B
Bhargab Das
Researcher at Council of Scientific and Industrial Research
Publications - 53
Citations - 519
Bhargab Das is an academic researcher from Council of Scientific and Industrial Research. The author has contributed to research in topics: Holography & Fiber Bragg grating. The author has an hindex of 12, co-authored 42 publications receiving 350 citations. Previous affiliations of Bhargab Das include Academy of Scientific and Innovative Research & University of Massachusetts Boston.
Papers
More filters
Journal ArticleDOI
Dual plane in-line digital holographic microscopy.
TL;DR: A dual plane in-line digital holographic microscopy technique that exploits the method of subtraction of average intensity of the entire hologram to suppress the zero-order diffracted wave and demonstrate successful reconstruction of phase objects as well as of amplitude objects.
Journal ArticleDOI
Moving Ground Target Detection With Seismic Signal Using Smooth Pseudo Wigner–Ville Distribution
TL;DR: A new feature extraction technique is proposed for seismic event detection based on time-frequency analysis implemented with the Smooth pseudo Wigner–Ville distribution (SPWVD) using a Renyi entropy vector exploiting a probability distribution function.
Journal ArticleDOI
Label-free detection of Escherichia coli bacteria by cascaded chirped long period gratings immunosensor.
TL;DR: The high specificity, good sensitivity to ambient RI, and robustness of the developed sensing platform will open a new avenue in optical immunosensing technology, and cascaded long CLPG sensors can contribute significantly to the detection of pathogenic bacteria in water and food samples.
Journal ArticleDOI
Holographic imaging through a scattering layer using speckle interferometry.
TL;DR: It is demonstrated that under suitable conditions, it is possible to perform imaging to reconstruct the complex amplitude of objects situated at different depths and to retrieve the interference fringes projected behind the scattering medium.
Journal ArticleDOI
Quantitative phase-contrast imaging through a scattering media.
TL;DR: A new technique for the recovery of quantitative phase and amplitude information of an object hidden behind a scattering medium using two-point intensity correlation measurement together with digital holography principles is reported.