Indian Institute of Technology Ropar
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Laboratory for Nanoscale Optics and Metamaterials (LaNOM)
Department of Physics, IIT Ropar

Publications

  1. Megha Khokhar, Nitesh Singh, and Rajesh V. Nair, “Stacked metasurfaces for enhancing the emission and extraction rate of single nitrogen-vacancy centers in nanodiamond”, Journal of Optics (Accepted, 2021).
  2. Megha Khokhar and Rajesh V. Nair, “Structure-induced broadband tunable resonances in soft material based dielectric metasurfaces”, Journal of Applied Physics 130, 143103 (2021)
  3. Megha Khokhar, Sachin Sharma, Sudhir K. Saini, and Rajesh V. Nair, “Enhancing the spontaneous emission using the structural resonances of self-assembled monolayers”, Journal of Optics 23, 085004 (2021).
  4. Priyanka, Sudhir K. Saini, Sachin Sharma, Nitesh Singh, Megha Khokhar, and Rajesh V. Nair, “Smart strategy of butterfly wing scales to control the light diffusion and absorption”, J. Optical Society of America B 38, 2297 (2021).
  5. Heena Sammi, Rajesh V. Nair, and Neha Sardana, “Recent advances in nanoporous AAO based substrates for surface-enhanced Raman scattering,” Materials Today: Proceedings 41, part 4, 843 (2021).
  6. Sudhir Kumar Saini and Rajesh V. Nair, “Selective frequency gap induced negative anisotropic scattering in designer photonic structures with short-range order,” Physical Review A (Accepted, 2020).
  7. Sachin Sharma and Rajesh V. Nair, “Spectrally selective modification in the emission lifetimes of nitrogen vacancy centers in nanodiamonds,” Journal of Optics 22, 095004 (2020).
  8. Sudhir K. Saini and Rajesh V. Nair, “Probing the optimal refractive index profile of disordered silicon nanowires for photon management applications,” Optical Materials 109, 110241 (2020).
  9. Khalid Naim, Manjeet Singh, Sachin Sharma, Rajesh V. Nair, PalothVenugopalan, Subash Chandra Sahoo, and Prakash P. Neelakandan, “Exceptionally Plastic/Elastic Organic Crystals of a Naphthalidenimine-Boron Complex Show Flexible Optical Waveguide Properties,” Chemistry-A European Journal (In press, 2020).
  10. Megha Khokhar, Priya, and Rajesh V. Nair, “Observation of finite-size induced emission decay rates in self-assembled photonic crystals,” Physical Review A 102, 013502 (2020).
  11. Sachin Sharma and Rajesh V. Nair, “Charge-state conversion in nitrogen-vacancy centers mediated by an engineered photonic environment,” Physical Review A 101, 043420 (2020).
  12. Sudhir K. Saini, Moumita Halder, Yashveer Singh, and Rajesh V. Nair, “Bactericidal Characteristics of Bioinspired Nontoxic and Chemically Stable Disordered Silicon Nanopyramids,” ACS Biomaterials Science & Engineering 6, 2778, (2020).
  13. Omshankar, Priya, and Rajesh V Nair, "Polarization-dependent multiple Bragg diffraction in the high-energy region of three-dimensional photonic crystals," Journal of Optical Society of America B36, 2338 (2019).
  14. Rajesh V. Nair, "The interaction between optical Tamm state and microcavity mode in a planar hybrid plasmonic-photonic structure," Photonics and Nanostructures-Fundamentals and Applications (Accepted, In Press 2019).
  15. Priya and Rajesh V. Nair, "Scaling the spatial fluctuation of spontaneous emission suppression in photonic crystals," Optics Letters44, 2811(2019).
  16. Sudhir K Saini and Rajesh V Nair, "Quantitative analysis of gradient effective refractive index in silicon nanowires for broadband light trapping and anti-reflective properties" Journal of Applied Physics125, 103102 (2019).
  17. Sachin Sharma, Priya, Sudhir K. Saini, and Rajesh V. Nair "A versatile micro-reflectivity set-up for probing the optical properties of photonic nanostructures," Review of Scientific Instruments90, 023103 (2019).
  18. Priya, Oliver Schops, Ulrike Woggon, and Rajesh V. Nair, "Inhibited spontaneous emission using gap-like resonance in disordered photonic structures," Physical Review A98, 043835 (2018).
  19. Sachin Sharma and Rajesh V. Nair, "Nanophotonic control of the color center emission from nanodiamonds," Optics Letters43, 3989 (2018). This article is Editors Pick and also a cover story in "Physics World" magazine. https://physicsworld.com/a/nanodiamonds-shine-brighter/
  20. Priya and Rajesh V. Nair, "Observation of wavelength-dependent Brewster angle shift in 3D photonic crystals," Journal of Optics19, 065001 (2017).
