Now showing items 1-4 of 4

    • A fiber optic ammonia sensor using a universal pH indicator 

      Rodríguez Rodríguez, Adolfo Josué; Ruiz Zamarreño, Carlos Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna; Cruz, René; May Arrioja, Daniel A. (MDPI, 2014)   Artículo / Artikulua  OpenAccess
      A universal pH indicator is used to fabricate a fiber optic ammonia sensor. The advantage of this pH indicator is that it exhibits sensitivity to ammonia over a broad wavelength range. This provides a differential response, ...
    • Gasohol quality control for real time applications by means of a multimode interference fiber sensor 

      Rodríguez Rodríguez, Adolfo Josué; Baldovino Pantaleón, Óscar; Cruz, René; Ruiz Zamarreño, Carlos Upna; Matías Maestro, Ignacio Upna; May Arrioja, Daniel A. (MDPI, 2014)   Artículo / Artikulua  OpenAccess
      In this work we demonstrate efficient quality control of a variety of gasoline and ethanol (gasohol) blends using a multimode interference (MMI) fiber sensor. The operational principle relies on the fact that the addition ...
    • Optical fiber sensors based on nanostructured materials for environmental applications 

      Rodríguez Rodríguez, Adolfo Josué (2014)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La contaminación ambiental es la presencia de agentes físicos, químicos o biológicos presentes en el agua, suelo y aire; siendo perjudiciales para la salud de las personas, así como para la vida vegetal y animal. Las ...
    • Sensitivity enhancement experimental demonstration using a low cutoff wavelength SMS modified structure coated with a pH sensitive film 

      Rodríguez-Rodríguez, W.E.; Del Villar, Ignacio Upna; Ruiz Zamarreño, Carlos Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna; Rodríguez Rodríguez, Adolfo Josué; Domínguez-Cruz, R.F. (Elsevier, 2018)   Artículo / Artikulua
      The multimode interference (MMI) effect in a single mode-multimode-single mode (SMS) can be used fordevelopment of wavelength shift detection based sensors. In this work, the focus is centered on obtainingwavelength shifts ...