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Department of Physics and Technology krishna.agarwal@uit.no +4777645157 Tromsø TEK 2.055

Agarwal, Krishna


Associate Professor / Ultrasound, Microwaves and Optics


  • Kumar, Prakhar; Yadav, Nitin; Shamsuzzaman, Muhammad; Agarwal, Krishna; Melandsø, Frank; Habib, Anowarul. Numerical method for tilt compensation in scanning acoustic microscopy. Measurement (London) 2022; Volum 187 (110306). ISSN 0263-2241.s doi: 10.1016/j.measurement.2021.110306.
  • Villegas, Luis; Dubey, Vishesh Kumar; Nystad, Mona; Tinguely, Jean-Claude; Coucheron, David Andre; Dullo, Firehun Tsige; Priyadarshi, Anish; Acuna Maldonado, Sebastian Andres; Ahmad, Azeem; Mateos, Jose M.; Barmettler, Gery; Ziegler, Urs; Birgisdottir, Åsa Birna; Hovd, Aud-Malin Karlsson; Fenton, Kristin Andreassen; Acharya, Ganesh; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Chip-based multimodal super-resolution microscopy for histological investigations of cryopreserved tissue sections. Light: Science & Applications (LSA) 2022. ISSN 2095-5545.s doi: 10.1038/s41377-022-00731-w.
  • Opstad, Ida Sundvor; Godtliebsen, Gustav; Ströhl, Florian; Myrmel, Truls; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Birgisdottir, Åsa birna. Three-dimensional structured illumination microscopy data of mitochondria and lysosomes in cardiomyoblasts under normal and galactose-adapted conditions. Scientific Data 2022; Volum 9 (1). ISSN 2052-4463.s doi: 10.1038/s41597-022-01207-7.
  • Jadhav, Suyog; Acuña Maldonado, Sebastian Andres; Opstad, Ida Sundvor; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.. Artefact removal in ground truth deficient fluctuations-based nanoscopy images using deep learning. Biomedical Optics Express 2021; Volum 12 (1). ISSN 2156-7085.s 191 - 210.s doi: 10.1364/BOE.410617.
  • Acuna Maldonado, Sebastian Andres; ROY, MAYANK; Villegas, Luis; Dubey, Vishesh Kumar; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Deriving high contrast fluorescence microscopy images through low contrast noisy image stacks. Biomedical Optics Express 2021; Volum 12 (9). ISSN 2156-7085.s 5529 - 5543.s doi: 10.1364/BOE.422747.
  • Butola, Ankit; Coucheron, David Andre; Szafranska, Karolina; Ahmad, Azeem; Mao, Hong; Tinguely, Jean-Claude; McCourt, Peter Anthony; Paramasivam, Senthilkumaran; Mehta, Dalip Singh; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Multimodal on-chip nanoscopy and quantitative phase imaging reveals the nanoscale morphology of liver sinusoidal endothelial cells. (fulltekst) Proceedings of the National Academy of Sciences of the United States of America 2021; Volum 118 (47). ISSN 0027-8424.s doi: 10.1073/pnas.2115323118.
  • Somani, Ayush; Sekh, Arif Ahmed; Opstad, Ida Sundvor; Birgisdottir, Åsa Birna; Myrmel, Truls; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.; Horsch, Alexander. Digital Staining of Mitochondria in Label-free Live-cell Microscopy. Springer 2021 ISBN 0000000000. ISSN 1431-472X.s doi: 10.1007/978-3-658-33198-6_55.
  • Sekh, Arif Ahmed; Opstad, Ida Sundvor; Godtliebsen, Gustav; Birgisdottir, Åsa Birna; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.. Physics-based machine learning for subcellular segmentation in living cells. Nature Machine Intelligence 2021.s 1 - 12.s doi: 10.1038/s42256-021-00420-0.
  • Villegas, Luis; Dubey, Vishesh Kumar; Tinguely, Jean-Claude; Coucheron, David Andre; Priyadarshi, Anish; Acuña Maldonado, Sebastian Andres; Agarwal, Krishna; Mateos, Jose M; Nystad, Mona; Hovd, Aud-Malin Karlsson; Fenton, Kristin Andreassen; Ahluwalia, Balpreet Singh. Photonic-chip: a multimodal imaging tool for histopathology.. Journal of the Optical Society of America. B, Optical physics 2021. ISSN 0740-3224.s doi: 10.1364/NTM.2021.NW3C.3.