  21. Priya and Rajesh V. Nair, "Polarization-selective stop gap branching in three-dimensional photonic crystals," Physical Review A93,063850 (2016).
  22. Rajesh V. Nair, "Self-assembled photonic crystals with tunable optical properties," Proceedings of Indian National Science Academy82, 1, (2016). This work appeared in the cover page.
  23. Rajesh V. Nair and B. N. Jagatap, "Multiple Bragg diffraction at W point in the face centered cubic photonic crystals," J. Nanophotonics, 9, 093076, (2015).
  24. Rajesh V. Nair, Anjani K Tiwari, Sushil Mujumdar, and B NJagatap, "Inhibition and enhancement of spontaneous emission using photonic band gap structures," Advanced Material Letters4, 497 (2013).
  25. Rajesh V Nair and B. N. Jagatap, "Engineering disorder in three-dimensional photonic crystals," Photonics and Nanostructures-Fundamentals and Applications10, 581 (2012).
  26. Rajesh V. Nair, Anjani K Tiwari, Sushil Mujumdar, and B NJagatap, "Photonic-band-edge-induced lasing in self-assembled dye-activated photonic crystals," Physical Review A85, 023844 (2012). Highlighted in Optics and Photonic News of Optical Society of America:Optics & Photonics News Vol. 23, No. 5, May 2012. Highlighted in Nature:http://www.nature.com/nindia/2012/120330/full/nindia.2012.46.html
  27. Simon Huisman, Rajesh V. Nair, Alex Hartsuiker, Leon Woldering, Allard P Mosk, and Willem Vos "Observation of sub-Bragg diffraction of waves in crystals," Physical Review Letters108, 083901 (2012). Highlighted in Science Magazine: http://news.sciencemag.org/sciencenow/2012/01/breaking-the-law-or-bending-the-.html. Also appeared in the PRL cover page
  28. Rajesh V. Nair and B. N. Jagatap, "Bragg wave coupling in self-assembled opal photonic crystals," Physical Review A 85, 013829, (2012). Highlighted in Nature portal: http://www.nature.com/nindia/2012/120227/full/nindia.2012.28.html
  29. Simon R. Huisman, Rajesh V. Nair, Leon A. Woldering,Merel D. Leistikow, Allard P. Mosk, and W. L. Vos,"Signature of a three-dimensional photonic band gap observed with silicon inverse woodpile photonic crystals," Physical Review B83, 205313 (2011).
  30. Rajesh V. Nairand R. Vijaya, "Photonic Crystal Sensors: An Overview", [Invited review article], Progress in Quantum. Electronics, 34, 89-134 (2010).
  31. Rajesh V. Nair and R. Vijaya, "Tunable photonic stop band in the wavelength region of fiber-optic communication", Optical Materials, 32, 387-391, (2009).
  32. Rajesh V. Nair and R. Vijaya, "Multiple Bragg diffraction in polymeric photonic crystals", Applied Optics, 48, G59-G63, (2009).
  33. Rajesh V. Nair and R. Vijaya, "Reply to "Comment on `Observation of higher-order diffraction features in self-assembled photonic crystals", Physical Review A, 78,037802-1-2, (2008) [Featured in Virtual Journal of Nanoscale Science and Technology, Vol.18, Issue 13, Sept. 29, 2008]
  34. Rajesh V. Nair and R. Vijaya, "Structural and optical characterization of photonic crystals synthesized using the inward growing self-assembling method", Applied Physics A,90, 559-563, (2008).
  35. Rajesh V. Nair, R. Vijaya, Keiji Kuroda, and Kazuaki Sakoda, "Emission studies on photonic crystals fabricated using dyed polystyrene colloids", Journal of Applied Physics,102, 123106-1-5, (2007).
  36. Rajesh V. Nair and R. Vijaya, "Observation of higher-order diffraction features in selfassembled photonic crystals", Physical Review A, 76, 053805 (2007) [Featured inVirtual Journal of Nanoscale science and Technology, Vol. 16, Issue 21, Nov. 19, 2007].
  37. Rajesh V. Nair and R. Vijaya, "Three dimensionally ordered photonic crystal heterostructures with a double photonic stop band", Journal of Applied Physics, Vol. 102,056102-1-3 (2007) [Featured in Virtual Journal of Nanoscale science and Technology, Vol.16, Issue 13, Sept. 24, 2007].
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  39. Rajesh V. Nair and R. Vijaya, "Optical properties of functionalized photonic crystals" SPIE Proce. Vol. 6796, (2007).
  40. Rajesh V. Nair and R. Vijaya, "Infiltration of ZnO in polymeric photonic crystal by sol gel process", Journal of Physics D: Applied Physics, 40, 990-997, (2007).
