Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy

Detalhes bibliográficos
Autor(a) principal: Guerreiro, João
Data de Publicação: 2021
Outros Autores: Vieira, Pedro, Coelho, João M. P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/132793
Resumo: Grant No. UIDB/00645/2020
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spelling Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapyFocus lightFour-element division algorithmPartitioning algorithmPhase modulationScatteringSimulated annealing algorithmSpatial light modulatorTurbid mediaAtomic and Molecular Physics, and OpticsInstrumentationRadiology Nuclear Medicine and imagingSDG 3 - Good Health and Well-beingGrant No. UIDB/00645/2020The focusing of light through turbid media like biological tissues is strongly hindered by the scattering of light which limits its safe practice and application in medicine. In order to control this phenomenon, we shaped the incident wavefront using three algorithms including a four-element division algorithm, a partitioning algorithm, and simulated annealing to control, iteratively, a spatial light modulator (SLM). We have tested two different convergence criteria to achieve a focal point inside a turbid environment, made up of a mixture of agar and milk, set to mimic a specific depth of human skin, and provide comparison results. A camera and a lens are used to visualize the focal area and give feedback information to the algorithms. A discussion on the use of these algorithms and convergence criteria is presented, being focused on its convergence time and performance. Depending on the algorithm and operational parameters, improvements of 29% to 46% of the irradiance in the region of interest were accomplished.DF – Departamento de FísicaRUNGuerreiro, JoãoVieira, PedroCoelho, João M. P.2022-02-12T23:27:05Z2021-092021-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/132793eng2304-6732PURE: 36699840https://doi.org/10.3390/photonics8090355info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:11:28Zoai:run.unl.pt:10362/132793Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:47:35.927878Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
title Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
spellingShingle Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
Guerreiro, João
Focus light
Four-element division algorithm
Partitioning algorithm
Phase modulation
Scattering
Simulated annealing algorithm
Spatial light modulator
Turbid media
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
SDG 3 - Good Health and Well-being
title_short Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
title_full Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
title_fullStr Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
title_full_unstemmed Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
title_sort Evaluation of three iterative algorithms for phase modulation regarding their application in concentrating light inside biological tissues for laser induced photothermal therapy
author Guerreiro, João
author_facet Guerreiro, João
Vieira, Pedro
Coelho, João M. P.
author_role author
author2 Vieira, Pedro
Coelho, João M. P.
author2_role author
author
dc.contributor.none.fl_str_mv DF – Departamento de Física
RUN
dc.contributor.author.fl_str_mv Guerreiro, João
Vieira, Pedro
Coelho, João M. P.
dc.subject.por.fl_str_mv Focus light
Four-element division algorithm
Partitioning algorithm
Phase modulation
Scattering
Simulated annealing algorithm
Spatial light modulator
Turbid media
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
SDG 3 - Good Health and Well-being
topic Focus light
Four-element division algorithm
Partitioning algorithm
Phase modulation
Scattering
Simulated annealing algorithm
Spatial light modulator
Turbid media
Atomic and Molecular Physics, and Optics
Instrumentation
Radiology Nuclear Medicine and imaging
SDG 3 - Good Health and Well-being
description Grant No. UIDB/00645/2020
publishDate 2021
dc.date.none.fl_str_mv 2021-09
2021-09-01T00:00:00Z
2022-02-12T23:27:05Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/132793
url http://hdl.handle.net/10362/132793
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2304-6732
PURE: 36699840
https://doi.org/10.3390/photonics8090355
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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