  • Opstad, Ida Sundvor; Godtliebsen, Gustav; Ahluwalia, Balpreet Singh; Myrmel, Truls; Agarwal, Krishna; Birgisdottir, Åsa birna. Mitochondrial dynamics and quantification of mitochondria-derived vesicles in cardiomyoblasts using structured illumination microscopy. Journal of Biophotonics 2021. ISSN 1864-063X.s doi: 10.1002/jbio.202100305.
  • Samanta, Krishnendu; Sarkar, Swagato; Acuna Maldonado, Sebastian Andres; Joseph, Joby; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Blind Super-Resolution Approach for Exploiting Illumination Variety in Optical-Lattice Illumination Microscopy. ACS Photonics 2021; Volum 8. ISSN 2330-4022.s 2626 - 2634.s doi: 10.1021/acsphotonics.1c00503.
  • Opstad, Ida Sundvor; Hansen, Daniel Henry; Acuña Maldonado, Sebastian Andres; Ströhl, Florian; Priyadarshi, Anish; Tinguely, Jean-Claude; Dullo, Firehun Tsige; Dalmo, Roy Ambli; Seternes, Tore; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Fluorescence fluctuation-based super-resolution microscopy using multimodal waveguided illumination. Optics Express 2021; Volum 29 (15). ISSN 1094-4087.s 23368 - 23380.s doi: 10.1364/OE.423809.
  • Do, Quan; Acuña Maldonado, Sebastian Andres; Kristiansen, Jon Ivar; Agarwal, Krishna; Ha, Hoai Phuong. Highly Efficient and Scalable Framework for High-Speed Super-Resolution Microscopy. IEEE Access 2021; Volum 9. ISSN 2169-3536.s 97053 - 97067.s doi: 10.1109/ACCESS.2021.3094840.
  • Sekh, Arif Ahmed; Opstad, Ida Sundvor; Birgisdottir, Åsa Birna; Myrmel, Truls; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.. Learning nanoscale motion patterns of vesicles in living cells. IEEE 2020 (2020) ISBN 978-1-7281-9360-1. ISSN 2160-7508.s doi: 10.1109/CVPR42600.2020.01403.
  • Acuña Maldonado, Sebastian Andres; Ströhl, Florian; Opstad, Ida Sundvor; Ahluwalia, Balpreet Singh; Agarwal, Krishna. MusiJ: an ImageJ plugin for video nanoscopy. Biomedical Optics Express 2020; Volum 11 (5). ISSN 2156-7085.s 2548 - 2559.s doi: 10.1364/BOE.382735.
  • Zhang, Lu; Xu, Kuiwen; Zhong, Yu; Agarwal, Krishna. Solving Phaseless Highly Nonlinear Inverse Scattering Problems With Contraction Integral Equation for Inversion. IEEE Transactions on Computational Imaging 2020; Volum 6. ISSN 2333-9403.s 1106 - 1116.s doi: 10.1109/TCI.2020.3006728.
  • Acuña Maldonado, Sebastian Andres; Opstad, Ida Sundvor; Godtliebsen, Fred; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Soft thresholding schemes for multiple signal classification algorithm. Optics Express 2020; Volum 28 (23). ISSN 1094-4087.s 34434 - 34449.s doi: 10.1364/OE.409363.
  • Liu, Zicheng; Agarwal, Krishna. Silicon substrate significantly alters dipole-dipole resolution in coherent microscope. Optics Express 2020; Volum 28 (26). ISSN 1094-4087.s 39713 - 39726.s doi: 10.1364/OE.409629.
  • Jayakumar, Nikhil; Helle, Øystein I.; Agarwal, Krishna; Ahluwalia, Balpreet Singh. On-chip TIRF nanoscopy by applying Haar wavelet kernel analysis on intensity fluctuations induced by chip illumination. Optics Express 2020; Volum 28 (24). ISSN 1094-4087.s 35454 - 35468.s doi: 10.1364/OE.403804.
  • Ströhl, Florian; Jadhav, Suyog; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.. Object detection neural network improves Fourier ptychography reconstruction. Optics Express 2020; Volum 28 (25). ISSN 1094-4087.s 37199 - 37208.s doi: 10.1364/OE.409679.
  • Ye, Xiuzhu; Zhang, Naixin; Xu, Kuiwen; Agarwal, Krishna; Bai, Ming; Liu, Dawei; Chen, Xudong. Application of Subspace-Based Distorted-Born Iteration Method in Imaging Biaxial Anisotropic Scatterer. IEEE Transactions on Computational Imaging 2020; Volum 6. ISSN 2333-9403.s 1486 - 1492.s doi: 10.1109/TCI.2020.3032673.
