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ARIAS I QUERALT MARINA_5181484_assignsubmission_file_TFG_Arias_Queralt_Marina.pdf (751.75 KB)

Document type

Bachelor thesis

Publication date

2022-02

Publication license

cc-by-nc-nd (c) Arias, 2022
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/189646

Study of the stability of optical tweezers

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Abstract

The aim of this project is twofold: to analyze the stability of optical tweezers and to implement a new scheme to generate them. The initial analysis is done by comparing the two most common multiple object manipulation techniques, which are the Time-Sharing Optical Tweezers (TSOT) and Holographic Optical Tweezers (HOT). To achieve this, a trap calibration framework is designed using a high-speed camera that allows to analyze particle dynamics with high temporal and spatial resolution. Once the advantages and disadvantages of each method are known, a new scheme is proposed and implemented using elements of the two most used techniques combined. The combination results in simultaneously generating two types of traps, having the speed of TSOT with the stability of HOT. This allows to generate more stable traps than with TSOT, while being compatible with force measurement techniques

Description

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2022, Tutors: Raul Bola Sampol, Mario Montes Usategui

Subject

Pinces òptiques, Estabilitat, Treballs de fi de grau

Subject (English)

Optical tweezers, Stability, Bachelor's theses

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Treballs Finals de Grau (TFG) - Física

Citation

ARIAS QUERALT, Marina. Study of the stability of optical tweezers. [consulted: 13 of August of 2026]. Available at: https://hdl.handle.net/2445/189646

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