026. Patent pending.
2. Ramachandran. Kasu, H. Luo, D. Christodoulides, A. E. Vasdekis, “Single objective Airy light-sheet imaging (SOALSI) and method for using”, US Patent Pending No. 63/704,447, 2024.
PEER-REVIEWED PUBLICATIONS:
3. Ramachandran Kasu, Haokun Luo, Shirley Luckhart, Demetrios Christodoulides and A. E. Vasdekis, “Single-Objective Airy Light-Sheet Imaging”(2025), ACS Photonics, 12(5), 2432-2439, DOI: https://doi.org/10.1021/acsphotonics.4c02078 IF: 6.5 (Q1)
4. Lochlann Dunn, Haokun Luo, Nava R. Subedi, Ramachandran Kasu, Armando G. McDonald, Demetrios N. Christodoulides, and Andreas E. Vasdekis, "Video-Rate Raman-Based Metabolic Imaging by Airy Light-Sheet Illumination and Photon-Sparse Detection" (2023), Proceedings of the National Academy of Sciences of the United States of America (PNAS), 120(9), e2210037120 DOI: 10.1073/pnas.2210037120 , IF: 9.4 (Q1)
5. Vyacheslav Aranchuk, Ramachandran Kasu, Junrui Li, Ina Aranchuk, and Craig Hickey,
“Application of line-scan CMOS camera in multi-beam heterodyne differential laser Doppler vibration sensor” (2023), Optics Letters 48(10), 2724-2727, DOI: 10.1364/OL.486630, IF:3.6 (Q2)
6. Vyacheslav Aranchuk, Ramachandran Kasu, Junrui Li, Ina Aranchuk, and Craig Hickey,
“Multi-beam heterodyne laser Doppler vibrometer based on a line-scan CMOS digital camera” (2022), Applied Optics 61 (20), 5876-5883,DOI: 10.1364/AO.461368, IF: 1.7(Q3/Q2)
7. K. Ramachandran, Jitendra N Acharyya, A Kumari, and A. K. Chaudhary, “Study of photo-induced charge transfer mechanism of PEDOT with nitro groups of RDX, HMX, and TNT explosives using Anti-Stokes and Stokes Raman lines ratios ”(2021) Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 251,119360, DOI: 10.1016/j.saa.2020.119360, IF: 4.3(Q1)
8. K. Ramachandran, Naveen Kumar, ,“Comparative spectral tuning and fluctuation analysis of all-fiber Mach-Zehnder interferometer and micro Mach-Zehnder interferometer” (2021), Journal of Optics 23(11), 115702, DOI: 10.1088/2040-8986/ac24be, IF: 2.0 (Q2)
9. K. Ramachandran, Daesuk Kim, Naveen Kumar, “Miniaturized MMZI concatenated FLM for gain equalization of ASE response of an EDFA”(2017), Optical Fiber Technology, 36, 95-198,
DOI: 10.1016/j.yofte.2017.03.016, IF: 2.6(Q2)
10. G. Narendran, K. Ramachandran, Naveen Kumar, “An inline sensing of coolant temperature inside a microchannel for applications in ultra-dense packed high-power electronics” (2016), Optik,127(2), 871-875, DOI: 10.1016/j.ijleo.2015.10.183, IF: 3.1(Q2)
11. K. Ramachandran, Naveen Kumar, Venkataraman Sahoo, “A Highly Accurate All-Fiber MMZI Current Sensor”, 2015, IEEE Sensors Journal, 15, 1270-1274, DOI: 10.1109/JSEN.2014.2361837, IF: 4.3(Q1/Q2)
12. Naveen Kumar, K. Ramachandran,“Dynamic Spectral Maneuvering by Fiber Sagnac Loop Filter”, (2014) Optics and Laser Technology,63, 144-147, DOI: 10.1016/j.optlastec.2014.04.012, IF: 4.6,(Q1/Q2)
13. Naveen Kumar, K. Ramachandran,“Mach–Zehnder interferometer concatenated fiber loop mirror based gain equalization filter for an EDFA”, (2013), Optics Communications, 289, 92-96,
DOI: 10.1016/j.optcom.2012.10.003, IF:2.2, (Q2)
14. Thresiamma George, K. Ramachandran*, "Third-Order Optical Nonlinearity of Au-Ag core-shell Nanoparticle at 532 nm", International Journal of Science and Research (IJSR), 6 (4), 245 – 251 (2017). DOI:- 10.21275/ART20172283 ISSN (Online): 2319-7064 https://www.ijsr.net/archive/v6i4/ART20172283.pdf
CONFERENCE PRESENTATIONS:
15. Haokun Luo ,Ramachandran Kasu,Demetrios N. Christodoulides, Andreas E. Vasdekis “Metabolic Imaging at Video Rates Using Raman with Airy Light-Sheet Illumination and Sparse Photon Detection | Genomic Science Program,” 2024/4/2, 2024 Enabling Capabilities and Resources Principal Investigator Meeting Proceedings, Page -76.
16. Lochlann Dunn, Haokun Luo, Nava R. Subedi, Ramachandran Kasu, Armando McDonald, Demetrios Christodoulides, Andreas E. Vasdekis; Video-rate Spontaneous Raman Imaging (Invited Paper); 2024; SPIE Photonics West, San Francisco, California, United States; DOI: https://doi.org/10.1117/12.3003021; 12854, 109-113, ISBN:9781510669673,178 (1 Vol)
17. Vamara Dembele, K Ramachandran, Inho Choi, Jayakumar P. Madhan, Junho Kim, Daesuk Kim; Dynamic Spectro-ellipsometry Based on a Spectral Interferometric Phase Extraction Method; Digital Holography and Three-Dimensional Imaging 2017, Jeju Island, South Korea; M4A-5 DOI: 10.1364/DH.2017.M4A.5; Optica Publishing Group; ISBN: 978-1-943580-28-6.
