Search Results - "Naik, Dinesh N."

Exploiting scattering media for exploring 3D objects by Singh, Alok Kumar, Naik, Dinesh N, Pedrini, Giancarlo, Takeda, Mitsuo, Osten, Wolfgang

“…Scattering media, such as diffused glass and biological tissue, are usually treated as obstacles in imaging. To cope with the random phase introduced by a…”
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Looking through a diffuser and around an opaque surface: a holographic approach by Singh, Alok Kumar, Naik, Dinesh N, Pedrini, Giancarlo, Takeda, Mitsuo, Osten, Wolfgang

“…Retrieving the information about the object hidden around a corner or obscured by a diffused surface has a vast range of applications. Over the time many…”
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Recording of incoherent-object hologram as complex spatial coherence function using Sagnac radial shearing interferometer and a Pockels cell by Naik, Dinesh N, Pedrini, Giancarlo, Osten, Wolfgang

“…The ideas of incoherent holography were conceived after the invention of coherent-light holography and their concepts seems indirectly related to it. In this…”
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Ultrashort vortex from a Gaussian pulse – An achromatic-interferometric approach by Naik, Dinesh N., Saad, Nabil A., Rao, D. Narayana, Viswanathan, Nirmal K.

“…The more than a century old Sagnac interferometer is put to first of its kind use to generate an achromatic single-charge vortex equivalent to a…”
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Effect of Polarization on Cross-Spectral Density Matrix by Gautam, Akanksha, Naik, Dinesh N., Narayanamurthy, C. S., Singh, Rakesh Kumar

“…Coherence-polarization properties of different beams are experimentally measured in the far-field from the source and results are presented for incoherent…”
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Interferometer setup for the observation of polarization structure near the unfolding point of an optical vortex beam in a birefringent crystal by Brundavanam, Maruthi M, Miyamoto, Yoko, Singh, Rakesh Kumar, Naik, Dinesh N, Takeda, Mitsuo, Nakagawa, Ken'ichi

“…We propose a novel birefringent interferometer setup for the study of unfolding points, and obtain for the first time to our knowledge the spatial polarization…”
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Nonlinear phase accumulation for a linear path delay in low coherence fourier transform spectral interferometry by Athira, T S, Naik, Dinesh N

“…A scheme to measure path delay in spectral interferometry by observing the phase accumulated by the superposed field is presented. Through the interference…”
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Spin-orbit beams for optical chirality measurement by Samlan, C. T., Suna, Rashmi Ranjan, Naik, Dinesh N., Viswanathan, Nirmal K.

“…Accurate measurement of chirality is essential for the advancement of natural and pharmaceutical sciences. We report here a method to measure chirality using…”
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Photon correlation holography by Naik, Dinesh N, Singh, Rakesh Kumar, Ezawa, Takahiro, Miyamoto, Yoko, Takeda, Mitsuo

“…Unconventional holography called photon correlation holography is proposed and experimentally demonstrated. Using photon correlation, i.e. intensity…”
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Insensitivity of partially coherent Gaussian -Schell model beams to the impact of dynamic Kolmogorov type turbulence by S.R., Lekshmi, Naik, Dinesh N., Narayanamurthy, C.S.

“…The effect of dynamic Kolmogorov kind of turbulence on Gaussian- Schell model beams in different coherence regimes have been explored in detail. The…”
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Vectorial coherence holography by Singh, Rakesh Kumar, Naik, Dinesh N, Itou, Hitoshi, Miyamoto, Yoko, Takeda, Mitsuo

“…Extension of coherence holography to vectorial regime is investigated. A technique for controlling and synthesizing optical fields with desired elements of…”
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Spatial statistical optics and spatial correlation holography: A review by Takeda, Mitsuo, Wang, Wei, Naik, Dinesh N., Singh, Rakesh K.

“…Classical statistical optics is revisited with the aim of introducing the concept of spatial statistical optics that places particular focus and special…”
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Coherence holography by achromatic 3-D field correlation of generic thermal light with an imaging Sagnac shearing interferometer by Naik, Dinesh N, Ezawa, Takahiro, Singh, Rakesh Kumar, Miyamoto, Yoko, Takeda, Mitsuo

“…We propose a new technique for achromatic 3-D field correlation that makes use of the characteristics of both axial and lateral magnifications of imaging…”
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Isogyres – Manifestation of Spin-orbit interaction in uniaxial crystal: A closed-fringe Fourier analysis of conoscopic interference by Samlan, C. T., Naik, Dinesh N., Viswanathan, Nirmal K.

“…Discovered in 1813, the conoscopic interference pattern observed due to light propagating through a crystal, kept between crossed polarizers, shows…”
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3-D coherence holography using a modified Sagnac radial shearing interferometer with geometric phase shift by Naik, Dinesh N, Ezawa, Takahiro, Miyamoto, Yoko, Takeda, Mitsuo

“…A new image reconstruction scheme for coherence holography using a modified Sagnac-type radial shearing interferometer with geometric phase shift is proposed,…”
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Real-time coherence holography by Naik, Dinesh N, Ezawa, Takahiro, Miyamoto, Yoko, Takeda, Mitsuo

“…Coherence holography capable of real-time recording and reconstruction is proposed and experimentally demonstrated with a generic Leith-type coherence…”
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Holography with Incoherent Light by Akanksha Gautam, Athira T S, Dinesh N. Naik, C. S. Narayanmurthy, Rajeev Singh, Rakesh Kumar Singh

“…Conventional digital holography uses the technique of combining two coherent light fields and the numerical reconstruction of the recorded hologram leads to…”
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Tunable wavelength laser surface profilometry through tilted interference by Harikrishnan, P., Naik, Dinesh N.

“…•Laser Interferometer based surface Profilometry that is made immune to surrounding vibrations.•Capability to improve height map estimate even with wrapped…”
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Insensitivity of higher order topologically charged Laguerre–Gaussian beams to dynamic turbulence impact by Panchal, Pramod, Naik, Dinesh N., Narayanamurthy, C.S.

“…The propagation characteristics of topologically charged Laguerre–Gaussian​ beams through a dynamic (rotating) pseudo random phase plate mimicking atmospheric…”
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Vectorial shearing cascaded Sagnac interferometric wavefront sensor by Panchal, Pramod, Naik, Dinesh N, Narayanamurthy, C. S.

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