Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers

Abstract Nano‐scale laser beam size and its shape information are essential parameters in most optics‐based precision measurements and nano‐scale material processing. It is also quite challenging to measure nano‐size optical beams accurately for both open experiments and at compact workplace of micr...

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Main Authors: Nagendra Singh, Sriram Krishnan, Samir Kumar Biswas
Format: Article
Language:English
Published: Wiley-VCH 2024-02-01
Series:Nano Select
Subjects:
Online Access:https://doi.org/10.1002/nano.202300083
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author Nagendra Singh
Sriram Krishnan
Samir Kumar Biswas
author_facet Nagendra Singh
Sriram Krishnan
Samir Kumar Biswas
author_sort Nagendra Singh
collection DOAJ
description Abstract Nano‐scale laser beam size and its shape information are essential parameters in most optics‐based precision measurements and nano‐scale material processing. It is also quite challenging to measure nano‐size optical beams accurately for both open experiments and at compact workplace of microscope due to various instrumental factors. Outside of the visible spectrum, usually wavelength‐sensitive fluorescence markers and composite materials are used to read the laser beam profile. In this article, a cost‐effective carbon nano‐particles (CNPs) film has been developed from candle soot. Furthermore, the developed bio‐carbon soot film is encapsulated with optically transparent composite polymer on aqueous media to measure sub‐micron size spot of a low‐power laser. Field emission scanning electron microscopy, optical spectrum analysis, Fourier transform infrared spectroscopy, UV‐visible spectroscopy, differential scanning calorimetry and thermogravimetric analysis techniques have been performed to characterize the developed CNPs film and optimized its functionality. The fabricated film has been used to measure sub‐micron laser beam size. Due to the wide absorption spectrum of the developed bio‐CNPs film, the sensitivity region for measurement lies within both visible and beyond the visible spectrum.
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spelling doaj.art-33bd15668f1d402b973589fdf3eed5952024-02-08T20:30:43ZengWiley-VCHNano Select2688-40112024-02-0152n/an/a10.1002/nano.202300083Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasersNagendra Singh0Sriram Krishnan1Samir Kumar Biswas2Department of Physical Sciences Indian Institute of Science Education and Research Mohali Manauli IndiaDepartment of Physical Sciences Indian Institute of Science Education and Research Mohali Manauli IndiaDepartment of Physical Sciences Indian Institute of Science Education and Research Mohali Manauli IndiaAbstract Nano‐scale laser beam size and its shape information are essential parameters in most optics‐based precision measurements and nano‐scale material processing. It is also quite challenging to measure nano‐size optical beams accurately for both open experiments and at compact workplace of microscope due to various instrumental factors. Outside of the visible spectrum, usually wavelength‐sensitive fluorescence markers and composite materials are used to read the laser beam profile. In this article, a cost‐effective carbon nano‐particles (CNPs) film has been developed from candle soot. Furthermore, the developed bio‐carbon soot film is encapsulated with optically transparent composite polymer on aqueous media to measure sub‐micron size spot of a low‐power laser. Field emission scanning electron microscopy, optical spectrum analysis, Fourier transform infrared spectroscopy, UV‐visible spectroscopy, differential scanning calorimetry and thermogravimetric analysis techniques have been performed to characterize the developed CNPs film and optimized its functionality. The fabricated film has been used to measure sub‐micron laser beam size. Due to the wide absorption spectrum of the developed bio‐CNPs film, the sensitivity region for measurement lies within both visible and beyond the visible spectrum.https://doi.org/10.1002/nano.202300083bio‐carbon nano‐particlescandle sootlaser beam diameterlaser markinglow power lasersub‐micron laser spot
spellingShingle Nagendra Singh
Sriram Krishnan
Samir Kumar Biswas
Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
Nano Select
bio‐carbon nano‐particles
candle soot
laser beam diameter
laser marking
low power laser
sub‐micron laser spot
title Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
title_full Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
title_fullStr Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
title_full_unstemmed Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
title_short Encapsulated bio‐carbon soot film for measuring nano‐size beam diameter of low power lasers
title_sort encapsulated bio carbon soot film for measuring nano size beam diameter of low power lasers
topic bio‐carbon nano‐particles
candle soot
laser beam diameter
laser marking
low power laser
sub‐micron laser spot
url https://doi.org/10.1002/nano.202300083
work_keys_str_mv AT nagendrasingh encapsulatedbiocarbonsootfilmformeasuringnanosizebeamdiameteroflowpowerlasers
AT sriramkrishnan encapsulatedbiocarbonsootfilmformeasuringnanosizebeamdiameteroflowpowerlasers
AT samirkumarbiswas encapsulatedbiocarbonsootfilmformeasuringnanosizebeamdiameteroflowpowerlasers