Prof. Balpreet Singh Ahluwalia Profile

Prof. Balpreet Singh Ahluwalia

Professor at UiT The Arctic Univ of Norway

SPIE Involvement:

Conference Program Committee | Author | Leadership Workshop Facilitator

Publications (31)

Proceedings Article | 18 June 2024 Poster + Paper

Common-path off-axis differential interference contrast microscope for monitoring cell dynamics

Anuj Saxena, Azeem Ahmad, Vishesh Dubey, Hong Mao, Anand Kumar, Anowarul Habib, Satish Kumar Dubey, Balpreet Singh Ahluwalia, Dalip Singh Mehta

Proceedings Volume 12996, 129960T (2024) https://doi.org/10.1117/12.3017023

KEYWORDS: Digital image correlation, Microscopes, Red blood cells, Interferograms, Bacteria, Polarizers, Polarization, Biological samples, Biological imaging, Vacuum chambers

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Proceedings Article | 13 March 2024 Presentation

All-optical phase retrieval microscope designed using differentiable microscopy

Kithmini Herath, Udith Haputhanthri, Ramith Hettiarachchi, Hasindu Kariyawasam, Raja Ahmad, Azeem Ahmad, Balpreet Ahluwalia, Chamira U. Edussooriya, Dushan Wadduwage

Proceedings Volume PC12857, PC128570P (2024) https://doi.org/10.1117/12.3002933

KEYWORDS: Microscopy, Education and training, Optical design, Quantization, Fabrication, Tunable filters, Design and modelling, Imaging systems, Optical filters, Interferometry

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Proceedings Article | 12 March 2024 Presentation + Paper

Uncovering real-time interaction of polystyrene particles and cells from scales of Atlantic salmon by quantitative phase microscopy

M. Bilal Afzal, Azeem Ahmad, Dhivya Thiyagarajan, Deanna Wolfson, Balpreet Ahluwalia, Roy Dalmo

Proceedings Volume 12852, 1285208 (2024) https://doi.org/10.1117/12.3008503

KEYWORDS: Polystyrene, Particles, Microscopy, Skin, Plastics, Phase reconstruction, Interferograms, Biological imaging, Light sources

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Proceedings Article | 9 August 2023 Paper

Highly temporal phase stable common-path quantitative phase microscope

Anuj Saxena, Azeem Ahmad, Vishesh Dubey, Sathi Das, Anowarul Habib, Balpreet Singh Ahluwalia, Dalip Singh Mehta

Proceedings Volume 12630, 126300P (2023) https://doi.org/10.1117/12.2671032

KEYWORDS: Red blood cells, Microscopes, Interferograms, Phase measurement, Refractive index, Polystyrene, Polarizers, Microscopy, Tunable filters, Polarized light

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Proceedings Article | 17 March 2023 Poster + Paper

Effect of partial spatial coherence of light on quantitative phase microscopy of biological samples: improved spatial phase sensitivity, space-bandwidth product, and high accuracy in phase measurement

Dalip Singh Mehta, Shilpa Tayal, Azeem Ahmad, Sunil Bhatt, Vishesh Kumar Dubey, Ankit Butola, Balpreet Singh Ahluwalia

Proceedings Volume 12389, 123890L (2023) https://doi.org/10.1117/12.2651080

KEYWORDS: Light sources, Interferograms, Speckle, Single mode fibers, Phase measurement, Partial coherence, Microscopy, Physical coherence, Image resolution, Biological samples

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Proceedings Article | 17 March 2023 Poster + Paper

Rapid identification of antimicrobial drug resistance strains of E-coli using SERS nanowire chip

Sathi Das, Kanchan Saxena, Abdolrahman Khezri, Vishesh Dubey, Azeem Ahmad, Jean-Claude Tinguely, Dalip Singh Mehta, Rafi Ahmad, Balpreet Singh Ahluwalia

Proceedings Volume 12396, 123960C (2023) https://doi.org/10.1117/12.2650578

KEYWORDS: Raman spectroscopy, Surface enhanced Raman spectroscopy, Nanowires, Silicon, Bacteria, Proteins, Silver, Pathogens, Vibration, Semiconducting wafers

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Proceedings Article | 16 March 2023 Presentation

Quantitative phase microscopy for life science and diagnosis (Conference Presentation)