  41. Rajesh V. Nair and R. Vijaya, "Preparation and characterization of three-dimensional photonic crystals of high optical quality in thin film form" Nano Trends: A Journal of Nanotechnology and its Applications, 1, 12-26, (2006).
  1. Oral Presentation, “Structure-induced broadband tunable resonances in soft material based Dielectric metasurfaces”, Frontiers in Optics and Photonics, IIT Delhi (2021) Best Oral Presentation Award.
  2. Poster Presentation, M Khokhar, FA Inam, and RV Nair, “Spontaneous emission enhancement of quantum emitter using resonant Kerker condition in high refractive index metasurfaces”, Metamaterials, Metadevices, and Metasystems 11795 (2021), SPIE Photonics.
  3. Poster Conference, “Engineering the spontaneous emission of nitrogen-vacancy centers using resonances associated with photonic monolayers”, IOP Publishing Twitter (2019).
  4. Sachin Sharma and Rajesh V. Nair,[Online Oral] " Modulation of charge state dynamics of nitrogen vacancy centers induced by the local density of optical states", SPIE Optics + Photonics 2020 Digital Forum August 2020
  5. Sudhir Kumar Saini and Rajesh V. Nair,[Oral] " Estimation of refractive index profiles of vertically aligned disordered silicon nanowires for photon management applications", SPIE Micro + Nano Materials, Devices, and Applications December 2019 Melbourne, Australia.
  6. Megha Khokhar and Rajesh V. Nair,[Oral] " Studies of resonant modes associated with two-dimensional photonic monolayers", International conference on optics and electro-optics (ICOL) October 2019,IRDE, Dehradun, Uttarakhand, India.
  7. Sachin Sharma and Rajesh V. Nair,[Oral] "Charge State dynamics of NV centers in Nanodiamonds modified by Photonic stop gaps", International conference on optics and electro-optics (ICOL) October 2019,IRDE, Dehradun, Uttarakhand, India.
  8. Sudhir Kumar Saini and Rajesh V. Nair,[Oral] "Studies on the origin of gap like resonance in photonic structures with short-range order", International conference on optics and electro-optics (ICOL) October 2019,IRDE, Dehradun,Uttarakhand,India.
  9. Sachin Sharma and Rajesh V. Nair,[Poster] "Modifying the Emission Rate of Color Centers in Nanodiamonds using Photonic Crystals", Symposium Latsis-2019 on DiamondPhotonics-Physics,Technologies & Applications, may 2019, EPFL Lausanne Switzerland.
  10. Megha Khokhar and Rajesh V. Nair,[Poster] "Observation of resonant modes in two-dimensional photonic monolayers",MRSI Conference February 2019 IISc Bangalore, India.
  11. Sachin Sharma and Rajesh V. Nair, [Oral] PHOTONICS 2018: InternationalConference on Fiber Optics and Photonics, December 2018, IIT Delhi, India.
  12. Sudhir Kumar Saini and Rajesh V. Nair, [Poster] PHOTONICS 2018: InternationalConference on Fiber Optics and Photonics, December 2018, IIT Delhi, India.
  13. Priya and Rajesh V. Nair, [Poster] PHOTONICS 2018: InternationalConference on Fiber Optics and Photonics, December 2018, IIT Delhi, India.
  14. Sachin Sharma and Rajesh V. Nair, [Oral] "Modified spontaneous emission from color centers of nanodiamonds using photonic stop gaps," Student Conference on Optics and Photonics (SCOP) - 2016 at PRL Ahmadabad October 4-6, 2018.
  15. Sudhir Kumar Saini and Rajesh V. Nair, [Poster]"Optical studies of disordered silicon nanowires for photonic and energy applications", International Conference on Advances in Optics and Photonics (ICAOP-2017) November 23-26, 2017, Hisar Haryana.
  16. Priya and Rajesh V. Nair, [Poster] "Observation of strong photonic effects from single domains of 3D photonic crystals" 18th Int. Conf. in Light Matter Coupling inNanostructures, Jul. 9th-14th, 2017 in Wurzburg, Germany.
  17. Priya and Rajesh V. Nair, [Oral] "Angle-dependent suppression of spontaneous emission in 3D photonic crystals," 3rd URSI Regional Conference on RadioScience, Mar. 01st-04th, 2017, Tirupati, Andhra Pradesh, India
  18. Sachin Sharma and Rajesh V. Nair, [Poster] "Control of nanodiamonds emission using photonic crystals," International Workshop on ComplexPhotonics, Jan. 22nd-24th, 2017, Tata Institute of Fundamental Research (TIFR), Mumbai, India
  19. Priya and Rajesh V. Nair, [Poster] "Spatial mapping of spontaneous emission from single domain in photonic crystals," International Workshop on ComplexPhotonics, Jan. 22nd-24th, 2017, Tata Institute of Fundamental Research (TIFR), Mumbai, India
  20. Priya and Rajesh V. Nair, [Oral] "Wavelength-selective polarization anisotropy in three-dimensional photonic crystals,"_ PHOTONICS 2016: InternationalConference on Fiber Optics and Photonics, Dec. 04th -08th, 2016, IIT Kanpur, India
  21. Priya and Rajesh V. Nair, [poster] "Impact of light polarization in the origin of stop gaps in three-dimensional photonic crystals", Frontiers in Light-Matter Interactions (FiLMI 2016), IIT Ropar, March 2016, India. This poster received the best poster prize.
