Academic Responsibilies

Teaching Assignments: UG & PG

B.Tech.(EP)  Optics

B.Tech.(EP) Fiber Optics and Optical Communication

M.Sc.(Physics) Applied Optics

M.Sc.(Physics) Fiber & Integrated Optics

M.Tech. (MOCE)  Numerical Techniques in Electromagnetism

M.Tech.(MOCE) Integrated Optics

Lab Coordinator /Incharge

Fiber Optics and Optical Communication Lab

Optics Lab

Advanced Simulation Lab

Sponsored Research Projects

• DRDO CARS project on “ Modelling and simulation of single mode CW high power fiber lasers” (2014-2017)

Journal contributions

1. Varnam Sherawat, Yogita Kalra, Renuka Bokolia, and Ravindra Kumar Sinha. "Temperature-dependent coupling characteristics in a silicon photonic crystal waveguide coupler." Optics Communications 586, 131875 (2025).
2. Yash Yadav, and Yogita Kalra. Silicon slab waveguide based XOR and XNOR all optical logic gates. Journal of Micromechanics and Microengineering, 35(5), 055002 (2025).
3. Yash Yadav, and Yogita Kalra. "Realization of all optical silicon slab waveguide based universal logic gates." Optical and Quantum Electronics 57(4),1-13 (2025).
4. Vishakha Sharma, Yogita Kalra, and Ravindra Kumar Sinha, “Chiral perovskite based metasurface for linear and circular dichroism” Journal of Optics 26 e125103 (2024)
5. Vishakha Sharma, Yogita Kalra, and Ravindra Kumar Sinha, “Modelling and design of human eye inspired concentric cylindrical metalens” Optics Communications e130627 (2024)
6. Anmol Aggarwal, Ashi Mittal, and Yogita Kalra, “Design of silicon slab waveguides based all?optical logic gates,” Microwave and Optical Technology Letters 66, e33981 (2024)
7. Jyoti Chauhan, Yogita Kalra and R K Sinha, “ Chalcogenide glass-based Low Loss Graded Index Photonic Crystal Fiber for non-linear applications in the Mid-IR regime”, Results in Optics 12, 100431  (2023)
8. Ritika Ranga, Yogita Kalra, Kamal Kishor, and Nishant Shankhwar, “Ultra-narrow band perfect absorber for sensing applications in the visible region,” The European Physical Journal D 77, 42 (2023).
9. Reena Reena, Yogita Kalra, and Ajeet Kumar, “Electromagnetically induced transparency-based metal dielectric metamaterial and its terahertz sensing application,” Applied Optics 60, 10610–10616 (2021).
10. Venus Dillu, Preeti Rani, and Yogita Kalra, “Plasmon assisted tunnelling through silver nanodisk dimer-optical properties and quantum effects,” Optical and Quantum Electronics 53, 260 (2021).
11. Ritika Ranga, Yogita Kalra, and Kamal Kishor, “Design of hourglass nanoantenna for magnetic field enhancement,” Optics Communications 481 (2021).
12. Chandan Kumar, Punit, Praveen Kumar, Preeti Rani, and Yogita Kalra, “Design of photonic crystal OR gate with multi-input processing capability on a single structure,” Materials Today: Proceedings 47, Part 8 (2021).
13. Ritika Ranga, Yogita Kalra, and Kamal Kishor, “Petal-shaped nanoantenna for solar energy harvesting,” Journal of Optics 22, 035001 (2020).
14. Pooja Chauhan, Ajeet Kumar, and Yogita Kalra, “Numerical exploration of coherent supercontinuum generation in multicomponent GeSe?-As?Se?-PbSe chalcogenide-based photonic crystal fiber,” Optical Fiber Technology 54, (2020)
15. Reena Dalal, Yogita Kalra and Kumar, A. Fano Resonant Cuboidal Dielectric Nanoantennas. Opt. Spectrosc. 127, 1122–1127 (2019)
16. Pooja Chauhan, Ajeet Kumar, Yogita Kalra, "Computational modeling of tellurite based photonic crystal fiber for infrared supercontinuum generation", Optik,Volume 187,(2019)
17. Pooja Chauhan, Ajeet Kumar, Yogita Kalra,"A dispersion engineered silica-based photonic crystal fiber for supercontinuum generation in near-infrared wavelength region",Optik 187,(2019)
18. Nishant Shankhwar, Yogita Kalra, Qiang Li, and Ravindra Kumar Sinha, "Zero-index metamaterial based all-dielectric nanoantenna",035115, AIP Advances (2019)
19. Nishant Shankhwar, Yogita Kalra,and Ravindra Kumar Sinha,"All dielectric zero-index metamaterial for TE/TM polarization", J. Opt. 20 115101,(2018)
