author = "Hasar, Ugur Cem and Ozbek, I. Y. and Cavusoglu, B. and Karacali, 
                         T. and Efeoglu, H. and Barroso de Castro, Joaquim Jos{\'e}",
          affiliation = "{University of Gaziantep} and {Ataturk University} and {Ataturk 
                         University} and {Ataturk University} and {Ataturk University} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Characterization of porous silicon fabry-p{\'e}rot optical 
                         sensors for reflectivity and transmittivity measurements",
              journal = "IEEE Journal of Select Topics in Quantum Electronics",
                 year = "2015",
               volume = "21",
               number = "4",
             keywords = "characterization, Fabry-Perot cavity, optical sensors, Porous 
                         silicon, reflectivity, transmittivity.",
             abstract = "We investigate the effect of fabrication parameters (nonequal 
                         surface current densities, impurities inside the structure, etc.) 
                         and loss factor on reflectivity and transmittivity measurements 
                         from porous silicon Fabry-P{\'e}rot cavities with finite-size 
                         substrate thicknesses. We apply the formalism based on wave 
                         cascade matrix method for obtaining dependencies of reflectivity 
                         and transmittivity. From our analysis, we note the following 
                         results. First, resonance behavior of reflectivity and 
                         transmittivity changes only when optical/physical properties of 
                         middle layers of the cavity alter. Second, for lossless cavities, 
                         while reflectivity and transmittivity considerably change with 
                         surface characteristics (optical/physical properties of first 
                         layers), transmittivity is significantly modified by a change of 
                         optical/physical properties of middle layers (microcavity region). 
                         Third, loss inside a FP cavity makes the transmittivity more 
                         immune to variations in optical/physical properties of middle 
                         layers. Finally and most importantly, transmittivity values at 
                         resonance wavelength as well as the resonance wavelength shift can 
                         be utilized for the identification of unknown chemical/biological 
                         molecules by lossless FP cavities. For validation of these 
                         results, we carried out reflectivity and transmittivity 
                         measurements from some arbitrarily chosen positions but around the 
                         center of two fabricated FP cavities resonating at 1456 nm and at 
                         542 nm.",
                  doi = "10.1109/JSTQE.2014.2365583",
                  url = "http://dx.doi.org/10.1109/JSTQE.2014.2365583",
                 issn = "1077-260X",
             language = "en",
           targetfile = "characterization of porous.pdf",
        urlaccessdate = "04 dez. 2020"