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Computationally Efficient Focal Field Calculation

This project focuses on the computationally efficient evaluation of focal fields using Fast Fourier Transform (FFT) for applications in nanotechnology, confocal microscopy, optical data storage, and manipulation of microscopic particles with optical tweezers. By implementing Richards & Wolf theory, we aim to overcome the time-consuming limitations of direct integration techniques. The goal is to enhance understanding of focal field calculations while providing insights into the manipulation of light with precise applications in optical imaging and particle manipulation.

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Computationally Efficient Focal Field Calculation

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  1. Computationally Efficient Focal Field Calculation Jie Yee Chan (Mentee) SantoshTripathi (Mentor)

  2. Importance of Focused Laser Beam • Nanotechnology • Confocal Microscopy • Optical Data Storage • Manipulation of Microscopic Particles • Optical Tweezers

  3. Focal Field

  4. Final Objective • Efficiently Evaluate the Focal Field through Focusing Lens usingFast Fourier Transform • Semester Goal: Understanding and Implementing Richards & Wolf theory for focal field calculation

  5. Focal Field • Commonly, direct integration is employed but it is too time-consuming and expensive computationally

  6. Example Results Incident ray X-plane Y-Plane Z-Plane Combined

  7. Future Work • Correlate Fast Fourier Transform with Focal Field

  8. Thank you!

  9. Extra Slides • Confocal microscopy is an optical imaging technique used to increase optical resolution • optical tweezer is a scientific instrument that uses a focused laser beam to provide an attractive or repulsive force

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