20. Yogita Kalra, Sandhya M Patel;V.N Ojha,R.K Sinha,"A simple method to estimate the loading effects of Al/Si on the characteristic impedance of multilayer microstrip line",Indian Journal of Pure & Applied Physics,Vol 56, No 12 (2018)
21. Reena Reena, Yogita Kalra, Ajeet Kumar,"Ellipsoidal all-dielectric Fano resonant core-shell metamaterials,Superlattices and Microstructures,Volume 118,(2018)
22. Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha,"LiTaO3 based metamaterial perfect absorber for terahertz spectrum,Superlattices and Microstructures,Volume 111,(2017)
23. Nishant Shankhwar, Yogita Kalra and Ravindra Kumar Sinha, "Splitnanotube based negative index metamaterial at mid infrared wavelengths ". Journal of Nanophotonics 11.2 (2017): 026014, SPIE
24. N Shankhwar, RK Sinha, Y Kalra, S Makarov, A Krasnok, P Belov, “High-Quality Laser Cavity based on All-Dielectric Metasurfaces”, Photonics and Nanostructures-Fundamentals and Applications (2017)
25. P. Rani, S. Fatima, Y. Kalra, R.K. Sinha, “Realization of all optical logic gates using universal NAND gates on photonic crystal platform”,Superlattices Microstructures. (2017)
26. Preeti Rani, Yogita Kalra, and R.K. Sinha, “Design and analysis of polarization independent all-optical logic gates in silicon-on-insulator photonic crystal’ ‘Optics Communication”, 374, 148–15 (2016)
27. Preeti Rani, Yogita Kalra, and R.K. Sinha, “Complete photonic band gap based polarization splitter on silicon-on-insulator platform”, Journal of Nanophotonics, 10(2), 026023-1 (2016)
28. Reena, Y. Kalra, A. Kumar, and R. K. Sinha, “Tunable unidirectional scattering ofellipsoidal single nanoparticle,” Journal of Applied Physics, 119, 234102 (2016)
29. Reena, T. S. Saini, A. Kumar, Y. Kalra, and R. K. Sinha, “Rectangular-core large-mode-area photonic crystal fiber for high power applications: design and analysis,” Journal of Applied Optics, 55 (15), 4095 – 4100 (2016)
30. I. Devi, R. Dalal, Y. Kalra & R. K. Sinha, Modeling and design of all-dielectric cylindrical nanoantennas. Journal of Nanophotonics, 10(4), 046011-046011 (2016)
31. J Boruah, TS Saini, Y Kalra, RK Sinha, “Temperature-dependent bending loss characteristics of W-type photonic crystal fibres: design and analysis”, Journal of Modern Optics, 1-6 (2016)
32. Preeti Rani, Yogita Kalra, and R.K. Sinha ‘Design of all optical logic gates in photonic crystal waveguides’, Optik 126, 950–955(2015)
33. Preeti Rani, Yogita Kalra, and R.K. Sinha, “Slow light enabled time and wavelength division de-multiplexer in slotted photonic crystal waveguide”, Journal of Nanophotonics, 9, 093063-1. (2015)
34. Preeti Rani, Yogita Kalra, and R.K. Sinha, ‘Realization of AND gate in Y shaped photonic crystal waveguide’, Optics Communications, 298–299, 227–231(2013)
35. J Boruah, Y Kalra, RK Sinha, “Demonstration of temperature resilient properties of 2D silicon carbide photonic crystal structures and cavity modes”, Optik-International Journal for Light and Electron Optics 125 (5), 1663-1666(2014)
36. Yogita Kalra and R. K. Sinha, “Modelling and design of complete photonic band gaps in 2D photonic crystals”,  Pramana-Journal of Physics , 70,(1), 153-161 (2008)
37. R. K. Sinha and Yogita Kalra, “Design of Optical Waveguide Polarizer using Photonic Bandgap”, Optics Express , 14(22), 10790-10794, (2006)
38. R. K. Sinha and Yogita Kalra, “Photonic Band gap Engineering in 2D Photonic Crystals”, Pramana-Journal of Physics , 67(6), 1155-1164, (2006)
39. Yogita Kalra and R. K. Sinha , “Design of Ultra compact Polarization Splitter based on the complete Photonic Band gap”, Optical & Quantum Electronics , 37(9), 889-895, (2005)
40. Yogita Nagpal and R. K. Sinha, “Modeling of Photonic Band gap Waveguide Couplers”, Microwave and Optical Technology Letters, 43(1), 47-50, (2004)
41. Yogita Nagpal and R. K. Sinha, “Polarization dependent analysis of photonic crystal directional coupler”, Journal of Microwaves and Optoelectronics, 3(.4) (2004)