  • Samanta, Krishnendu; Joseph, Joby; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Study of electric fields of diffraction from spatial light modulator: Discussion. Optical Society of America. Journal A: Optics, Image Science, and Vision (JOSA A) 2019; Volum 36 (10). ISSN 1084-7529.s 1778 - 1786.s doi: 10.1364/JOSAA.36.001778.
  • Tripathi, Gaurav; Habib, Anowarul; Agarwal, Krishna; Prasad, Dilip K.. Classification of Micro-Damage in Piezoelectric Ceramics Using Machine Learning of Ultrasound Signals. Sensors 2019; Volum 19 (19). ISSN 1424-8220.s doi: 10.3390/s19194216.
  • Opstad, Ida Sundvor; Ströhl, Florian; Birgisdottir, Åsa birna; Maldonado, Sebastián Andrés Acuña; Kalstad, Trine; Myrmel, Truls; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Adaptive fluctuation imaging captures rapid subcellular dynamics. Proceedings of SPIE, the International Society for Optical Engineering 2019; Volum 11076. ISSN 0277-786X.s doi: 10.1117/12.2526846.
  • Agarwal, Krishna; MacHan, Radek; Prasad, Dilip Kumar. Non-heuristic automatic techniques for overcoming low signal-to-noise-ratio bias of localization microscopy and multiple signal classification algorithm. Scientific Reports 2018; Volum 8 (1). ISSN 2045-2322.s doi: 10.1038/s41598-018-23374-7.
  • Agarwal, Krishna; Prasad, Dilip Kumar. Eigen-analysis reveals components supporting super-resolution imaging of blinking fluorophores. Scientific Reports 2017; Volum 7 (1). ISSN 2045-2322.s doi: 10.1038/s41598-017-04544-5.
  • Villegas, Luis; Dubey, Vishesh Kumar; Nystad, Mona; Fenton, Kristin Andreassen; Acharya, Ganesh; Mateos, Jose M.; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Chip-based multimodal microscopy for histological investigations of cryopreserved tissue sections. Physics Seminar 2022-02-24 - 2022-02-24 2022.
  • Opstad, Ida Sundvor; Wolfson, Deanna; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Seternes, Tore; Dalmo, Roy Ambli. Diving into fish skin: understanding cell avalanches and migrating keratocytes. Focus on Microscopy 2022-04-10 - 2022-04-13 2022.
  • Opstad, Ida Sundvor; Hansen, Daniel Henry; Acuna Maldonado, Sebastian Andres; Ströhl, Florian; Priyadarshi, Anish; Tinguely, Jean-Claude; Dullo, Firehun Tsige; Seternes, Tore; Dalmo, Roy Ambli; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Large area super-resolution TIRFM of arctic fish species. Focus on Microscopy 2022 2022-04-10 - 2022-04-13 2022.
  • Opstad, Ida Sundvor; Godtliebsen, Gustav; Ahluwalia, Balpreet Singh; Myrmel, Truls; Agarwal, Krishna; Birgisdottir, Åsa birna. Mitochondrial dynamics and quantification of mitochondria-derived vesicles (MDVs) in cardiomyoblasts using 3DSIM. Focus on Microscopy 2022 2022-04-10 - 2022-04-13 2022.
  • Bhardwaj, Shivani; Agarwal, Krishna; Ahluwalia, Balpreet Singh. 2021 INTPART WINTER WORKSHOP ON "Microscopy, Bioimaging and Artificial Intelligence". 2021.
  • Agarwal, Krishna. Welcome to Arctic Optica Student Chapter and ongoing image contest. digitallifenorway.org 2021.
  • Agarwal, Krishna; Opstad, Ida Sundvor. PhD defence: Bringing optical nanoscopy to life – Super-resolution microscopy of living cells. digitallifenorway.org 2021.
  • Agarwal, Krishna. New publication: Myth-bursting work on microscopy. digitallifenorway.org 2021.
  • Agarwal, Krishna; Vanderpoorten, Oliver. ”How to catch a cold” – Nanofluidic chips for trapping of biological nanoparticles. digitallifenorway.org 2021.
  • Agarwal, Krishna; Acuña Maldona, Sebastian Andres. New publication: Use of deep learning to improve quality of nanoscopy images. digitallifenorway.org 2021.
  • Agarwal, Krishna; Acuña Maldona, Sebastian Andres. New publication: New chip-based microscopy technique enables super-resolution images over large areas to be captured of salmon skin cells. digitallifenorway.org 2021.
