 7,235,988) on 26 June 2007.He has published more than 100 papers in leading photonics, applied physics and multidisciplinary journals in the US and Europe.His efforts resulted in the development of novel and cost-effective / non-invasive method techniques in optical signal recovery, retrieval and identifying microscopic defects in integrated circuits (IC) enabling the accurate identification of circuit defects by producing a high-contrast image map that distinguishes semiconductor, metal and dielectric sites from each other.