Conference Publications

1. Jyoti Chauhan, Yogita Kalra, and Ravindra Kumar Sinha. "Chromatic Dispersion of Chalcogenide Glass-Based Photonic Crystal Fiber with Ultra-High Numerical Aperture." Physical Sciences Forum. Vol. 10. No. 1. MDPI, 2025.
2. Vishakha Sharma, Yogita Kalra, and Ravindra Kumar Sinha. "Dielectric metalens with reduced meta-atom aspect ratio and high focusing efficiency." Metamaterials XIV. Vol. 12568. SPIE, 2023.
3. J. Chauhan, Yogita Kalra, and R. K. Sinha, "Single-ring controlled As2Se3 Photonic Crystal Fiber for Dispersion compensation in Mid-Infrared Region”, Frontiers in Optics + Laser Science 2022 (FIO, LS), Technical Digest Series (Optica Publishing Group, 2022),
4. A. Dewan, Yogita Kalra, and R. K. Sinha, "Epsilon near zero metamaterial-based Optical Filter," in Frontiers in Optics + Laser Science 2022 (FIO, LS), Technical Digest Series (Optica Publishing Group, 2022),
5. Chauhan, Pooja, Ajeet Kumar, and Yogita Kalra, "Supercontinuum generation in a hollow-core methanol-silica based photonic crystal fiber: computational model and analysis." In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIV, vol. 11498, pp. 109-114. SPIE, 2020.
6. Ranga, Ritika, Ankush Dewan, Yogita Kalra, and Kamal Kishor. "Design of nanoantenna for magnetic field enhancement." In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, vol. 11462, pp. 119-124. SPIE, 2020.
7. Chauhan, Pooja, Ajeet Kumar, and Yogita Kalra, "Ultra-coherent supercontinuum generation in isopropanol-silica based photonic crystal fiber at 1300nm and 1600nm wavelengths", In Photonic and Phononic Properties of Engineered Nanostructures X, vol. 11289, pp. 156-161. SPIE, 2020.
8. B. Singh, Yogita Kalra, and K. Kishor, "Dielectric Metamaterial based Broadband Reflector in Visible spectrum", in Frontiers in Optics + Laser Science APS/DLS, OSA Technical Digest (Optica Publishing Group, 2019), paper JTu4A.73.
9. P. Chauhan, A. Kumar, and Y. Kalra, "Mid-Infrared Supercontinuum Generation in Highly Nonlinear AsSe2 Chalcogenide Circular Photonic Crystal Fiber", in Frontiers in Optics + Laser Science APS/DLS, OSA Technical Digest (Optica Publishing Group, 2019), paper JTu3A.34.
10. Chauhan, Pooja, Ajeet Kumar, Yogita Kalra, and Than Singh Saini. "A multicomponent GAP-Se chalcogenide composition-based rectangular photonic crystal fiber for coherent supercontinuum generation", In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIII, vol. 11123, pp. 150-155. SPIE, 2019.
11. Ranga, Ritika, Yogita Kalra, and Kamal Kishor,"Design of arrow shaped nanoantenna for electric field enhancement", In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVII, vol. 11082, pp. 124-128. SPIE, 2019.
12. Goyal, Parul, Nishant Shankhwar, and Yogita Kalra, "Design and analysis of a hollow bowtie nanoantenna", In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVI, vol. 10722, pp. 123-129. SPIE, 2018.
13. Dalal, Reena, Yogita Kalra, and Ajeet Kumar, "Enhancement of Purcell factor in all-dielectric dimer", In Nanophotonic Materials XV, vol. 10720, pp. 71-76. SPIE, 2018.
