Conferences & Talks

2026

  1. R. Menon, “High-dimensional imaging”, Crane Naval Surface Warfare Ccenter, Crane, IN, Feb. 2026 (invited).
  2. R. Menon, “Metalenses for 3D beam-shaping”, APOMA Annual Meeting, San Francisco, CA Jan. 2026 (invited).

2025

  1. R. Menon, “Multi-Dimensional Imaging: How can we extract maximal information from light?,”VII “Rio de la Plata” Workshop on Optics and Photonics, Punta del Este, Uruguay, Dec. 15-17, 2025 (invited).
  2. R. Menon, “Perspectives on imaging with flat optics.,”International Conference on Recent Advances in Photonics and Quantum Technologies, Kochi, India Nov. 26-28, 2025 (invited).
  3. R. Menon, “Focus shaping via flat optics,” SPIE Optics & Photonics, August 2025.
  4. R. Menon, “Multi-dimensional imaging,” Tampere Imaging Days, Finland, June 2025. (invited).
  5. D. Lin, et al., “Single-exposure Volumetric Holographic Additive Manufacturing,” EIPBN 2025, Savannah GA, May-June 2025.
  6. T. M. Hayward, et al., “Generating Optical Vortex Needle Beams with a Flat Diffractive Lens,” EIPBN 2025, Savannah GA, May-June 2025.
  7. T. M. Hayward, et al., “Device Fabrication a Centimeter-scale Torsion Pendulum,” EIPBN 2025, Savannah GA, May-June 2025.
  8. A. Ingold, et al., “Field-Deployable UV Autofluorescence Microscopes for Monitoring Plant Physiology in Forest Ecosystems,” CLEO 2025, Long Beach CA May 2025.
  9. R. Baird, et al., “Dynamic Spectral fluorescence microscopy via Event-based & CMOS image-sensor fusion,” CLEO 2025, Long Beach CA May 2025.
  10. R. Menon, et al., “Focus-shaping via flat optics,” CLEO 2025, Long Beach CA May 2025 (invited).
  11. K. Zhou, et al., “High-spatiotemporal-throughput video microscopy of freely moving organisms with diffractive multiplexing across a sensor array,” SPIE Photonics West, San Francisco, CA, Jan 2025.

2024

  1. A. Kumari, et al., “Focused optical vortices with a large depth-of-focus,” OPTOIn-2024,  23-25 October 2024, CSIO, Chandigarh, India. (link).
  2. M. Yessenov, et al., “Compact synthesis setup for space-time wave packets,” Frontiers in Optics + Laser Science, Denver, CO, Sept. 23-26, 2024.
  3. R. Menon, “Perspectives on imaging with diffractive flat optics,” European Light Field Imaging Workshop, Sozopol Bulgaria, 25 – 27 June 2024 (invited).
  4. Tina M. Hayward, Dongchel Shin, Ethan Zentner, Brian Baker, Rajesh Menon, Vivishek Sudhir, “Device Fabrication for Optical Lever Measurement of Torsional Motion,” (poster) EIPBN La Jolla CA May 28-31, 2024.
  5. Tina M. Hayward, Robert Stewart, Dajun Lin, Rajesh Menon, Apratim Majumder, “Fabrication of FDTD-based inverse design enables f/0.27 flat microlens array for integral imaging,” EIPBN La Jolla CA May 28-31, 2024.
  6. Dajun Lin, Fei Yang Lyu, Apratim Majumder, Ji-Won Kim, Connor J O’dea, Kwon Sang Lee, Michael Cullinan, Chih-Hao Chang, Zachariah A. Page, Rajesh Menon, “Single-exposure Millimeter-scale Volumetric Holographic Additive Manufacturing,” EIPBN La Jolla CA May 28-31, 2024.
  7. D. Lin, A. Majumder & R. Menon, “Diffraction-free orbital angular momentum holography,” CLEO Charlotte, NC May 6-10, 2024.
  8. D. Lin, A. Majumder & R. Menon, “Inch-scale achromatic planar flat lens doublet reshaping near-eye display ,” CLEO Charlotte, NC May 6-10, 2024.

