Zobrazeno 1 - 10
of 23
pro vyhledávání: '"C. Tolentino Dominguez"'
Publikováno v:
Journal of the Optical Society of America A. 40:C87
Photoplethysmographic (PPG) signals arise from the modulation of light reflectivity on the skin due to changes of physiological origin. Imaging plethysmography (iPPG) is a video-based PPG method that can remotely monitor vital signs in a non-invasive
Autor:
Adriana Fontes, R. E. de Araujo, Beate S. Santos, P. E. Cabral Filho, C. Tolentino Dominguez, C. Estupiñán-López
Publikováno v:
Journal of Luminescence. 174:17-21
In this study we evaluated the absolute fluorescence quantum yield ( Φ ) of hydrophilic CdTe QDs in function of different pHs, modified from the alkaline to acid, by using two different chemicals compounds, the mercaptosuccinic acid (MSA-the stabili
Autor:
Anderson S. L. Gomes, Cid B. de Araújo, C. Tolentino Dominguez, Sidney José Lima Ribeiro, Luciana R. P. Kassab, Albert S. Reyna
Publikováno v:
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2018-12-11T17:26:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-01-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da4986dd43842d57ecc7d33983f87ae2
Publikováno v:
Chemical Physics Letters. 464:245-248
We report on a new method, based on random laser emission, to investigate the formation of dimers in laser dye solutions. The single peak spectrum observed at low dye concentration evolves to a double peak spectrum as the concentration increases, and
Publikováno v:
Optics express. 21(15)
A modified spatial filtering method that improves the sensitivity of single-beam and mode-mismatched thermal lens spectroscopy (TLS) for fluorescence quantum yield measurement is presented. The method is based on the detection of the external part of
Publikováno v:
Nonlinear Optics.
We present a thermally managed pump-probe Z-scan technique to characterize the nonthermal third-order optical nonlinearities of photonic materials using continuum lasers, allowing to obtain nonthermal nonlinear refraction index values probing with lo
Autor:
Yvon Lacroute, Denis Chaumont, Cid B. de Araújo, C. Tolentino Dominguez, A.S.L. Gomes, M. Sacilotti
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
We demonstrated directional random laser emission from a dye-doped polymer film in the presence of a scattering medium consisting of TiO 2 nanomembranes. Evidence for coexistence of extended and localized modes are presented.
Publikováno v:
Latin America Optics and Photonics Conference.
We show experimental results on random laser action of rhodamine 6G in aqueous solutions containing alumina particles and SDS with high efficient energy conversion. The threshold is inversely proportional to the SDS concentration.
Autor:
R. M. Oliveira, Cid B. de Araújo, M. S. Vieira, Anderson S. L. Gomes, C. Tolentino Dominguez, Mario Ueda
Publikováno v:
Journal of the Optical Society of America B. 31:1975
We report the first observation, to our knowledge, of ultraviolet upconversion random laser (RL) emission from ZnO films excited by three near-infrared photons in the femtosecond regime. The nanostructured films of ZnO were fabricated on a silicon su
Autor:
R. dos Reis, Luciana S. A. de Melo, R.L. Maltez, Anderson S. L. Gomes, C. Tolentino Dominguez
Publikováno v:
Scopus-Elsevier
We study the dependence of random laser emission from thin polymer films doped with Rh6G using Ag nanoparticles in several concentrations. We demonstrate that a higher optical gain for lasing is obtained via surface-plasmon resonance.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::203d113a158954e07741e1ca595d0bf3
http://www.scopus.com/inward/record.url?eid=2-s2.0-84896790615&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-84896790615&partnerID=MN8TOARS