14. Nishant Shankhwar , Yogita Kalra, and Ravindra Kumar Sinha "Dielectric zero-index metamaterial filled photonic crystal defect waveguide: design and analysis", In Metamaterials, Metadevices, and Metasystems 2018, vol. 10719, pp. 72-77. SPIE, 2018.
15. Ritika Ranga, Nishant Shankhwar, and Yogita Kalra, "Design and Analysis of Broadband Square Spiral Shaped Nanoantenna", in Frontiers in Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JTu2A.105.
16. Pooja Chauhan, A. Kumar, Yogita Kalra, and T. Singh Saini, "Rectangular Core Dispersion Engineered Photonic Crystal Fiber for Supercontinuum Generation", in Frontiers in Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JW4A.69.
17. P. Goyal, Nishant Shankhwar, and Yogita Kalra, "Near Field Enhancement in a Hollow Flower Shaped Nanoantenna", in Frontiers in Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JTu2A.113.
18. N. Shankhwar, Yogita Kalra, and R. K. Sinha, "Honeycomb photonic crystal as a zero index metamaterial", in Frontiers in Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JTu2A.104
19. Chauhan, Pooja, Ajeet Kumar, Yogita Kalra, and Than Singh Saini. "Highly nonlinear spiral shaped photonic crystal fiber in a Ga-Sb-S chalcogenide glass for nonlinear applications", In Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XII, vol. 10755, pp. 146-151. SPIE, 2018.
20. Parul Goyal, Nishant Shankhwar, and Yogita Kalra,” Design of a cross structure nanoantenna”, AIP Conference Proceedings 2009, 020044 (2018).
21. Pooja Chauhan, Ajeet Kumar, Yogita Kalra, and Than Singh Saini, “Design and analysis of photonic crystal fiber in Ga-Sb-S chalcogenide glass for nonlinear applications”, AIP Conference Proceedings 2009, 020047 (2018).
22. Pooja Chauhan, A. Kumar, T. S. Saini, and Yogita Kalra, "Nanostructural-Core Photonic Crystal Fiber with Very Low Negative Dispersion for Nonlinear Applications", in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper JW4A.120.
23. Nishant Shankhwar, Yogita Kalra, and R. K. Sinha, "Dielectric veins type photonic crystal as a zero-index-metamaterial," in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper FM3D.8
24. Reena, Nishant Shankhwar ,Yogita Kalra,Kumar, A. and R.K  Sinha ,2017, August. All-dielectric cylindrical nanoantennas in the visible range. In Nanophotonic Materials XIV (Vol. 10344, pp. 36-41). SPIE.
25. Tomer, S., Shankhwar, N., Yogita Kalra and Sinha, R.K., 2017, August. “Plasmonic waveguides based optical AND gate”. In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV (Vol. 10346, pp. 132-137). SPIE.
26. Nishant Shankhwar, Reena Dalal, Yogita Kalra And R.K Sinha 2017, August. LiTaO3 microcubes based metamaterial perfect absorber. In Metamaterials, Metadevices, and Metasystems 2017 (Vol. 10343, pp. 97-102). SPIE.
27. Pooja Chauhan, Ajeet Kumar, Yogita Kalra, and Than Singh Saini,"Design and analysis of photonic crystal fiber in Ga-Sb-S chalcogenide glass for nonlinear applications, AIP Conference Proceedings 2009, 020047 (2018).
28. P. Chauhan, A. Kumar, T. S. Saini, and Yogita Kalra, "Nanostructural-Core Photonic Crystal Fiber with Very Low Negative Dispersion for Nonlinear Applications," in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017).