2023

  1. T. M. Hayward, A. Majumder & R. Menon, “Multi-level diffractive lenses (MDL) with extended depth-of-focus (EDOF) over 50mm Fabricated by Grayscale Lithography for Laser Cutting Applications,” EIPBN San Francisco, CA May 31-June 3, 2023. 
  2. D. Lin, W. Jia, A. Majumder & R. Menon, “Machine-learning-assisted inverse design for large FOV dual-layer multi-level diffractive lens,” CLEO San Jose May 7-12, 2023.
  3. R. Menon, “Non-anthropocentric Imaging with & without optics,” Stanford SCIEN Colloqium, May 10, 2023 (invited).
  4. L. Sieburth, et al.,”Novel in-vivo visualization of bioenergy metabolic and cellular phenotypes in living woody tissues,” 2023 Biomolecular Characterization and Imaging Sciences Program (BCIS)Annual PI Meeting, Bethesda MD, April 17 – 19, 2023.
  5. R. Menon, “Enabling nano manufacturing with light,” Center for Additive Manufacturing & Design Innovation Seminar, University of Texas at Austin, April 3, 2023 (invited).

2022

  1. W. Jia, R. Menon & B. Sensale-Rodrguez, “Reconfigurable and programmable optical devices with phase change materials Sb2S3 and Sb2Se3,” SPIE Nanoscience + Engineering, San Diego CA August 21-25, 2022.
  2. R. Menon, “Non-anthropocentric Imaging with & without optics, ICCP 2022, Caltech Pasadena CA, August 3, 2022 (invited).
  3. A. Majumdar, MIT MeepCon, July 28 2022.
  4. R. Guo & R. Menon, “Computational cannula-based microscopy for brain imaging,” Optics COSI, July 11 – 15, 2022.
  5. R. Menon, “Flat optics & other multi-functional photonics”, Tampere University Plenoptima Meeting, Tampere Finland, June 16, 2022 (invited).
  6. R. Menon, “Machine perception via diffractive optics”, Optica CLEO, San Jose CA, May 17, 2022 (invited).
  7. R. Menon, “Resurgence of diffractive optics in imaging, sensing & inferencing”, SPIE Photonics West, San Francisco CA, Jan 25, 2022 (invited).
  8. M. Yessenov, et al., “Achieving arbitrary OAM profiles using 3D ST wave packets”, SPIE Photonics West, San Francisco CA, Jan 25, 2022.

2021

  1. R. Menon, “Non-anthropocentric computational imaging,” IEEE Photonics Conference, October 2021 (invited).
  2. R. Menon, “Reducing weight of imaging systems with flat optics,” AMOS Conference, Maui HI September 2021 (invited).
  3. S. Nelson and R. Menon, “Optics-free Image Classification with Deep Neural Networks,” OSA COSI, July 2021.
  4. R. Menon, “Reducing weight of imaging systems with flat optics,” HRL Colloqium July 8 (invited).
  5. R. Menon, “Versatile diffractive flat optics,” OSSC Webinar June 9 (invited).
  6. R. Menon, “Going beyond refractive lenses with microstructured flat optics.” NanoPOM Online Conference June 2021 (invited).
  7. M. Meem, A. Majumder, S. Banerji, B. Sensale-Rodriguez, and R. Menon, “Achromatic broadband visible imaging with a 10cm flat lens,” CLEO May 2021.
  8. M. Meem, A. Majumder, S. Banerji, B. Sensale-Rodriguez, and R. Menon, “Xenos peckii’s Compound Eye Structure Inspired Flat Microlens Array for Super-resolution Imaging,” CLEO May 2021.
  9. M. Meem, A. Majumder, S. Banerji, B. Sensale-Rodriguez, and R. Menon, “Free-form Broadband Flat Lens for F-Number and Numerical Aperture Decoupling,” CLEO May 2021.
  10. A. Majumder, M. Meem, F. G. del Cueto, C. B. Reddy, F. Guevara Vasquez & R. Menon, “Full-frame snapshot hyperspectral imaging for biomedical applications enabled by diffractive optics and computational reconstruction,” OSA Biophotonics Congress: Optics in the life sciences, April 14, 2021.

