Browsing by Author "Yáñez Alvarado, Carlos René"
Now showing items 1-10 of 10
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Confocal flowmeter based on self-mixing interferometry for real-time velocity profiling of turbid liquids flowing in microcapillaries
(2019-08-19)
Article
Open AccessWe propose a new confocal device for flow profiling in microcapillaries. A viewfinder system is developed using a visible light microscope, allowing focusing with high precision an 830 nm Fabry-Perot laser diode on a ... -
Current Developments on Optical Feedback Interferometry as an All-Optical Sensor for Biomedical Applications
(2016-05-13)
Article
Open AccessOptical feedback interferometry (OFI) sensors are experiencing a consistent increase in their applications to biosensing due to their contactless nature, low cost and compactness, features that fit very well with current ... -
Extraction of vibration parameters from optical feedback interferometry signals using wavelets
(2015-12-01)
Article
Open AccessThis paper proposes the use of the wavelet transform as a technique that is suited for fringe detection and analysis of optical feedback interferometry (OFI) signals, thus allowing the retrieval of extremely small physical ... -
Improvement of the signal-to-noise ratio in a low power self-mixing interferometer using a coupled interferometric effect
(2020-12-07)
Article
Open AccessWe present experimental results of a low-emission self-mixing interferometer that uses a coupled interferometric effect to improve the signal produced by a vibrating target. This method is intended to be useful in applications ... -
Medición confocal de la velocidad con que una emulsión fluye en el centro de un capilar utilizando interferometría realimentada
(Asociación Científica de Óptica y Fotónica de Santiago, 2017)
Conference lecture
Restricted access - publisher's policyEn este trabajo se presenta un novedoso sistema confocal de flujometría láser Doppler. Por medio de una técnica de interferometría realimentada, se infiere la frecuencia Doppler relativa a la velocidad con que fluye una ... -
Microcantilever Displacement Measurement Using a Mechanically Modulated Optical Feedback Interferometer
(2016-06-29)
Article
Open AccessMicrocantilever motion detection is a useful tool for the characterization of the physical, chemical and biological properties of materials. In the past, different approaches have been proposed and tested to enhance the ... -
Optical technologies for the improvement of skin cancer diagnosis: a review
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-02)
Article
Open AccessThe worldwide incidence of skin cancer has risen rapidly in the last decades, becoming one in three cancers nowadays. Currently, a person has a 4% chance of developing melanoma, the most aggressive form of skin cancer, ... -
Overview of biofluids and flow sensing techniques applied in clinical practice
(2022-09-09)
Article
Open AccessThis review summarizes the current knowledge on biofluids and the main flow sensing techniques applied in healthcare today. Since the very beginning of the history of medicine, one of the most important assets for evaluating ... -
Self-mixing interferometry techniques for biophotonic applications in flow sensing
(Universitat Politècnica de Catalunya, 2024-01-18)
Doctoral thesis
Open Access(English) In this doctoral thesis, significant strides have been made in the realm of biofluid flow sensing through the innovative integration of Self-Mixing Interferometry (SMI) with confocal microscopy principles, resulting ... -
Vibrometría de alta resolución utilizando interferometría óptica retroalimentada diferencial por modulación electrónica
(2015)
Conference report
Open AccessEn este artículo presentamos un nuevo método para la medición de desplazamientos con amplitud de movimiento inferior a media longitud de onda láser. El método propuesto está basado en la inducción de modulación sobre la ...