29. Nishant Shankhwar, Yogita Kalra, and R. K. Sinha, "Dielectric veins type photonic crystal as a zero-index-metamaterial," in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017)
30. Reena Dalal , Nishant Shankhwar, Yogita Kalra, A. Kumar, and R. K. Sinha, "Fano resonant all-dielectric core-shell nanoparticles," in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017),
31. Dalal, R., Nishant Shankhwar ,Yogita Kalra ,Kumar, A. and Sinha, R.K., 2017, August. All-dielectric cylindrical nanoantennas in the visible range. In Nanophotonic Materials XIV (Vol. 10344, pp. 36-41). SPIE.
32. Tomer, S., Nishant Shankhwar ,Yogita Kalra and Sinha, R.K., 2017, August. Plasmonic waveguides based optical AND gate. In Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV (Vol. 10346, pp. 132-137). SPIE.
33. Nishant Shankhwar ,Reena, Yogita Kalra and Sinha, R.K., 2017, August. LiTaO3 microcubes based metamaterial perfect absorber. In Metamaterials, Metadevices, and Metasystems 2017 (Vol. 10343, pp. 97-102). SPIE.
34. Sharma, S., Nishant Shankhwar ,Yogita Kalra and Sinha, R.K., 2017, August. Design and analysis of tip slotted square patch nano-antenna. In Metamaterials, Metadevices, and Metasystems 2017 (Vol. 10343, pp. 130-136). SPIE.
35. Nishant Shankhwar ,Yogita Kalra and Sinha, R.K., 2017. Split-nanotube-based negative index metamaterial for midinfrared wavelengths. Journal of Nanophotonics, 11(2), pp.026014-026014.
36. Preeti Rani, Yogita Kalra, and R. K. Sinha, "Optical logic operation using universal NOR gate," in 13th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2016).
37. Reena Dalal, Yogita Kalra, and R. K. Sinha, "Forward scattering by the cylindrical dielectric nanoparticle," in 13th International Conference on Fiber Optics and Photonics, OSA Technical Digest (online) (Optica Publishing Group, 2016)
38. Reena, Yogita Kalra, and R. K. Sinha, "Electric and magnetic hotspots in the Silicon Bow-Tie nanocavity," in Frontiers in Optics 2016, OSA Technical Digest (online) (Optica Publishing Group, 2016).
39. N. Shankhwar, R. K. Sinha, and Yogita Kalra, "Magnetic response of split nanotube type metamaterial at near infrared frequency," in Frontiers in Optics 2016, OSA Technical Digest (online) (Optica Publishing Group), 2016
40. Devi, I., Dalal, R., Yogita Kalra and Sinha, R.K., 2016. Modeling and design of all-dielectric cylindrical nanoantennas. Journal of nanophotonics, 10(4), pp.046011-046011.
41. Devi, I., Yogita Kalra and Sinha, R.K., 2016, September. Design of tunable cylindrical dielectric nanoantenna. In Nanophotonic Materials XIII (Vol. 9919, p. 991903). SPIE.
42. Nishant Shankhwar, Sinha, R.K. and Yogita Kalra 2016, September. Controlling the evanescent waves using metamaterials. In Metamaterials, Metadevices, and Metasystems 2016 (Vol. 9918, pp. 187-192). SPIE.
43. Devi, I., Yogita Kalra and Sinha, R.K., 2016, September. Multipolar optically induced electric and magnetic resonances in the ellipsoidal nanoparticles. In Nanophotonic Materials XIII (Vol. 9919, pp. 94-101). SPIE.
44. FATIMA, Yogita Kalra , 2016. Design of All-Optical Logic Gates Using NAND Gate in Photonic Crystal Waveguides (Doctoral dissertation).
