Shakeel Ashraf

Background

In the start of 2013, I had joined the university as a PhD student. My main supervisor is Dr.Göran Thungström, my assistant supervisor is Dr.Claes Mattsson.
In 2011, I got my Master Degree in Electronics from Mid Sweden University. I had done Master in Physics in 2008 from University of Punjab Pakistan.

Area of interest

My research focus is in the field of Infrared Sensors Systems. My research involves fabrication and development of low cost infrared sensors. Presently, I am investigating different absorption materials and structures for Infrared sensors, which will helps to develop low cost Infrared sensors.

Current research

Methane and Carbon dioxide gases absorbs radiation at specific wavelength in infrared region. The combination of infrared sensors and infrared radiation source, the concentration of Carbon dioxide and Methane in air can be measured.

Publications

Articles in journals
Conference papers
Doctoral theses, comprehensive summaries
Licentiate theses, comprehensive summaries

Articles in journals

Ashraf, S. , Niskanen, I. , Kanyathare, B. , Vartiainen, E. , Mattsson, C. , Heikkilä, R. & Thungström, G. (2019). Determination of complex refractive index of SU-8 by Kramers-Kronig dispersion relation method at the wavelength range 2.5 – 22.0 μm. Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 224, pp. 309-311.  

Ashraf, S. , Mattsson, C. & Thungström, G. (2019). Fabrication and characterization of a SU8-epoxy membrane based thermopile detector with an integrated multilayered absorber structure for the mid-IR region. IEEE Sensors Journal,  

Ashraf, S. , Mattsson, C. , Fondell, M. , Lindblad, A. & Thungström, G. (2015). Surface modification of SU-8 for metal/SU-8 adhesion using RF plasma treatment for application in thermopile detectors. Materials Research Express, vol. 2: 8  

Ashraf, S. , Mattsson, C. , Thungström, G. & Rödjegard, H. (2014). Integration of an interferometric IR absorber into an epoxy membrane based CO₂ detector. Journal of Instrumentation, vol. 9: 5, pp. Art. no. C05035  

Conference papers

Ashraf, S. , Mattsson, C. , Thungström, G. , Gaynullin, B. & Rödjegård, H. (2018). Evaluation of a CO2 sensitive thermopile with an integrated multilayered infrared absorber by using a long path length NDIR platform. In I2MTC 2018 - 2018 IEEE International Instrumentation and Measurement Technology Conference : Discovering New Horizons in Instrumentation and Measurement, Proceedings.. pp. 1--6.  

Ashraf, S. , Mattsson, C. & Thungström, G. (2016). Fabrication of a mid-Ir sensitive thermopile detector. In Proceedings of IEEE Sensors. (IEEE Sensors)  

Ashraf, S. , Mattsson, C. , Thungström, G. & Rödjegard, H. (2014). Design of a multilayered absorber structure based on SU-8 epoxy for broad and efficient absorption inMid-IR sensitive thermal detectors. In Proceedings.. pp. 938--941.  

Doctoral theses, comprehensive summaries

Ashraf, S. (2018). Thermal detector with integrated absorber structure for mid-IR gas detection. Dis. (Comprehensive summary) Sundsvall : Mid Sweden University, 2018 (Mid Sweden University doctoral thesis : 280)

Licentiate theses, comprehensive summaries

Ashraf, S. (2015). Design and Integration of Infrared Absorber Structures into Polymer Membranes based Thermal Detectors. Lic. (Comprehensive summary) Sundsvall : Mid Sweden University, 2015 (Mid Sweden University licentiate thesis : 118)