18. Naveen Kumar, K. Ramachandran; A Novel Interferometric Technique for the Gain Equalization of an EDFA; 2013; Workshop on Recent Advances in Photonics (WRAP), IIT Delhi, India; 1-2; DOI: 10.1109/WRAP.2013.6917700; IEEE; ISBN:978-1-4799-4863-5
19. Naveen Kumar, K. Ramachandran; Sagnac and Mach-Zehnder Interferometer-Based Gain Flattening of an EDFA; 2012; International Conference on Fiber Optics and Photonics (PHOTONICS 2012), IIT Madras, India; TPo-17; DOI: 10.1364/PHOTONICS.2012.TPo.17; Optica Publishing Group /IEEE; ISBN: 978-1-4673-4718-1.
20. Ramachandran K, Andreas E. Vasdekis; Light Sheet Microscopy in Idaho; 2023; The Institute for Health in the Human Ecosystem Annual Research Symposium, Moscow, Idaho, USA.
21. A Kumari, Ganesh Damarla, K Ramachandran, Anil K Chaudhary; A Time-Domain Terahertz Spectroscopy of Cefixime Antibiotic Drug Obtained from Different Sources; 2017; DAE-BRNS Theme Meeting on Ultrafast Science 2017 (UFS-2017), University of Hyderabad, India;
22. Daesuk Kim, Vamara Dembele, Inho Choi, K Ramachandran, Hyungjoon Lim, GeeHong Kim, Jaejong Lee; Inline Scatterometry for Dynamic Nanopattern Uniformity Evaluation; 2017; 24th Korean Conference on Semiconductors,, South Korea, WC4-Q-3
23. Daesuk Kim, Vamara Dembele, Inho Choi, Ramachandran Kasu; Dynamic Spectroscopic Ellipsometry: Theory and Applications (Invited); 2016; International Symposium on Optomechatronic Technology 2016, Itabashi, Tokyo, Japan, SS2-10, http://isot2016.sakura.ne.jp/documents/_ISOT_digest.pdf
24. Naveen Kumar, K. Ramachandran; Interrogation of a Mach-Zehnder Interferometer Inside the Fibre Loop Mirror for Gain Equalization of an EDFA; 2014; International Conference on Optics and Optoelectronics (ICOL 2014), IRDE, Dehradun, Uttarakhand, PP-FIO-18
25. Naveen Kumar, K. Ramachandran, Venkataraman Sahoo; Miniaturized Microfiber Mach-Zehnder Interferometer Current Sensor; 2014; ICOL 2014, IRDE, Dehradun, Uttarakhand, PP-MNT-10
26. Naveen Kumar, Venkataraman Sahoo, K Ramachandran, Rajkoti; Fabrication of Long Tapered Fiber and Micro Mach-Zehnder Interferometer for Sensing Applications; 2014; ICOL 2014, IRDE, Dehradun, Uttarakhand, PP-ODT-06
Patents
1. Ramachandran K., “Switchable Photon-Counting Optical Coherence Tomography Imaging System, “Indian Patent Application No. 202641092230, filed 2026. Patent pending.
2. Ramachandran. Kasu, H. Luo, D. Christodoulides, A. E. Vasdekis, “Single objective Airy light-sheet imaging (SOALSI) and method for using”, US Patent Pending No. 63/704,447, 2024.
Projects & Consultancy
• Diffraction-Free Beams in Light-Sheet Microscopy
Position: Postdoctoral fellow: PI : Prof Andreas E Vasdekis
This research was supported by the U.S. Department of Energy (DOE) Office of Science, Office of Biological and Environmental Research (BER), grant number DE-SC0022282.
Diffraction-Free Beams in Light-Sheet Microcopy | Genomic Science Program (energy.gov)
• Acousto-Optics-based detection of buried objects
Position: Postdoctoral research associate: PI: Dr Vyacheslav Aranchuk
This research was supported by the U.S. Department of the Navy’s Office of Naval Research under award, No.N00014-18-2489
• Terahertz generation, detection, imaging, and photoacoustic spectroscopy.
Position: Research associate: PI: Prof Anil Kumar Chaudhary
DRDO, Ministry of Defense, and Govt. of India under ACRHEM Phase –III No.
ERIP/ER/1501138/M/01/319/D(R&D).
• High-speed micro nanomechanical property measurements based on wavefront reconstruction methods.
Position: Postdoctoral Researcher: PI: Prof Daesuk Kim
This research was supported by the National Research Foundation of Korea (NRF); Korean Government (MSIP) (2015R1A5A1037668, 2015R1A2A2A11001529).
• Design, develop, and characterize the all-fiber interferometer for wavelength interleaving and temperature sensing applications.
Position: Research Scholar: PI: Prof Naveen Kumar
This research was supported by the Department of Science and Technology, Government of India, within the FastTrack Project Scheme for Young Scientists under Grant SR/FTP/PS-080/2010.
Awards
• Early Career Physicist, Institute of Physics (IOP), UK - 2025
• Outstanding Reviewer Award, Institute of Physics (IOP), UK - 2022
• Trusted Reviewer, Institute of Physics (IOP), UK
• Ph.D. Fellowship (HTRA Scheme), Government of India
• M.Tech. with Distinction**, Laser and Electro-Optical Engineering