45. Ashwini Agrawal, Preeti Rani, Yogita Kalra and R.K. Sinha,  ‘Enhanced imaged resolution in photonic crystal structure by modification of the surface structure’, SPIE Optics +Photonic 2016: Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications X, 95860X San Diego USA (2016)
46. Shiba Fatima, Preeti Rani, Yogita Kalra, and R.K. Sinha, (2016) ‘Design of AND optical logic gate using NAND gate in photonic crystal waveguides’, SPIE Optics +Photonic 2016: Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Devuce applications X, 95860X , San Diego USA (2016)
47. Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha, “Controlling evanescent waves using metamaterials", Proceedings of SPIE Optics and Photonics 2016, I.I.T. Kanpur, India (2016)
48. Nishant Shankhwar Ravindra Kumar Sinha and  Yogita Kalra, " Magnetic response of split nanotube metamaterial at near infrared frequency", Frontiers of Optics (2016)
49. Reena Dalal, Yogita Kalra, R.K.Sinha ,“Mie resonance in arrays of Dielectric rods”, Proc,  SPIE 9544, Metamaterials, Metadevices, and Metasystems, ( 2015)
50.  Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha ,“Design and analysis of near perfect metamaterial reflector in visible range”, Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 95441O (2015)
51. Preeti Rani, Yogita Kalra, R. K. Sinha ,“Slow light effect in pinch waveguide in photonic crystal”,  Proc. SPIE 9586, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IX, 95860X  (2015)
52. Preeti Rani, Reena Dalal, Yogita Kalra, and R.K. Sinha,  “Polarization splitter in silicon-on-insulator photonic crystal; design and simulation”, Frontiers in Optics 2054/Laser Science XXIX © OSA 2014, October 18-22, 2015. San Jose, California, USA: Optical Society of America (2015)
53. Reena Dalal, Rani, Preeti, Yogita Kalra and Sinha, R.K.  “Zero back scattering by ellipsoidal single nanoparticle”, Frontiers in Optics 2054/Laser Science XXIX © OSA 2014, October 18-22, 2015. San Jose, California, USA: Optical Society of America (2015)
54. Preeti Rani, Yogita Kalra, R. K. Sinha “Slow light enhanced slotted photonic crystal waveguide” Proc. of Photonics 2014:  12th International Conference on Fiber Optics and Photonics, IIT Kharagpur, WB, India, December 13-16(2014)
55. Preeti Rani, Yogita Kalra, R.K.Sinha, “Refractive Index Sensor based on Slow Light in Photonic Crystal on SOI Plateform”,  Frontier in Optics, OSA Technical Digest, paper number, JW3A.32,  October 19-23 (2014)
56. Preeti Rani, Yogita Kalra, Venus Dilu, Ravindra K. Sinha ,“Photonic Crystal based nano-displacement sensor”, Proc. SPIE 9200, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII, 92000Q (2014)
57. Preeti Rani, Venus Dillu , Yogita Kalra and R.K. Sinha, “Field enhanced plexitonic coupling between InAs quantum dots and silver film: Highly sensitive plasmonic composite”, Spie Optics + Photonics 2014 (Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91630W) 10 September 2014. San Diego USA(2014)                                                    
