24 citations · 51 across the 16 of their papers we have counts for
16 papers
Diamond membranes: platform for photonic and opto-mechanical applications
Hsin-Hui Huang, Gediminas Seniutinas, Haoran Mu +8
Diamond 1 - 10 micrometers thick membranes are platform for photonic, quantum and opto-mechanic devices with applications across UV-IR spectral ranges. IR characterization of diamo…
Olivine annealed up to 1500 C: changes traced by polarised IR reflectance and magnetization
Daniel Smith, Donatas Narbutis, Hsin-Hui Huang +14
Spectral analysis at the infrared (IR) spectral range is introduced with assignment of synthetic red-green-blue (RGB) colours defined by adjustable wavelength and bandwidth. The RG…
Structure orientation determined in transmission and reflection: q-plate
Hsin-Hui Huang, Meguya Ryu, Shuji Kamegaki +9
Determination of orientation in the imaged sample/scene has a large application potential when the anisotropy of properties is analysed, usually, under a linearly polarised illumin…
Axial resolution post-processing engineering in Fresnel incoherent correlation holography
Shivasubramanian Gopinath, Joseph Rosen, Vijayakumar Anand
Fresnel incoherent correlation holography (FINCH) is a self-interference-based incoherent digital holography method. In FINCH, light from an object point is split into two beams, m…
Bridging Spectroscopy and Advanced Molecular Orientation Analysis with New 4+ Angle Polarization Toolbox in Quasar
Callum Gassner, Jitraporn Vongsvivut, Meguya Ryu +10
Anisotropy plays a critical role in governing the mechanical, thermal, electrical, magnetic, and optical properties of materials, influencing their behavior across diverse applicat…
3D Free-Form Optical Lens -- Miniaturised Fibre Couplers for Astrophotonics
Haoran Mu, Daniel Smith, Tomas Katkus +14
In astronomy, multi-object spectrographs employ fibre positioning robots to couple the light from multiple astronomy sources (stars or galaxies) into multiple multi-mode fibres, wh…
Optimizing the Temporal and Spatial Resolutions and Light Throughput of Fresnel Incoherent Correlation Holography in the Framework of Coded Aperture Imaging
Francis Gracy Arockiaraj, Agnes Pristy Ignatius Xavier, Shivasubramanian Gopinath +3
Fresnel incoherent correlation holography (FINCH) is a well-established digital holography technique for 3D imaging of objects illuminated by spatially incoherent light. FINCH has…
Bessel Speckles
Vijayakumar Anand
Speckle patterns are formed by random interferences of mutually coherent beams. While speckles are often considered as an unwanted noise in many areas, they also formed the foundat…
Imaging with Diffractive Axicons Rapidly Milled on Sapphire by Femtosecond Laser Ablation
Daniel Smith, Soon Hock Ng, Molong Han +4
Fabrication of large area (sub 1 cm cross-section) micro-optical components in a short period of time (approximately 10 min) and with lesser number of processing steps is highly de…
All femtosecond optical pump and X-ray probe: holey-axicon for free electron laser
V. Anand, J. Maksimovic, T. Katkus +21
We put forward a co-axial pump(optical)-probe(X-rays) experimental concept and show performance of the optical component. A Bessel beam generator with a central 100 micrometers-dia…
Tilted black-Si: ~0.45 form-birefringence from sub-wavelength needles
Darius Gailevicius, Meguya Ryu, Reo Honda +14
The self-organised conical needles produced by plasma etching of silicon (Si), known as black silicon (b-Si), create a form-birefringent surface texture when etching of Si orientat…
Compact Three-Dimensional Quantitative Phase Contrast Imager
Vijayakumar Anand, Tomas Katkus, Denver Linklater +2
Detection of phase variations across optically transparent samples is often a difficult task. We propose and demonstrate a compact, lightweight and low cost quantitative phase cont…
A compact single channel interferometer to study vortex beam propagation
Sruthy J. Lathika, A. Vijayakumar, Shanti Bhattacharya
We propose and demonstrate a single channel interferometer that can be used to study how vortex beams propagate. The interferometer consists of a multifunctional diffractive optica…
Fresnel incoherent correlation holography with single camera shot
Vijayakumar Anand, Tomas Katkus, Stefan Lundgaard +4
Fresnel incoherent correlation holography (FINCH) is a self-interference based super-resolution three-dimensional imaging technique. FINCH in inline configuration requires an activ…
Improving Dynamic Range of Speckle Correlation based Optical Lever by spatial multiplexing
Vijayakumar Anand, Shanti Bhattacharya, Joseph Rosen
Speckle correlation based optical levers SC OptLev possess attractive characteristics suitable for sensing small changes in the angular orientations of surfaces. In this study, we…
Implementation of a speckle correlation based optical lever (SC-OptLev) with extended dynamic range
A. Vijayakumar, D. Jayavel, M. Muthaiah +2
A speckle correlation based optical lever (SC-OptLev) is constructed for the measurement of small changes in the angle of orientation of a surface. The dynamic range of SC-OptLev i…