Broadband image sensors for biomedical, security, and automotive applications

Achyut Dutta; Rabi Sengupta; Anupriya Krishnan; Saif Islam; Priyalal S. Wijewarnasuriya; Nibir Dhar

doi:10.1117/12.754495

11 October 2007 Broadband image sensors for biomedical, security, and automotive applications

Achyut Dutta, Rabi Sengupta, Anupriya Krishnan, Saif Islam, Priyalal S. Wijewarnasuriya, Nibir Dhar

Proceedings Volume 6769, Nanosensing: Materials, Devices, and Systems III; 67690C (2007) https://doi.org/10.1117/12.754495
Event: Optics East, 2007, Boston, MA, United States

Abstract

Detectors (sensor) having detection capability ranging from visible to near-infrared region are very much required for multi-color image sensor, necessary for next generation bio-medical, bio-chem(ical), and security applications. The capability of using broadband detection in a single sensor would help to receive real-time imaging not detectable using today's CCD or CMOS sensor. We proposed a detector structure as a single sensor element (pixel) having the detection capability ranging from visible to 1.7 μm, wavelengths requiring in bio-chem, biomedical cell detection and security application. This invited paper has two-fold objectives: (a) provide a comprehensive overview of conventional photo detectors array (focal-plan array) and their types, being used in today's imaging, and (b) introduce a development of multi-color detector array (image sensor) which authors pioneered. The features of proposed multi-color detector are simple structure, low-cost, high quantum efficiency, high sensitivity, and high speed. Performance results so far attained will be presented along with its possible applications.

Citation Download Citation

Achyut Dutta, Rabi Sengupta, Anupriya Krishnan, Saif Islam, Priyalal S. Wijewarnasuriya, and Nibir Dhar "Broadband image sensors for biomedical, security, and automotive applications", Proc. SPIE 6769, Nanosensing: Materials, Devices, and Systems III, 67690C (11 October 2007); https://doi.org/10.1117/12.754495

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