58. Preeti Rani, Yogita Kalra and R. K. Sinha “Photonic crystal based highly sensitive displacement sensor”, International Conference on Optics & Optoelectronics”, ICOL-2014), (XXXVIII Symposium of Optical Society of India), OSI Golden Jubilee Celebration Conference, Instruments Research and Development Establishment (IRDE), Dehradun, Uttarakhand, 5 – 8 March 2014,  OP-NPP-06 (2014)
59. Nishant Shankhwar, Yogita Kalra, Ravindra Kumar Sinha, “Design of Near-field Superlens with silver multilayer in silicon host”, Proceedings of International OSA Network of Students Asia 6, 10 -12 December 2014, Kharagpur, West Bengal , India.(2014)
60. Preeti Rani, Yogita Kalra, and R.K. Sinha, “Design of AND Optical Logic Gate in Photonic Crystal Waveguide”, Frontiers in Optics 2013/Laser Science XXIX © OSA 2013, October 6-10, 2013. Orlando Florida, USA: Optical Society of America (2013)
61. Preeti Rani, Yogita Kalra, and R.K. Sinha, “Design and Operation of Photonic Crystal based AND Optical Logic Gate”, Presented at WRAP, 17-18 Dec. 2013. IIT Delhi (2013)
62. Himanshu Chauhan, Preeti Rani, Yogita Kalra, and R.K. Sinha,”Novel Design of a Highly Sensitive Micro-Displacement Sensor based on Photonic Crystal Waveguides”, Presented at WRAP, 17-18 Dec. 2013. IIT Delhi (2013)
63. Ravindra K. Sinha, Preeti Rani and Yogita Kalra, “Design of Photonic Crystal Architecture for Optical Logic and Gates”,  Proceedings of SPIE, Optics+Photonics Conference, 8847,  33, S4, San Diego, CA, USA August 25-29(2013.)
64. Yogita Kalra, Jiten Borauh and R.K.Sinha,“Design of 2D Silicon Carbide based Photonic Crystal Waveguides”, Proceedings of XXXVI OSI Symposium, Frontiers in Optics and Photonics, IIT Delhi ,December 03-05 (2011)
65. Yogita Kalra, Jiten Boruah and R.K.Sinha, “ Thermooptic effect in Si and SiC Photonic Crystal Waveguides”, Proceedings of National Conference on Recent Trends in Synthesis and Applications of Advanced Materials , 5-6 December 2011 , Guru Gobind Singh University,Delhi
66. Yogita Kalra and R.K.Sinha, “ Design of Single Mode PBG Polarizer”, Proceedings of Photonics 2006, 13-16 December 2006 , University of Hyderabad, India
67. R. K. Sinha and Yogita Kalra, “ Polarization Splitter based on the Complete Photonic  Band Gap Structure” , Proceedings of Photonics 2006, 13-16 December 2006 , University  of Hyderabad, India
68. R. K. Sinha and Yogita Nagpal, “ Design of Ultra Compact Polarization Splitter based on the Complete Photonic Band Gap” , Proceedings of Optics East 2005, Boston,Massachussetts,USA
69. Yogita Kalra and R.K.Sinha, “ Photonic Band Gap Polarizer”, Proceedings of ICOL-2005,12-15 December 2005,IRDE, Dehradun,India
70. R. K. Sinha and Yogita Nagpal, “ Ultra Short Coupler based on Complete Photonic Band Gap Structures” , Proceedings of Photonics 2004, December 9-11 2004 , Cochin University of Science and Technology, Cochin
71. Yogita Nagpal and R.K.Sinha , “ Effect of Ellipticity on Photonic Band Gaps in 2D Photonic Crystals”, Proceedings of Photonics 2004 , December 9-11 2004, Cochin University of Science and Technology, Cochin
72. Yogita Nagpal and R.K.Sinha, “ Ellipticity Induced Photonic Band Gap Engineering in 2D Photonic Crystals” , Proceedings of Asia Pacific Microwave Conference,15-18 December 2004,University of Delhi, India