Balpreet Singh Ahluwalia, Azeem Ahmad, Vishesh Kumar Dubey, Ankit Butola

Proceedings Volume PC12389, PC123890G (2023) https://doi.org/10.1117/12.2659335

KEYWORDS: Microscopy, Life sciences, Objectives, Temporal coherence, Speckle, Optical microscopy, Ocean optics, Molecules, Luminescence, Liver

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Proceedings Article | 16 March 2023 Presentation

From hours to seconds: towards 100x faster quantitative phase imaging via differentiable microscopy (Conference Presentation)

Udith Haputhanthri, Kithmini Herath, Ramith Hettiarachchi, Hasindu Kariyawasam, Azeem Ahmad, Balpreet Ahluwalia, Chamira U. Edussooriya, Dushan Wadduwage

Proceedings Volume PC12389, PC1238909 (2023) https://doi.org/10.1117/12.2651582

KEYWORDS: Microscopy, Phase imaging, Optical sensors, Image compression, Reconstruction algorithms, Optical components, Objectives, Neural networks, Transformers, Nanofabrication

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Proceedings Article | 15 March 2023 Presentation + Paper

Quantitative phase imaging for tracing the motion of waveguide trapped bead particle

Sunil Bhatt, Ankit Butola, Sebastian Acuña, Daniel Henry Hansen, Jean-Claude Tinguely, Dalip Singh Mehta, Balpreet Singh Ahluwalia, Krishna Agarwal

Proceedings Volume 12383, 1238305 (2023) https://doi.org/10.1117/12.2650238

KEYWORDS: Particles, Waveguides, Polystyrene, Phase interferometry, Phase imaging, Molybdenum, Biological samples, Phase reconstruction, Motion analysis, Light sources

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Proceedings Article | 6 March 2023 Presentation

Photonic-chip based multimodal optical imaging of formalin-fixed paraffin-embedded tissue sections (Conference Presentation)

Vishesh Kumar Dubey, Azeem Ahmad, Luis Villegas, Hong Mao, Mona Nystad, Ganesh Acharya, Balpreet Singh Ahluwalia

Proceedings Volume 12371, 1237103 (2023) https://doi.org/10.1117/12.2649860

KEYWORDS: Tissue optics, Tissues, Optical imaging, Microscopy, Waveguides, Organisms, Super resolution, Image resolution, Reconstruction algorithms, Phase shifting

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SPIE Journal Paper | 11 November 2020 Open Access

Highly temporal stable, wavelength-independent, and scalable field-of-view common-path quantitative phase microscope

Azeem Ahmad, Vishesh Dubey, Ankit Butola, Balpreet Singh Ahluwalia, Dalip Singh Mehta

JBO, Vol. 25, Issue 11, 116501, (November 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.11.116501

KEYWORDS: Glasses, Optical spheres, Phase measurement, Objectives, Microscopes, Image resolution, Interferometry, Cameras, Diffraction gratings, Refractive index

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Proceedings Article | 21 August 2020 Poster + Paper

Waveguide chip coupled with microfluidics enables super-resolution live-cell imaging

Matteo Boninsegna, Nikhil Jayakumar, Firehun Tsige Dullo, Peter A. McCourt, Thomas Huser, Balpreet Singh Ahluwalia, Antoni Homs Corbera

Proceedings Volume 11483, 114830T (2020) https://doi.org/10.1117/12.2568385

KEYWORDS: Waveguides, Microfluidics, Optofluidics, Super resolution microscopy, Super resolution, Microscopy, Imaging systems

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Proceedings Article | 22 July 2019 Paper

Adaptive fluctuation imaging captures rapid subcellular dynamics

Ida Opstad, Florian Ströhl, Åsa Birgisdottir, Sebastián Maldonado, Trine Kalstad, Truls Myrmel, Krishna Agarwal, Balpreet Ahluwalia

Proceedings Volume 11076, 110761W (2019) https://doi.org/10.1117/12.2526846

KEYWORDS: Super resolution microscopy, Imaging systems, Reconstruction algorithms, Detection and tracking algorithms, Luminescence, Data acquisition, Cameras, Image fusion, Image resolution, Temporal resolution

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Proceedings Article | 22 July 2019 Paper

Label-free nanoscopy enabled by coherent imaging with photonic waveguides

Florian Ströhl, Ida Opstad, Jean-Claude Tinguely, Firehun Dullo, Clemens Kaminski, Balpreet Ahluwalia