2020

  1. R. Menon, “2.5D Photonics as engines of information manipulation”, MRS Fall Meeting, 11/2021. (invited).
  2. S. Banerji, A. Hamrick, A. Majumder, B. Rodriguez & R. Menon, “Designing Ultra-Compact Silicon T-junctions using Machine Learning,” CLEO, San Jose CA, May 14, 2020 (poster).
  3. S. Banerji, M. Meem, A. Majumder, C. Dvonch, B. Rodriguez & R. Menon, “Large-Area Ultra-Broadband Achromatic Flat Lens for Imaging in the SWIR,” CLEO, San Jose CA, May 11, 2020.
  4. S. Banerji, M. Meem, A. Majumder, B. Rodriguez, & R. Menon, “Single Flat lens enables Extreme Depth of Focus Imaging,” CLEO, San Jose CA, May 11, 2020.
  5. S. Banerji, M. Meem, A. Majumder, B. Rodriguez & R. Menon, “Imaging across an Unlimited Bandwidth: is it possible?” CLEO, San Jose CA, May 11, 2020.
  6. S. Banerji, M. Meem, A. Majumder, F. Vasquez, B. Rodriguez & R. Menon, “Ultra-thin Near-infrared Camera via Single Flat lens for Wide-angle Imaging,” CLEO, San Jose CA, May 9, 2020.
  7. R. Menon, “Non-anthropocentric imaging via sensors and algorithms,” SPIE Defense + Commercial Sensing, Anaheim, CA April 28, 2020 (invited).
  8. M. Meem, A. Majumder & R. Menon, “Ultra-flat micro- & nano-optical security features,” Optical Document Security, San Francisco CA, January 29, 2020 (invited).

2019

  1. S. Banerji, M. Meem, A. Majumder, B. Sensale-Rodriguez and R. Menon, “Imaging with ultra-lightweight flat lenses: visible near-IR to long-wave IR,” SPIE Optics & Photonics, San Diego CA, August 14, 2019.
  2. R. Menon, “See-through Lensless Cameras to Deep-Brain Microscopy: Exploring the fruits of computational imaging,” OSA Computational Optical Sensing & Imaging (COSI), Munich Germany, June 24, 2019 (invited).
  3. S. Banerji, M. Meem, B. S. Rodriguez and R. Menon, “Metalenses or diffractive lenses for imaging?,” OSA Imaging Systems and Applications, Munich Germany, June 24, 2019.
  4. S. Banerji, M. Meem, A. Majumder, B. S. Rodriguez and R. Menon, “Achromatic Broadband Diffractive Lenses for Focusing and Imaging in LWIR,” OSA Imaging Systems and Applications, Munich Germany, June 25, 2019 (poster).
  5. R. Menon, “The Potential for computational imaging: from lensless cameras to deep-brain microscopy,” Photonics Media Webinar, June 11, 2019.
  6. B. Bhaduri, et al.,”Extended Propagation of Broadband Space-Time Wave Packets for 70 m,” CLEO, San Jose, May 8, 2019.
  7. M. Meem, S. Banerji, A. Majumder, B. Sensale-Rodriguez and R. Menon, “Flat Lenses for Ultra-lightweight Longwave-Infrared Broadband Imaging,” CLEO, San Jose, May 8, 2019.
  8. M. Meem, A. Majumder and R. Menon, “Full-color, multi-plane image projection with mobile-phone flashlight & a multi-level diffractive hologram,” CLEO, San Jose, May 10, 2019.
  9. A. Majumder, S. Banerji, K. Miyagawa, M. Meem, M. Mondol, B. Sensale-Rodriguez and R. Menon, “Programmable metamaterials & metasurfaces for ultra- compact multi-functional photonics,” CLEO, San Jose, May 6, 2019.
  10. B. Rodriguez, Z. Pan, R. Guo, N. Nagarajan, M. R. Capecchi, K. Jenks, J. Sheperd and R. Menon, “Computation-enabled Lensless Imaging & Deep-Brain Microscopy,” CLEO, San Jose, May 6, 2019.
  11. R. Menon, “Computationally-optimized Ultra-compact Nanophotonics,” OFC 2019 San Diego CA March 5, 2019 (invited).
  12. R. Menon, “Computation & Nanofabrication to enable novel Photonics & Optics,” National Photonics Symposium (NPS) – 2019, International School of Photonics, Cochin University of Science & Technology, Kerala India, February 27, 2019 (keynote).

