One of my most recent activities is focusing on applying concepts from the optical telecom field into the field of biophotonics primarily for imaging and for pressure/shear sensing purposes. In this context and in collaboration with University of Wisconsin, Milwaukee and the company SAFE, we have demonstrated a 2x2 2D PDMS-embedded Fiber Bragg Grating pressure sensing surface that provides real-time, high-sensitivity pressure measurements utilizing both power loss and wavelength shift measurement techniques. This sensor is suitable for Human Machine Interface systems that are considered vital in several areas of orthopedics, like clinical beds for pressure ulcer onset prevention and monitoring, wheelchairs, etc. In the field of imaging and in collaboration with the Photonics Communications Research Laboratory and the Microwave Research Laboratory from National Technical University of Athens, we have demonstrated a novel THz source that relies on optical supercontinuum followed by spectral carving and subsequent beating onto a photodiode in order to generate THz radiation at the desired frequency range. This type of THz source offers enhanced simplicity and agility in its frequency tunable range, always within the THz regime, and is considered for utilization in a THz brain imaging system.
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- G. T. Kanellos, G. Papaioannou, D. Tsiokos, C.
Mitrogiannis, G. Nianios and N. Pleros, “Two dimensional polymer-embedded quasidistributed
FBG pressure sensor for biomedical
applications”, OSA Optics Express, Vol. 18, No. 1, pp. 179-186, Jan. 2010
- G. Papaioannou, G.T. Kanellos, N. Pleros, C. Mitrogiannis, G. Nianios, and G. Fiedler, “Validation of a new Optical Fiber Sensor for novel amputee socket designs”, Proceedings of Orthopaedic Research Society (ORS) 2010, 56th Annual Meeting, March 2010, New Orleans, Louisiana, USA
- N. Pleros, G. T. Kanellos, and G. Papaioannou, “Optical Fiber Sensors in Orthopedic Biomechanics and Rehabilitation”, (Invited paper), Proceedings of 9th IEEE International Conf. on Information Technology and Applications in Biomedicine (ITAB 2009), 1st International Workshop on Computational Methods in Orthopedic Biomechanics and Rehabilitation (COMOR 2009), Fr.SS.3.1.2, Larnaca, Cyprus, Nov. 2009
- P. Bakopoulos, I. Karanasiou, N. Pleros, P. Zakynthinos, N. Uzunoglu, and H. Avramopoulos, “A tunable continuous wave (CW) and short-pulse optical source for THz brain imaging applications”, Measurement Science and Technol. Journal, (Special Issue on Imaging Systems and Techniques), Vol. 20, No. 10, pp. 1-9, Oct. 2009
- G. T. Kanellos, C. Mitrogiannis, G. Nianios, N. Pleros, G. Papaioannou, “High spatial resolution FBG-array based strain sensor”, presented at International Commission for Optics (ICO) Topical Meeting on “Emerging Trends and Novel Materials in Photonics”, Delphi, Greece, October 7-9, 2009
- P. Bakopoulos, I. Karanasiou, P. Zakynthinos, N. Pleros, H. Avramopoulos and N. Uzunoglu, “Towards Brain Imaging using THz Technology”, Proceedings of 2008 IEEE International Workshop on Imaging Systems and Techniques (IST 2008), pp. 7-10, Chania, Greece, 10-12 September 2008
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