P
P. A. Praveen
Publications - 10
Citations - 26
P. A. Praveen is an academic researcher. The author has contributed to research in topics: Computer science & Engineering. The author has an hindex of 2, co-authored 10 publications receiving 26 citations.
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Journal ArticleDOI
Deep Deconvolution of Object Information Modulated by a Refractive Lens Using Lucy-Richardson-Rosen Algorithm
P. A. Praveen,Francis Gracy Arockiaraj,Shivasubramanian Gopinath,Dan Smith,Tauno Kahro,Sandhra-Mirella Valdma,Andrei Bleahu,Soon Hock Ng,Andra Naresh Kumar Reddy,Tomas Katkus,A. Rajeswary,Rashid A. Ganeev,Siim Pikker,Kaupo Kukli,Aile Tamm,Saulius Juodkazis,Vijayakumar Anand +16 more
TL;DR: In this paper , the depth of focus of a refractive lens in static mode has been expanded using a recently developed computational reconstruction method, Lucy-Richardson-Rosen algorithm (LRRA).
Journal ArticleDOI
Nonlinear Reconstruction of Images from Patterns Generated by Deterministic or Random Optical Masks—Concepts and Review of Research
Dan Smith,Shivasubramanian Gopinath,Francis Gracy Arockiaraj,Andra Naresh Kumar Reddy,Vinoth Balasubramani,Ravi Kumar,Nitin Kumar Sugandha Aggarwal Rashmi Dubey,Soon Hock Ng,Tomas Katkus,Shakina Jothi Selva,Dhanalakshmi Renganathan,M. Beaula Ruby Kamalam,Aravind Simon John Francis Rajeswary,Srinivasan Navaneethakrishnan,Stephen Rajkumar Inbanathan,Sandhra-Mirella Valdma,P. A. Praveen,J. Amudhavel,Rajesh Kumar,Rashid A. Ganeev,Pierre J. Magistretti,Christian Depeursinge,Saulius Juodkazis,Joseph Rosen,Vijayakumar Anand +24 more
TL;DR: Nonlinear reconstruction (NLR) as discussed by the authors was developed in 2017 to reconstruct the object image in the case of optical-scattering modulators, which can reconstruct an object image modulated by an axicons, bifocal lenses and even exotic spiral diffractive elements, which generate deterministic optical fields.
Journal ArticleDOI
Single Shot Lensless Interferenceless Phase Imaging of Biochemical Samples Using Synchrotron near Infrared Beam
Molong Han,Dan Smith,Soon Hock Ng,Tomas Katkus,Aravind Simon John Francis Rajeswary,P. A. Praveen,Keith R. Bambery,Mark J. Tobin,Jitraporn Vongsvivut,Saulius Juodkazis,Vijayakumar Anand +10 more
TL;DR: In this article , a pinhole was aligned with one of the lobes of the fork shaped beam and the Airy diffraction pattern was used to illuminate biochemical samples using a NIR sensitive lensless camera.
Journal ArticleDOI
Impact of Furan Substitution on the Optoelectronic Properties of Biphenylyl/Thiophene Derivatives for Light-Emitting Transistors.
TL;DR: In this article , the authors systematically substituted different proportions of furan rings in the biphenylyl/thiophene core and studied their optoelectronic properties, aiming toward organic light-emitting transistor applications.
Proceedings ArticleDOI
4D imaging using accelerating airy beams and nonlinear reconstruction
Andrei Bleahu,Shivasubramanian Gopinath,Ravi Kumar,Francis Gracy Arokiaraj,Dan Smith,Tauno Kahro,P. A. Praveen,Soon Hock Ng,Agnes Pristy,Tomas Katkus,Aravind Simon John Francis Rajeswary,Kaupo Kukli,Aile Tamm,Saulius Juodkazis,Joseph Rosen,Vijayakumar Anand +15 more
TL;DR: In this article , a 4D computational incoherent imaging technique using accelerating Airy beams (A2-beams) and nonlinear reconstruction (NLR) has been developed, where the phase mask was designed as a binary version for the generation of a sparse random array of A2 beams.