Search Results - "Nieminen, Timo A."

Measuring local properties inside a cell‐mimicking structure using rotating optical tweezers by Zhang, Shu, Gibson, Lachlan J., Stilgoe, Alexander B., Nieminen, Timo A., Rubinsztein‐Dunlop, Halina

“…Exploring the rheological properties of intracellular materials is essential for understanding cellular and subcellular processes. Optical traps have been…”
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Optical microrheology using rotating laser-trapped particles by Bishop, Alexis I, Nieminen, Timo A, Heckenberg, Norman R, Rubinsztein-Dunlop, Halina

“…We demonstrate an optical system that can apply and accurately measure the torque exerted by the trapping beam on a rotating birefringent probe particle. This…”
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Optically trapped and driven paddle-wheel by Asavei, Theodor, Nieminen, Timo A, Loke, Vincent L Y, Stilgoe, Alexander B, Bowman, Richard, Preece, Daryl, Padgett, Miles J, Heckenberg, Norman R, Rubinsztein-Dunlop, Halina

“…We demonstrate the control and rotation of an optically trapped object, an optical paddle-wheel, with the rotation direction normal to the beam axis. This is…”
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Mapping organelle motion reveals a vesicular conveyor belt spatially replenishing secretory vesicles in stimulated chromaffin cells by Maucort, Guillaume, Kasula, Ravikiran, Papadopulos, Andreas, Nieminen, Timo A, Rubinsztein-Dunlop, Halina, Meunier, Frederic A

“…How neurosecretory cells spatially adjust their secretory vesicle pools to replenish those that have fused and released their hormonal content is currently…”
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Highly birefringent vaterite microspheres: production, characterization and applications for optical micromanipulation by Parkin, Simon J, Vogel, Robert, Persson, Martin, Funk, Maren, Loke, Vincent L Y, Nieminen, Timo A, Heckenberg, Norman R, Rubinsztein-Dunlop, Halina

“…This paper reports on a simple synthesis and characterization of highly birefringent vaterite microspheres, which are composed of 20-30 nm sized nanocrystalls…”
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Factors influencing the higher education of international students from Confucian East Asia by Choi, Serene H.-J., Nieminen, Timo A.

“…Higher education, especially that leading to a degree from a high-prestige university, is strongly related to social status and employment opportunities in…”
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Controlled transfer of transverse orbital angular momentum to optically trapped birefringent microparticles by Stilgoe, Alexander B., Nieminen, Timo A., Rubinsztein-Dunlop, Halina

“…The interaction between structured light beams possessing optical angular momentum and small particles promises new opportunities for optical manipulation,…”
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Optical angular momentum transfer to microrotors fabricated by two-photon photopolymerization by Asavei, Theodor, Loke, Vincent L Y, Barbieri, Marco, Nieminen, Timo A, Heckenberg, Norman R, Rubinsztein-Dunlop, Halina

“…We design, fabricate and test optically driven microrotors a few microns in size. The rotors are trapped and rotated in optical tweezers using an LG02…”
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Far-Field Subwavelength Straight-Line Projection/Imaging by Means of a Novel Double-Near-Zero Index-Based Two-Layer Metamaterial by Dehbashi, Reza, Plakhotnik, Taras, Nieminen, Timo A.

“…In this paper, for the first time, tuned near-zero-index materials are used in a structure for the long-distance projection of very closely spaced objects with…”
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A photon-driven micromotor can direct nerve fibre growth by Wu, Tao, Nieminen, Timo A., Mohanty, Samarendra, Miotke, Jill, Meyer, Ronald L., Rubinsztein-Dunlop, Halina, Berns, Michael W.

“…Axonal path-finding is important in the development of the nervous system, nerve repair and nerve regeneration. The behaviour of the growth cone at the tip of…”
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Colloquium : Momentum of an electromagnetic wave in dielectric media by Pfeifer, Robert N. C., Nieminen, Timo A., Heckenberg, Norman R., Rubinsztein-Dunlop, Halina

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High-speed transverse and axial optical force measurements using amplitude filter masks by Kashchuk, Anatolii V, Nieminen, Timo A, Rubinsztein-Dunlop, Halina, Stilgoe, Alexander B

“…Direct optical force measurement is a versatile method used in optical tweezers experiments, providing accurate measurements of forces for a wide range of…”
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Factors influencing international PhD students to study physics in Australia by Choi, Serene H.-J., Nieminen, Timo A., Townson, Peter

“…Since physics research is an activity of an active international community, international visits are a common way for physicists to share scientific knowledge…”
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Tired and stressed: direct holographic quasi-static stretching of aging echinocytes and discocytes in plasma using optical tweezers [Invited] by Stilgoe, Alexander B, Kashchuk, Anatolii V, Balanant, Marie-Anne, Santangelo, Deborah, Nieminen, Timo A, Sauret, Emilie, Flower, Robert, Rubinsztein-Dunlop, Halina

“…Red blood cells (RBCs) undergo a progressive morphological transformation from smooth biconcave discocytes into rounder echinocytes with spicules on their…”
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Calibration of force detection for arbitrarily shaped particles in optical tweezers by Bui, Ann A. M., Kashchuk, Anatolii V., Balanant, Marie Anne, Nieminen, Timo A., Rubinsztein-Dunlop, Halina, Stilgoe, Alexander B.

“…Force measurement with an optical trap requires calibration of it. With a suitable detector, such as a position-sensitive detector (PSD), it is possible to…”
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Optical-trapping of particles in air using parabolic reflectors and a hollow laser beam by Pan, Yong-Le, Kalume, Aimable, Lenton, Isaac C D, Nieminen, Timo A, Stilgoe, Alex B, Rubinsztein-Dunlop, Halina, Beresnev, Leonid A, Wang, Chuji, Santarpia, Joshua L

“…We present an advanced optical-trapping method that is capable of trapping arbitrary shapes of transparent and absorbing particles in air. Two parabolic…”
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Equilibrium orientations and positions of non-spherical particles in optical traps by Cao, Yongyin, Stilgoe, Alexander B, Chen, Lixue, Nieminen, Timo A, Rubinsztein-Dunlop, Halina

“…Dynamic simulation is a powerful tool to observe the behavior of arbitrary shaped particles trapped in a focused laser beam. Here we develop a method to find…”
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Optical tweezers: Theory and modelling by Nieminen, Timo A., du Preez-Wilkinson, Nathaniel, Stilgoe, Alexander B., Loke, Vincent L.Y., Bui, Ann A.M., Rubinsztein-Dunlop, Halina

“…Since their development in the 1980s, optical tweezers have become a widely used and versatile tool in many fields. Outstanding applications include the…”
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Discrete-dipole approximation with surface interaction: Computational toolbox for MATLAB by Loke, Vincent L.Y., Pinar Mengüç, M., Nieminen, Timo A.

“…We describe a MATLAB toolbox that utilizes the discrete-dipole approximation (DDA) method for modelling light interaction with arbitrarily-shape scatterers in…”
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Optical manipulation Trapping ions by Nieminen, Timo A

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