  • Agarwal, Krishna; Opstad, Ida Sundvor. New publication: New chip-based microscopy technique enables super-resolution images over large areas to be captured of salmon skin cells. digitallifenorway.org 2021.
  • Agarwal, Krishna; Acuña Maldona, Sebastian Andres. Super-resolution with lattice illumination. digitallifenorway.org 2021.
  • Agarwal, Krishna; Opstad, Ida Sundvor. Dataset publication: fluorescence imaging of salmon skin cells illuminated by multimodal waveguide chip. digitallifenorway.org 2021.
  • Dubey, Vishesh Kumar; Villegas Hernández, Luis Enrique; Tinguely, Jean-Claude; Coucheron, David Andre; Priyadarshi, Anish; Acuña, Sebastian; Agarwal, Krishna; Mateos, Jose M; Nystad, Mona; Hovd, Aud-Malin Karlsson; Fenton, Kristin Andreassen; Ahluwalia, Balpreet Singh. Multimodal super-resolution imaging for histopathology applications. SCANDEM2021 The 71st Annual meeting of the Nordic Microscopy Society 2021-06-17 - 2021-06-17 2021.
  • Dubey, Vishesh Kumar; Villegas Hernández, Luis Enrique; Nystad, Mona; Tinguely, Jean-Claude; Coucheron, David Andre; Dullo, Firehun Tsige; Priyadarshi, Anish; Acuña, Sebastian; Ahmad, Azeem; Mateos, Jose M; Barmettler, Gery; Ziegler, Urs; Birgisdottir, Åsa birna; Hovd, Aud-Malin Karlsson; Fenton, Kristin Andreassen; Acharya, Ganesh; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Photonic-chip for multimodal super-resolution imaging in histopathology applications. 2021 INTPART WINTER WORKSHOP ON “Microscopy, Bioimaging and Artificial Intelligence” 2021-12-20 - 2021-12-21 2021.
  • Jayakumar, Nikhil; Dullo, Firehun Tsige; Dubey, Vishesh Kumar; Ahmad, Azeem; Cauzzo, Jennifer; Mazagao Guerreiro, Eduarda; Snir, Omri; Skalko-Basnet, Natasa; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Label-free imaging on waveguide platform with enhanced resolution and contrast. 2021 INTPART WINTER WORKSHOP ON “Microscopy, Bioimaging and Artificial Intelligence” 2021-12-20 - 2021-12-21 2021.
  • Acuña Maldonado, Sebastian Andres; Agarwal, Krishna. Autothresholding in MUSICAL using non-orthogonal signal-noise separation. URSI GASS 2021 2021-08-28 - 2021-09-04 2021.
  • Opstad, Ida Sundvor; Hansen, Daniel Henry; Svartaas, Ole Kristian; Kjølstad, Eskil Mossige; Wolfson, Deanna; Agarwal, Krishna; Ströhl, Florian; Seternes, Tore; Dalmo, Roy Ambli; Ahluwalia, Balpreet Singh. A CHIP-BASED IMAGING SYSTEM FOR FAST-CRAWLING SKIN CELLS OF ATLANTIC SALMON –A COOL SURFACE LAYER INVESTIGATION. Next generation live-cell microscopy 2020-02-11 - 2020.
  • Acuña Maldonado, Sebastian Andres; Ströhl, Florian; Ahluwalia, Balpreet Singh; Opstad, Ida Sundvor; Agarwal, Krishna. MUSICAL – An imageJ tool for fluorescence nanoscopy of living cells. Next-generation live-cell microscopy 2020-02-17 - 2020-02-19 2020.
  • Sekh, Arif Ahmed; Opstad, Ida Sundvor; Birgisdottir, Åsa B.; Myrmel, Truls; Ahluwalia, Balpreet Singh; Agarwal, Krishna; Prasad, Dilip K.. Learning Nanoscale Motion Patterns of Vesicles in Living Cells. Conference on Computer Vision and Pattern Recognition (CVPR) 2020-06-14 - 2020-06-19 2020.
  • Sekh, Arif Ahmed; Agarwal, Krishna; Prasad, Dilip K.. Data-intelligence for microscopy data. Next-generation live-cell microscopy workshop 2020-02-17 - 2020-02-19 2020.
  • Acuña Maldonado, Sebastian Andres; Jayakumar, Nikhil; Liu, Zicheng; Agarwal, Krishna; Wolfson, Deanna. nanoRIP. 2020.
