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Profile

Name: Dr. Joseph Karanja

Qualifications

  • PhD (Mechatronics Engineering), Wuhan University of Technology, China, 2016.
  • MSc. (Electronics and Instrumentation), Kenyatta University, 2009.
  • BEd (Science), Egerton University, 2001.

Professional Qualifications

CCNA professional courses

External Links/Affiliations

  1. https://scholar.google.com/citations?user=zskpzUEAAAAJ&hl=en
  2. Http:/Research Gate Accounthttps://www.researchgate.net/profile/Joseph-Muna-Karanja
  3. Http:/Research journal/s reviewer link

Publications

  1. Karanja, J.M. (2023). Preparation, Synthesis and Optical Characterization of Vacuum Evaporated SnxSey Alloys Thin Films. Global scientific journal
  2. Karanja, J.M. (2023). Highly sensitive microstructured fiber-based temperature sensor enhanced by electroplated Copper layer. Global scientific journal
  3. Joseph Muna Karanja, Xian Zhou and XingZu Ming (2022). An Ultra-Low FBG Hydrogen Sensor Based On Laser Ablation Micro-Trenches And Pt-WO3. Journal of the European Optical Society-Rapid Publications. 
  4. Xian Zhou, Joseph Muna Karanja, and Yutang Dai. (2021). Spiral micro-structured FBG hydrogen sensor based on Pd87-Ni13/Pd4-Ag1 thin film and femtosecond laser ablation. Integrated ferroelectrics vol.221, 1-11.
  5. X. Zhou, Y.Dai, M. Zou, J.M. Karanja, L. Fufei and M. Yang. (2017). Microstructured FBG hydrogen sensor based on Pt-loaded WO3. Optics Express vol.25 (8), 8777,
  6. X. Zhou, Y.Dai , J.M. Karanja (2017). Fabricating phase-shifted fiber Bragg grating by simple post processing using femtosecond laser. Optical Engineering 56(2), 027108
  7. F. Liu, Y. Dai, J.M. Karanja and M.Yang (2017).  A low frequency FBG accelerometer with symmetrical bended spring plates. Sensors 17(1) pp206
  8. X. Zhou, Y.Dai, M. Zou, J.M. Karanja and M. Yang (2016). FBG hydrogen sensor based on spiral microstructure ablated by fem to second Laser. Sensors and Actuators B23(6).
  9. Joseph Muna Karanja, Yutang Dai, Xian Zhou, Bin Liu Minghong (2015). Femtosecond Laser Ablated FBG Multi-trenches for Magnetic Field Sensor Application. IEEE Photonics Technology Letters vol. 27(16),pp.1717-1720
  10. Joseph Muna Karanja, Yutang Dai, Xian Zhou, Bin Liu and Minghong Yang (2015). Micro-structured Femtosecond Laser Assisted FBG Hydrogen Sensor. Optics Express vol.23(24), pp 31034-31042
  11. Liu Bin, Dai Yutang, Zhou Xian, Zou Meng, J.M Karanja. (2015). Magnetic field FBG sensor with even straight trenches microstructure. Journal of Optoelectronics Laser Issue 10 pp1860-1865
  12. G.L. Yin, Y.T. Dai, J.M. Karanja(2015). Optimization design for medium-high frequency FBG accelerometer with different eigen frequency and sensitivity. Sensors and Actuators A vol. 235 pp311–316
  13. Xian Zhou, Bin Liu, Yutang Dai, J.M. Karanja (2015). Feature regulation and applications of M-FBG by laser ablation. IEEE Photonics Technology Letters vol. 27(16),pp.1717-1720
  14. Joseph Muna Karanja, Yutang Dai, Xian Zhou, Bin Liu (2015). Multi-cavities Femtosecond laser aided microstructures for magnetic field sensing. International Photonics And Optoelectronics

  15. J.M. Karanja,P.M. Karimi, W.K. Njoroge and D.M. Wamwangi (2013). Phase change memory based on SnSe4. Thin film solids vol. 527 pp323–326