Surface roughness measurement of aluminium thin film by laser speckle method

Balamurugan, R.; Rathina, K.; Arul, A. R.; Inbakumar, S.; Sethuraman, R. G.

doi:10.1063/5.0019448

Cited by 2 publications

(1 citation statement)

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“…The tracer particle shooting method by CCD has become an appropriate method for resolving the velocity of fluid flow. A laser speckle is an image pattern having a tiny granular appearance of spots by the interference of scattering laser from the surface of the specimen [26]. The particle image velocimetry (PIV) method relies on the scattering of particles released into the flow, offering velocity information by tracking the movement of tracer particles in the fluid flow instantaneously.…”

Section: Cell Damage and Preventionmentioning

confidence: 99%

Investigation of renal calculi fragmented tracer particles in lithotripsy model by laser speckle technique

Balamurugan,

Rathina

2024

Laser Phys.

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We have developed a laser sheet method to evaluate micro-sized fragmented calcium oxalate granular particles created kidney stones suspended in a Newtonian fluid in an in vitro model. These tracer particles are examined by laser optical techniques. An optical setup is configured with a laser sheet to conduct image velocimetry on these calcium oxalate seed particles in the urine environment. The experimental setup involves the application of ultrasonic waves to fragment the calcium oxalate tiny stones of varying sizes and disperse them in random directions in the fluid. The data acquisition process employs double frame-single exposure imaging, which captures images at specified time intervals using a high-resolution CCD camera. This provides information regarding particle displacement and track the flow path within the Newtonian fluid. In addition, the bigger fragmented particles are identified, and their sizes are also measured.

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Section: Cell Damage and Preventionmentioning

confidence: 99%