2018

  1. R. Menon, “What’s Next for Cameras: Flat-lens, Lens-less and Beyond,” Fireside chat at Visual 1st Mobile Photo Connect, San Francisco CA October 22, 2018 (invited).
  2. R. Menon, “Metamaterial films for in-space propulsion by radiation pressure,” OSA Incubator Meeting, Washington DC, October 8, 2018 (invited).
  3. S. Banerji, M. Meem, A. Chanana, A. Nahata, R. Menon and B. Sensale-Rodriguez, “From Visible to THz: Planar Optics for High-Precision, Energy-Efficient Laser Applications,”  São Paulo School of Advanced Science (SPSAS) + XVI Jorge André Swieca School on Non linear and Quantum Optics, Sao Paulo, Brazil (2018) [Best student poster award]
  4. R. Menon, “Computational cannula microscopy: utilizing a single glass needle for imaging,” OSA COSI, Orlando FL, June 27, 2018.
  5. R. Menon, “Ultra-compact, multi-functional photonics via nanofabrication & computation,” Physics Dept. Seminar, University of Wisconsin-Madison, WI May 30, 2018 (invited). 
  6. R. Menon, “Full-color transmissive holograms verifiable by any mobile phone,” The BankNotes conference, Dallas TX May 21-24, 2018 (invited). 
  7. R. Menon, “Ultra-compact, multi-functional photonics via nanofabrication & computation,” Royal Melbourne Institute of Technology Seminar, Melbourne Australia Feb. 9, 2018 (invited). 

2017

  1. R. Menon, “Combining machine learning, computation & micro-optics to enable reduced SWAP multi-spectral imaging systems,” SPIE Mirror Technology Workshop, Redondo Beach, CA Nov. 15, 2017 (invited). 
  2. R. Menon, “New realms in optics and photonics via nanofabrication and computation,” Annual meeting of the Brazilian Physical Society, Búzios, Brazil Aug. 31, 2017 (invited). 
  3. R. Menon, “Computational hyperspectral imaging using diffractive phase masks,” ONR Annual Review, Washington DC. Aug. 8, 2017 (invited). 
  4. R. Menon, “Engineering Nanostructures for Ultra-compact, Multi-functional Integrated Photonics,” OSA Advanced Photonics Congress, New Orleans LA July 25, 2017 (invited).
  5. R. Menon, “New realms in optics & photonics via nanofabrication & computation,” Seminar Technical University of Denmark (DTU), Copenhagen Denmark, July 14, 2017.
  6. R. Menon, “Going beyond the diffraction limit in nanopatterning using photochromic molecules,” ERPOS 2017, St. Andrews Scotland July 12, 2017 (invited).
  7. G. Kim, et. al., “Computational Cannula Microscopy: Fluorescence imaging through ultra-thin glass needle,” OSA IS, San Francisco CA June 31, 2017.
  8. X. Wan, M. Mohammad, M. Meem and R.Menon, “High-NA Chromatic-aberration-corrected Diffractive Lens for Broadband Focusing,” OSA IS, San Francisco CA June 30, 2017.
  9. G. Kim, K. Isaacson, R. Palmer and R.Menon, “Ultra-thin lensless camera using a bare sensor and computational techniques,” OSA COSI, San Francisco CA June 29, 2017.
  10. A. Majumder, B. Shen, R. C. Polson and R.Menon, “Ultra-compact Nanophotonic Devices designed by Computational Metamaterials,” OSA IS, San Francisco CA June 28, 2017.
  11. R. Menon, “Diffractive optics for novel optical systems,” Intel Technical Seminar, Santa Clara, CA May 15, 2017 (invited).
  12. A. Majumder, B. Shen, R. C. Polson and R.Menon, “Passive and Active Light Control using Computational Metamaterials,” CLEO 2017, San Jose CA May 19, 2017.
  13. G. Kim, et. al., “Deep-tissue fluorescent imaging via computational-cannula microscopy,” OSA Optics and the Brain, San Diego, CA, April 2, 2017.
  14. G. Kim, et. al., “Computational-cannula microscopy for brain imaging,” Mayo clinic symposium on the Brain Initiative, Rochester, MN, March 31, 2017.
  15. R. Menon, “Computational-cannula microscopy for simple, fast, inexpensive imaging of the deep brain,” The University of Utah Brain Initiative Symposium, March 3, 2017 (invited).