  • Agarwal, Krishna. nanoRIP. Annual Report 2019.s 3 - 91.
  • Maharwar, Harshit; Agarwal, Krishna; Prasad, Dilip K.; Melandsø, Frank; Habib, Anowarul. Subsurface defect imaging in PZT ceramics using dual point contact excitation and detection. USE2019 2019-11-25 - 2019-11-27 2019.
  • Acuña Maldonado, Sebastian Andres; Hussain, G M A Mehedi; Godtliebsen, Fred; Ahluwalia, Balpreet Singh; Ha, Hoai Phuong; Prasad, Dilip K.; Agarwal, Krishna. Multiple Signal Classiflcation: Challenges on the Route from Millimeter Resolution to Nanometer Resolution. PIERS2019 in Rome 2019-06-17 - 2019-06-20 2019.
  • Acuña Maldonado, Sebastian Andres; Opstad, Ida Sundvor; Villegas Hernandez, Luis Enrique; Nystad, Mona; Aguilera, Milton O; Storflor, Merete; Øie, Cristina Ionica; Abel, Sören; Birgisdottir, Åsa birna; Kalstad, Trine; Wolfson, Deanna; Tinguely, Jean-Claude; Myrmel, Truls; McCourt, Peter Anthony; Johansen, Terje; Ahluwalia, Balpreet Singh; Agarwal, Krishna. Fluorescence Nanoscopy Using Multiple Signal Classiflcation Algorithm (MUSICAL): From Electromagnetics Inverse Scattering Problem to Optics Inverse Source Problem. PIERS2019 in Rome 2019-06-17 - 2019-06-20 2019.
  • Opstad, Ida Sundvor; Ströhl, Florian; Birgisdottir, Åsa birna; Maldonado, Sebastián Andrés Acuña; Kalstad, Trine; Myrmel, Truls; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Adaptive fluctuation imaging captures rapid subcellular dynamics. European Conferences on Biomedical Optics 2019-06-23 - 2019-06-27 2019.
  • Agarwal, Krishna; Opstad, Ida Sundvor; Tinguely, Jean-Claude; Abel, Sören; Kalstad, Trine; Birgisdottir, Åsa birna; Myrmel, Truls; Ahluwalia, Balpreet Singh. High-Speed, Multi-Color Live Cell Nanoscopy using MUSICAL. Focus on Microscopy 2018-03-25 - 2018-03-28 2018.
  • Helle, Øystein Ivar; Tinguely, Jean-Claude; Coucheron, David Andre; Dullo, Firehun Tsige; Øie, Cristina Ionica; Agarwal, Krishna; Ahluwalia, Balpreet Singh. Photonic chip-based multi-modality TIRF nanoscopy platform. Focus On Microscopy 2018-03-25 - 2018-03-28 2018.
  • Opstad, Ida Sundvor; Agarwal, Krishna; Popova, Daria Aleksandrovna; Acharya, Ganesh; Basnet, Purusotam; Ahluwalia, Balpreet Singh. Live-cell optical nanoscopy of human spermatozoa. Norwegian Electro-Optics Meeting 2018-04-02 - 2018-04-04 2018.
  • Agarwal, Krishna; Helle, Øystein Ivar; Dullo, Firehun Tsige; Tinguely, Jean-Claude; Ahluwalia, Balpreet Singh. LOW TOXICITY SUPER-RESOLUTION IMAGING AT HIGH TEMPORAL SPEED USING CHIP-BASED SPECKLE-MUSICAL SUITABLE FOR LIVE CELL IMAGING. Seeing is Believing 2017-10-04 - 2017-10-07 2017.
  • Agarwal, Krishna. Multiple Signal Classification: From Millimeter Resolution to Nanometer Resolution. Progress In Electromagnetics Research Symposium 2017-11-19 - 2017-11-22 2017.
  • Opstad, Ida Sundvor; Agarwal, Krishna; Abel, Sören; Ahluwalia, Balpreet Singh. Multi-color nanoscopy of live-cell processes in E. Coli bacteria using MUSICAL. Progress In Electromagnetics Research Symposium 2017-11-19 - 2017-11-22 2017.
  • Agarwal, Krishna; Ghosh, Biswajoy; Wolfson, Deanna; Øie, Cristina Ionica; Chatterjee, Jyotirmoy; Ahluwalia, Balpreet Singh. Computational nanoscopy using Multiple Signal Classification Algorithm (MUSICAL) for fluorescence imaging. Progress In Electromagnetics Research Symposium 2017-11-19 - 2017-11-22 2017.
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