Proceedings Volume 11076, 110760Z (2019) https://doi.org/10.1117/12.2525702

KEYWORDS: Waveguides, Super resolution microscopy, Reconstruction algorithms, Image resolution, Coherence imaging, Microscopy, Objectives, Spatial frequencies, Microscopes, Resolution enhancement technologies

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Proceedings Article | 14 December 2017 Open Access

Chip-based nanoscopy: towards integration and high-throughput imaging

David Coucheron, Øystein Helle, Christina Øie, Firehun Dullo, Balpreet Ahluwalia

Proceedings Volume 10350, 103500W (2017) https://doi.org/10.1117/12.2273902

KEYWORDS: Waveguides, Microscopy, Objectives, Diffraction, Super resolution microscopy, Super resolution, Luminescence, Optical microscopy, Plasma, Microscopes

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Proceedings Article | 26 August 2015 Open Access

Chip-based optical microscopy for imaging membrane sieve plates of liver scavenger cells

Øystein Helle, Cristina Øie, Peter McCourt, Balpreet Ahluwalia

Proceedings Volume 9554, 95540O (2015) https://doi.org/10.1117/12.2187277

KEYWORDS: Waveguides, Microscopy, Liver, Objectives, Optical microscopy, Optical imaging, Signal to noise ratio, Optical fibers, Multiplexing, Luminescence

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Proceedings Article | 19 November 2014 Paper

Optical nanoscopy of a living cell

Balpreet Ahluwalia, Deanna Wolfson, Frank Chuang, Thomas Huser

Proceedings Volume 9169, 91690V (2014) https://doi.org/10.1117/12.2062581

KEYWORDS: Microscopy, Optical resolution, Super resolution microscopy, Resolution enhancement technologies, Stimulated emission depletion microscopy, Optical transfer functions, Spatial frequencies, Luminescence, Super resolution, Live cell imaging

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Proceedings Article | 15 October 2014 Paper

Optical deformation of red blood cells trapped on a narrow waveguide

Balpreet Ahluwalia, Peter McCourt, James Wilkinson, Thomas Huser, Olav Hellesø

Proceedings Volume 9164, 916424 (2014) https://doi.org/10.1117/12.2062590

KEYWORDS: Waveguides, Blood, Optical tweezers, Particles, Refractive index, Geometrical optics, Tantalum, Objectives, Physics, Light wave propagation

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Proceedings Article | 8 March 2014 Paper

Sensitivity of Mach-Zehnder interferometer for dissolved gas monitoring

Susan Lindecrantz, Firehun Dullo, Balpreet Ahluwalia, Olav Hellesø

Proceedings Volume 8988, 898818 (2014) https://doi.org/10.1117/12.2039431

KEYWORDS: Waveguides, Refractive index, Sensors, Polarization, Methane, Mach-Zehnder interferometers, Water, Phase measurement, Calibration, Single mode fibers

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Proceedings Article | 25 February 2014 Paper

Near-field waveguide trapping and tracking of particles using fluorescence imaging

Balpreet Ahluwalia, Petter Brox, Øystein Helle, Jean-Claude Tinguely, Olav Hellesø

Proceedings Volume 8999, 899905 (2014) https://doi.org/10.1117/12.2039235

KEYWORDS: Particles, Waveguides, Diffraction, Calibration, Luminescence, Objectives, Near field, Detection and tracking algorithms, Algorithm development, Image analysis

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Proceedings Article | 12 September 2013 Paper

Optical waveguide loop for planar trapping of blood cells and microspheres

Balpreet Ahluwalia, Olav Hellesø

Proceedings Volume 8810, 88100T (2013) https://doi.org/10.1117/12.2023945

KEYWORDS: Waveguides, Particles, Optical spheres, Blood, Neodymium, Optical tweezers, Tantalum, Ions, Numerical simulations, Finite element methods

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Proceedings Article | 23 February 2011 Paper

Optical trapping forces on biological cells on a waveguide surface

Pal Lovhaugen, Balpreet Ahluwalia, Thomas Huser, Peter McCourt, Olav Gaute Helleso

Proceedings Volume 7902, 79020N (2011) https://doi.org/10.1117/12.873779

KEYWORDS: Waveguides, Refractive index, Scattering, 3D modeling, Optical tweezers, Finite element methods, Blood, Spherical lenses, Light scattering, Optical spheres

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Proceedings Article | 17 February 2011 Paper