2016

  1. R. Menon, “New realms in optics & photonics enabled by fabrication and computation,” Stanford University Applied Physics Optics & Electronics Seminar, Stanford CA, Nov. 14, 2016 (invited).
  2. R. Menon, “Digital metamaterials and micro-optics for photonics and imaging,” International Microphotonics Congress Expo, Berlin, Germany, Oct. 11, 2016 (plenary, invited).
  3. G. Kim, K. Isaacson, J. Parker and R. Menon, “Lensless camera using a bare CMOS sensor and computational techniques,” USTAR Confluence, Salt Lake City, UT, Oct. 4, 2016.
  4. S. Alkilani, H. Grayson, A. Majumder and R. Menon, ” 3D Micro and Macrolithography using diffractive phase masks,” USTAR Confluence, Salt Lake City, UT, Oct. 4, 2016.
  5. R. Menon, “Digital metamaterials and micro-optics for photonics and imaging,” University of Utah College of Engineering Seminar, Sept. 19, 2016 (invited).
  6. A. Majumder, X. Wan, B.J. Pollock, T.L. Andrew and R. Menon, “Modelling the Performance of Photochromic Thin Films to Achieve Super-resolution Nanopatterning by Absorbance Modulation at Low Light Intensity,” OSA IS, Heidelberg, Germany, July 25, 2016.
  7. P. Wang, E. Shafran, F.G. Vasquez , and R. Menon, “Snapshot High-resolution Hyper-spectral Imager based on an Ultra-thin Diffractive Filter,”  OSA IS, Heidelberg, Germany, July 27, 2016.
  8. P. Wang and R. Menon, “Computational Single-shot Hyper-spectral Imaging based on a Microstructured Diffractive Optic,” CLEO, San Jose, CA  June 2016.

