A lens-less digital holographic microscope is realized in the detection of lymphatic filariasis. This innovative design streamlines the process, allowing for on-site imaging of blood smear samples in remote areas. This device becomes portable, compact, and cost-effective by eliminating bulky optical components. The sample is illuminated by a coherent light source, typically a diode laser, which produces a diffraction pattern. This pattern, also known as an inline hologram, is captured on imaging sensor, is reconstructed numerically by solving the inverse problem. Different microfilariae samples are classified using customized machine-learning algorithms.
Dr. Satish Kumar Dubey is currently an Associate Professor at IIT Delhi. He completed his M.Tech and PhD in Applied Optics from IIT Delhi in 2004 and 2009, respectively. In February 2008, Dr. Dubey joined the Central Scientific Instruments Organisation (CSIO), Chandigarh, as a Scientist. However, he shortly moved to Singapore to work as an Optics Engineer at Coherent Singapore. He returned to India in 2010 to join the IRDE Dehradun, a unit of DRDO, where he worked in Thermal Range Modeling and Instrumentation. His next stint was at Corporate R&D, Siemens Bangalore where he worked for six years in the field of Sensors Technology for industry and healthcare applications. At R&D Siemens, Dr. Dubey mainly worked in two research groups: Applied Photonics and Diagnostics & Biosciences India. Dr. Dubey is experienced in design & development of novel measurement/imaging techniques by leveraging the core competencies in optical instrumentation. Dr. Dubey has been been actively involved in the development of optics and optoelectronic sensors for industrial and biomedical applications. He has 21 research publications in the international peer reviewed journals, 18 papers in international and national conferences, 1 book chapter and 12 patent applications filed nationally and internationally, with him being a co-inventor.