  22. Dishiti Gupta and Rajesh V. Nair [poster] "Optical Surface States at the Interface between a Metal and Dielectric Nanophotonic Structure," IEEE sponsored workshop on recent advances in photonics, Indian Institute of Science, 16-17, December 2015.
  23. Priya and Rajesh V. Nair, [poster] "Polarization-induced branching of photonic stop gaps in three-dimensional photonic crystals," 2nd URSI International Conference on Radio Science, 16-19th November 2015, JNU, New Delhi, India.
  1. Light transport and emission using photonic nanoarchitectures: from order to tailored disorder, May 2020, IIT Bombay.
  2. Molding the light transport and emission using engineered photonic structures, March 2020, Lomonosov Moscow State University, Russia.
  3. Scaling of spontaneous emission suppression in photonic crystals, Topical Meeting on Photonics, March 2019, NISER Bhubaneswar, India.
  4. The finite-size and disorder-induced modification of spontaneous emission in photonic crystals, Facets of Photonics, IISER Pune India Dec. 24-26, 2018.
  5. Tailoring light-matter interactions using three-dimensional photonic crystals,International Conference of Young Researchers on Advanced Materials (IUMRS-ICYRAM 2016) at IISc Bangalore, Dec. 11-15, 2016.
  6. Symmetry-induced optical interactions in photonic crystals, 13thInternational Conference on Fiber Optics and Photonics (PHOTONICS2016) at IIT Kanpur, Dec. 04 - 08, 2016
  7. Photonic Crystals: Physics and Applications, 10th Chandigarh Science Congress, March, 2016, Punjab University, Chandigarh India.
  8. Tuning the light-matter interactions using photonic meta-materials, International conference on Nanoscience and Nanotechnology (COCHIN-2016), Cochin, February 2016, Cochin India.
  9. Tailoring light-matter interactions using 3D photonic crystals, 3rd DAE-BRNS National Workshop on Material Chemistry (NWMC-2015) with focus on opticalmaterials, 20-21 November, 2015, BARC, Mumbai.
  10. Photonic Band Gap Crystals: A novel route for tuning the light emission and propagation, IRDE Science Forum Lecture, DRDO, Dehradun 6th February, 2015.
  11. Light transport in nanophotonic structures with gain,Current Development in Atomic, Molecular, Optical and Nano Physics with Applications (CDAMOP 2015), University of Delhi, Delhi, India.
  12. Light transport and emission in 3D photonic crystals, 23rd Annual meeting of International Commission on Optics (ICO-23), Santiago De Compestella, Spain, August, 2014.
  13. Tailoring light-matter interactions in engineered photonic meta-materials, 101th Indian Science Congress, Jammu University, February 2014, Jammu.
  14. Tutorial session on "photonic crystals" as part of National Laser Symposium (NLS-21), February 2013 at Tata Institute of Fundamental Research, Mumbai, India.
  15. Tailoring spontaneous emission using photonic band gap structures, International Conference on Luminescence and its Applications (ICLA-2012), 7-10th February, 2012, Hyderabad, India.
  16. Self-assembled nanostructures for photonics applications, Young Scientist Award Lecture, 99th Indian Science Congress, January 3-7, 2012, KIIT University, Bhubaneswar, India.
  17. Inhibition and enhancement of spontaneous emission using photonic band gap structures, DAE-BRNS Theme Meeting on Emerging Trends in Applications of Lasers & Accelerators in Nanomaterials ((ETALAN-2011)," October 20-21, 2011, BARC, Mumbai.
  18. Lectures on "photonic crystals" in the Faculty Development Program on Photonic materials and Devices (Sponsored by MHRD, Govt. of India) at NIT Calicut, Kerala, 28th February, 2011.
  19. Self-assembled 3D photonic crystals, LAMP Seminar, Winter College on Optics in Imaging Science, February 07, 2011, ICTP, Trieste, Italy.
  20. Light propagation in Silicon photonic crystals, February 18, 2010, Institute for Applied Physics, University of Munster, Germany.
  21. Tuning the light transport and emission using 3D photonic crystals, International Workshop on Photonics: Fundamentals and Applications ICTP-Eurasian Center for Advanced Research, August, 2015, Izmir, Turkey.