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Raj Kumar
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Year
Knife-edge diffraction pattern as an interference phenomenon: an experimental reality
R Kumar, SK Kaura, AK Sharma, DP Chhachhia, AK Aggarwal
Optics & Laser Technology 39 (2), 256-261, 2007
352007
Structure of boundary diffraction wave revisited
R Kumar
Applied Physics B 90 (3-4), 379-382, 2008
302008
Portable digital holographic camera featuring enhanced field of view and reduced exposure time
R Kumar, G Dwivedi, O Singh
Optics and Lasers in Engineering 137 (2), 106359, 2021
232021
Direct visualization of Young’s boundary diffraction wave
R Kumar, SK Kaura, DP Chhachhia, AK Aggarwal
Optics communications 276 (1), 54-57, 2007
232007
Revisit to comparison of numerical reconstruction of digital holograms using angular spectrum method and Fresnel diffraction method
G Dwivedi, SK Debnath, B Das, R Kumar
Journal of Optics 49 (1), 118-126, 2020
212020
Folding mirror schlieren diffraction interferometer
R Kumar, DP Chhachhia, AK Aggarwal
Applied optics 45 (26), 6708-6711, 2006
192006
Diffraction Lloyd mirror interferometer
R Kumar
Journal of Optics 39 (2), 90-101, 2010
162010
Comparative study of different Schlieren diffracting elements
R Kumar, SK Kaura, DP Chhachhia, D Mohan, AK Aggarwal
Pramana 70 (1), 121-129, 2008
152008
Scratch enhancement and measurement in periodic and non-periodic optical elements using digital holography
S Verma, SS Sarma, R Dhar, R Kumar
Optik 126 (21), 3283-3287, 2015
132015
Performance evaluation of a digital holographic camera under variable source power and exposure time
G Dwivedi, L Pensia, SK Debnath, R Kumar
Applied Optics 60 (4), A120-A130, 2021
122021
Delamination testing of polyurethane pads adhered to polishing tool using a digital holographic nondestructive testing method
RK Gaurav Dwivedi, Anuj Sharma, Omendra Singh, Prabhat K. Baghel
Optical Engineering 59 (10), 102417, 2020
122020
Optical fiber antenna generating spiral beam shapes
S Sarkar Pal, SK Mondal, D Kumbhakar, R Kumar, A Akula, R Ghosh, ...
Applied Physics Letters 104 (3), 2014
112014
Highly Stable Vibration Measurements by Common-path off-axis Digital Holography
M Kumar, L Pensia, R Kumar
Optics and Lasers in Engineering 163, 107452, 2023
102023
Noise free defect detection in ceramic tableware using a portable digital holographic camera
L Pensia, G Dwivedi, O Singh, R Kumar
Applied Optics 61 (5), B181-B189, 2022
92022
Effect of displacement in object plane on reconstructed image in lens-based digital holography
L Pensia, G Dwivedi, R Kumar
Engineering Research Express 3 (3), 035004, 2021
82021
Non-destructive inspection and quantification of defects in plywood using a portable digital holographic camera
L Pensia, G Dwivedi, R Kumar
Wood Science and Technology 55 (3), 873-885, 2021
82021
Estimation of magnetorheological fluid constituent’s concentration for efficient finishing process
PK Baghel, R Kumar
Materials and Manufacturing Processes 36 (5), 626-635, 2021
82021
Effect of ultraviolet radiation exposure on optical nonlinearity and switching traits of SnO2 thin films deposited by thermal evaporation
S Yadav, S Kumari, SK Ghoshal, R Kumar, SK Chaudhary, D Mohan
Optics & Laser Technology 133 (1), 106575, 2021
82021
Comparison of numerical reconstruction of digital holograms using angular spectrum method and Fresnel diffraction method
G Dwivedi, A Sharma, S Debnath, Rajkumar
Journal of Optics, 1-10, 2017
82017
Straight, conic and circular fringes in single interferogram
R Kumar
European Journal of Physics 36 (2), 025019, 2015
82015
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