Dr. Sumitra Singh
Dr. Sumitra Singh
Principal Scientist at CSIR-CEERI
Verified email at ceeri.res.in
Title
Cited by
Cited by
Year
Automated small tilt-angle measurement using Lau interferometry
S Prakash, S Singh, S Rana
Applied optics 44 (28), 5905-5909, 2005
282005
A low cost technique for automated measurement of focal length using Lau effect combined with Moiré readout
S Prakash, S Singh, A Verma
Journal of Modern Optics 53 (14), 2033-2042, 2006
182006
Enhancement of light extraction efficiency of vertical LED with patterned graphene as current spreading layer
S Singh, ADS Nandini, S Pal, C Dhanavantri
Superlattices and Microstructures 89, 89-96, 2016
162016
Design and Comparative study of lateral and vertical LEDs with Graphene as current spreading layer
S Palakurthy, S Singh, S Pal, C Dhanavantri
Superlattices and Microstructures 86, 86-94, 2015
92015
Photovoltaic Solar Cells Based On Graphene/Gallium Arsenide Schottky Junction
KJS Zeeshan Alam Ansari, Thokchom Jayenta Singh, Sk Masiul Islam, Sumitra ...
optik 182, 500-506, 2019
82019
Optimization of structure parameters for highly efficient AlGaN based deep ultraviolet light emitting diodes
SP Ramit Kumar Mondal, Vijay Chatterjee, Sumitra Singh, Sk Masiul Islam
Superlattices and Microstructures 112, 339-352, 2017
82017
Optimization of structure parameters for highly efficient AlGaN based deep ultraviolet light emitting diodes
SP Ramit Kumar Mondal, Vijay Chatterjee, Sumitra Singh, Sk Masiul Islam
Superlattices and Microstructures 112, 339-352, 2017
82017
Setting sensitivity in collimation testing using Lau interferometry
S Prakash, S Singh, S Rana
Journal of Optics A: Pure and Applied Optics 8 (3), 290, 2006
82006
Performances of p-side down vertical InGaN / GaN blue light-emitting diodes with chip size
S Singh, S Kumar, S Pal, C Dhanavantri
Optics & Laser Technology, 2017
72017
Realization of large-scale photonic crystal cavity-based devices
SP Amit Kumar Goyal, Hemant Sankar Dutta, Sumitra Singh, Mandeep Kaur ...
J. Micro/Nanolith. MEMS MOEMS 15 (3), 031608-5, 2016
72016
Optimization of n‐electrode pattern for p‐side down vertical InGaN/GaN blue light emitting diodes
S Kumar, S Singh, AK Lunia, S Pal, C Dhanavantri
physica status solidi (a) 211 (9), 2134-2141, 2014
72014
Optimization towards reduction of efficiency droop in blue GaN/InGaN based light emitting diodes
S Singh, NK Rohila, S Pal, C Dhanavantri
Optik-International Journal for Light and Electron Optics 123 (14), 1287-1292, 2012
72012
Application of wavelet filtering techniques to Lau interferometric fringe analysis for measurement of small tilt angles
S Singh, S Rana, S Prakash, O Sasaki
Optik-International Journal for Light and Electron Optics 122 (18), 1666-1671, 2011
72011
Effect of electron blocking layer on efficiency droop in blue InGaN/GaN based light-emitting diodes
S Singh, D Robidas, N Rohila, S Pal, C Dhanavantri
Optoelectronics and Advanced Materials-Rapid Communications 4 (23), 1106-1110, 2010
72010
Flexible Organic Solar Cells With Graphene/PEDOT:PSS Schottky Junction on PET Substrates
KJS Thokchom Jayenta Singh, Sumitra Singh, Sk Masiul Islam, Rubina Get ...
optik 181, 984-992, 2019
62019
Droop-multimode trade-off in GaN-InGaN LEDs: Effect of polarization-matched AlInGaN blocking layers
V Pendem, S Adhikari, M Mathew, S Singh, S Pal
Superlattices and Microstructures 88, 344-353, 2015
62015
Theoretical analysis of blue to white down conversion for light-emitting diode light with yttrium aluminum garnet phosphor
AK Lunia, SK Patra, S Kumar, S Singh, S Pal, C Dhanavantri
Journal of Photonics for Energy 4 (1), 043596-043596, 2014
62014
Enhancement of light extraction efficiency in InGaN/GaN vertical blue light emitting diodes by surface patterning: Design and simulation
S Singh, AK Goyal, S Kumar, AK Lunia, S Pal, C Dhanavantri
Optik-International Journal for Light and Electron Optics 126 (21), 3004-3006, 2015
52015
Growth and Fabrication of GaN/InGaN Violet Light Emitting Diode on Patterned Sapphire Substrate
S Adhikari, SK Patra, A Lunia, S Kumar, P Parjapat, B Kushwaha, ...
Journal of Applied Mathematics and Physics 2 (12), 1113, 2014
52014
Fabrication of GaN/InGaN MQW blue light emitting diode
GS Padma, S Singh, M Mathew, K Singh, BC Joshi, S Das, C Dhanavantri
Journal of Optics 41 (4), 198-200, 2012
52012
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Articles 1–20