Optical waveguide trapping forces on hollow glass spheres

Pål Løvhaugen, Balpreet Ahluwalia, Olav Hellesø

Proceedings Volume 7950, 79500P (2011) https://doi.org/10.1117/12.873772

KEYWORDS: Optical spheres, Waveguides, Glasses, Scattering, Finite element methods, Particles, Solids, Mie scattering, Wave propagation, Water

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Proceedings Article | 12 February 2010 Paper

Fabrication and optimization of Tantalum pentoxide waveguides for optical micro-propulsion

Balpreet Singh Ahluwalia, Olav Gaute Hellesø, Ananth Subramanian, Nicolas M. Perney, Neil Sessions, James Wilkinson

Proceedings Volume 7604, 76040W (2010) https://doi.org/10.1117/12.840393

KEYWORDS: Waveguides, Tantalum, Refractive index, Wave propagation, Particles, Absorption, Silicon, Annealing, Oxygen, Ion beams

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Proceedings Article | 8 February 2010 Paper

Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting

Balpreet Singh Ahluwalia, Olav Gaute Hellesø, Ananth Subramanian, James Wilkinson, Jie Chen, Xuyuan Chen

Proceedings Volume 7613, 76130R (2010) https://doi.org/10.1117/12.840632

KEYWORDS: Waveguides, Particles, Blood, Optical tweezers, Refractive index, Distortion, Tantalum, Silicon, Water, Optical sorting

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Proceedings Article | 8 February 2010 Paper

Collinear non-diffracting beams: classification and properties

Balpreet Ahluwalia, Woei Lee

Proceedings Volume 7613, 76130U (2010) https://doi.org/10.1117/12.840390

KEYWORDS: Bessel beams, Nondiffracting beams, Beam propagation method, Laser beam propagation, Modulation, Modes of laser operation, Optical tweezers, Free space, Free space optics, Stimulated emission depletion microscopy

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Proceedings Article | 20 January 2006 Paper

Design and fabrication of micro-optical elements for the generation of various novel beams and its applications in optical tweezers

X. Yuan, B. Ahluwalia, W. Cheong, L. Zhang, W. Lee, K. Moh, S. Tao, H. Niu, X. Peng

Proceedings Volume 6027, 602709 (2006) https://doi.org/10.1117/12.667706

KEYWORDS: Spiral phase plates, Optical tweezers, Bessel beams, Optical components, Gaussian beams, Silica, Optical vortices, Axicons, Electron beam lithography, Refractive index

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Proceedings Article | 27 August 2005 Paper

Self-imaged optical bottle beam based optical tweezers systems

Balpreet Singh Ahluwalia, Xiaocong Yuan, Shaohua Tao

Proceedings Volume 5930, 59300V (2005) https://doi.org/10.1117/12.615827

KEYWORDS: Bessel beams, Particles, Optical tweezers, Beam propagation method, Wave propagation, Holograms, Imaging systems, Laser beam propagation, Chemical species, Optical spheres

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Proceedings Article | 18 August 2005 Paper

Bottle beam based optical trapping system for three-dimensional trapping of high and low index microparticles

Balpreet Singh Ahluwalia, Xiaocong Yuan, Shaohua Tao

Proceedings Volume 5931, 593110 (2005) https://doi.org/10.1117/12.613146

KEYWORDS: Particles, Optical tweezers, Bessel beams, Holograms, Beam propagation method, Radio propagation, Optical spheres, Composites, Laser beam propagation, Wave propagation

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Proceedings Article | 7 February 2005 Paper

Optical trapping and micromanipulation using microbeam shaping created by micro-optical elements

X.-C. Yuan, W.M. Lee, W.C. Cheong, S.H. Tao, B.S. Ahluwalia, K.J. Moh, M. He, H.B. Niu, X. Peng

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.571969

KEYWORDS: Spiral phase plates, Optical tweezers, Bessel beams, Optical components, Particles, Axicons, Modulation, Beam propagation method, Chemical elements, Optical manipulation

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Proceedings Article | 18 October 2004 Paper

Selective optical trapping using optical beams with fractional helical phase

Xiao-Cong Yuan, Shao Hua Tao, Woei Ming Lee, Balpreet Ahluwalia

Proceedings Volume 5514, (2004) https://doi.org/10.1117/12.551016

KEYWORDS: Bessel beams, Spatial light modulators, Holograms, Optical tweezers, Particles, Gaussian beams, Beam shaping, Optical micromanipulation, Beam analyzers, Beam propagation method

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