2015

  1. G. Kim, N. Nagarajan, E. Pastuzyn, J. Shepherd, E. M. Jorgensen and R. Menon, “Computational cannula microscope for deep tissue in vivo neural imaging,” the Brain Initiative Investigators Meeting, Washington DC, Dec. 10-11, 2015 (invited).
  2. R. Menon, “Computational-cannula microscopy for brain imaging,” the 2nd Israeli Biophotonics Conference, Tel Aviv, Israel Dec 1-2, 2015 (invited).
  3. P. Wang, N. Mohammad, M. Schulz and R. Menon, “Ultra-high efficiency photovoltaics via diffractive optics,” OSA PV Topical Meeting, Suzhou China Nov. 3, 2016 (invited).
  4. P. Wang and R. Menon, “Computational color imaging with enhanced light sensitivity based on a microstructured diffractive element array,” OSA Imaging Systems & Applied Optics, Arlington, VA, June 10, 2015.
  5. A. Meiri, C. G. Ebeling, J. Martineau,  Z. Zalevsky, J. M. Gerton, and R. Menon, “Self-Interference of Coherent and Incoherent Signals for Sub-Nanometer Localization of Single Emitters,” OSA Imaging Systems & Applied Optics, Arlington, VA, June 10, 2015.
  6. P. Cantu, T. L. Andrew and R. Menon, “Nanopatterning via optical saturable transitions,” OSA Imaging Systems & Applied Optics, Arlington, VA, June 10, 2015.
  7. A. Majumder, F. Masid, B. Pollock, T. L. Andrew and R. Menon, “Super-resolution optical lithography via barrier-free absorbance modulation & separable-substrate technique,” OSA Imaging Systems & Applied Optics, Arlington, VA, June 10, 2015.
  8. G. Kim, N. Nagarajan, A. Meiri, S. Merrill, M. Capecchi, E. M. Jorgensen and R. Menon, “A cannula-based computational fluorescence microscope,” OSA Imaging Systems & Applied Optics, Arlington, VA, June 9, 2015.
  9. J. A. Dominguez-Caballero, J. R. Nagel, A. Takagi, K. Parikh, N. Mohammad, N. Economou, E. Ramos-Murillo and R. Menon, “Diffractive color-splitter for high-efficiency liquid-crystal displays,” DisplayWeek 2015, San Jose, CA, March 31-June5, 2015. (poster).
  10. R. Menon, “Digital metamaterials & micro-optics for photonics & imaging,” EIPBN, San Diego, CA, May 28, 2015 (invited).
  11. P. Cantu, T. L. Andrew and R. Menon, “Subwavelength nanopatterning via selective dissolution of one photo isomer,” EIPBN, San Diego, CA, May 28, 2015 (poster).
  12. G. Kim, N. Nagarajan, A. Meiri, S. Merrill, M. Capecchi, E. M. Jorgensen and R. Menon, “Computational fluorescence microscopy through a glass needle,” EIPBN, San Diego, CA, May 29, 2015.
  13. A. Majumder, F. Masid, B. Pollock, T. L. Andrew and R. Menon, “Super-resolution optical lithography using two approaches of Absorbance Modulation,” EIPBN, San Diego, CA, May 27, 2015. (poster).
  14. N. Mohammad, P. Wang, D. J. Friedman, K. Ramanathan, L. Mansfield and R. Menon, “Microphotonic spectrum-splitting and concentration for high-efficiency photovoltaics,”  CLEO, San Jose, CA, May 12, 2015.
  15. G. Kim, N. Nagarajan, A. Meiri, S. Merrill, M. Capecchi, E. M. Jorgensen and R. Menon, “A cannula-based computational fluorescence microscope for neuronal imaging,” CLEO, San Jose, CA, May 12, 2015.
  16. B. Shen, P. Wang, R. C. Polson and R. Menon, “Efficiency and ultra-compact computational metamaterials for integrated photonics and free-space applications,” CLEO, San Jose, CA, May 12, 2015. (poster).
  17. A. Majumder, F. Masid, B. Pollock, T. L. Andrew and R. Menon, “Super-resolution optical nanolithography: Beyond the far-field diffraction limit,” CLEO, San Jose, CA, May 14, 2015.
  18. A. Meiri, C. G. Ebeling, J. Martineau, O. A. Osunbayo, Z. Zalevsky, J. M. Gerton, M. Vershinin and R. Menon, “Improvement in in-plane localization precision of nanoparticle using interference analysis,” CLEO, San Jose, CA, May 13, 2015 (poster).
  19. G. Kim, N. Nagarajan and R. Menon, “Fluorescence microscope in a needle,”  OSA Novel techniques in microscopy (NTM), Vancouver, BC, April 15, 2015.
  20. A. Meiri, C. G. Ebeling, J. Martineau,  Z. Zalevsky, J. M. Gerton,  and R. Menon, “Sub-nanometer particle tracking by point-spread function spatial modulation,” OSA Novel techniques in microscopy (NTM), Vancouver, BC, April 15, 2015.
  21. R. Menon, “Digital metamaterials & micro-optics for photonics and imaging,” Tech Talk at 3M, Minneapolis, MN, March 11, 2015 (invited).
  22. A. Meiri, C. G. Ebeling, J. Martineau, E. M. Jorgensen,  Z. Zalevsky, J. M. Gerton,  and R. Menon, “Sub-nanometer localization precision of nanoparticles by point-spread function spatial modulation,” the 5th OASIS International conference on optics & electro-optics, Tel Aviv, Israel, March 3-4, 2015 (poster).
  23. R. Menon, “Hyper- and multi-spectral imaging using computation and low-cost planar micro-optics,” NASA Langley Technical seminar, Hampton, VA February 13, 2015 (invited).

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