Browsing by Author "Azcona Guerrero, Francisco Javier"
Now showing items 1-20 of 20
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A nanometric displacement measurement system using differential optical feedback interferometry
(2013-11-01)
Article
Restricted access - publisher's policy -
A new method for the acquisition of arterial pulse wave using self-mixing interferometry
(2014-11-01)
Article
Open AccessIn this paper we present a technique based on self-mixing interferometry as a method for the acquisition and reconstruction of the arterial pulse wave. A modification of the classic fringe counting reconstruction algorithm ... -
Adaptive autofocus technique for speckle control in optical feedback interferometry
(2014-09-01)
Article
Restricted access - publisher's policyAn adaptive autofocus technique for the control of speckle effect in optical feedback interferometry (OFI) is discussed. The beam spot size effect over the OFI signal is presented, justifying the proposed approach. An ... -
Adaptive feedback control in self-mixing interferometry using active optical elements
(Universidad de Murcia, 2011)
Conference report
Open AccessA voltage-controlled liquid lens has been used as an adaptive optical element integrated in a conventional self-mixing interferometry setup. The lens is used to control the optical feedback level and the focus position of ... -
Analysis and control of speckle effects in self-mixing interferometry
(2011)
Conference report
Restricted access - publisher's policy -
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 ... -
Cost-effective laser feedback sensor for nanometric scale acoustic perturbations
(2018-07-01)
Article
Restricted access - publisher's policy -
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 ... -
Dealing with speckle effects in self-mixing interferometry measurements
(2013-05)
Article
Restricted access - publisher's policy -
Differential optical feedback interferometry for the measurement of nanometric displacements
(2014)
Article
Open AccessWe have recently proposed differential optical feedback interferometry as a convenient method to measure nanometric displacements. In this paper, we present experimental results to support the proposed method. The acquisition ... -
Differential self-mixing interferometry for micro-cantilever motion sensing
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2015)
Conference report
Restricted access - publisher's policyForce sensing is a common practice used for the characterization of matter properties and in particular of bio-materials. Different optical methods have been used in the past to allow high resolution force measurements ... -
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 ... -
Frequency-Modulated Optical Feedback Interferometry for Nanometric Scale Vibrometry
(2016-02-18)
Article
Open AccessWe demonstrate a novel method that makes an efficient use of laser nonlinear dynamics when subject to optical self-injection for subwavelength displacement sensing purposes. The proposed methodology combines two different ... -
Implementation of differential self-mixing interferometry systems for the detection of nanometric vibrations
(Universitat Politècnica de Catalunya, 2018-07-20)
Doctoral thesis
Open AccessIn this Thesis, we explore Self-mixing interferometry (SMI ), a method capable of producing high resolution optical path related measurements in a simple, compact and cost-effective way. Even with a notably less complex ... -
Interferometría autorrealimentada para la medición de deformación en materiales estructurales sometidos a cargas dinámicas
(2012)
Conference report
Open Access -
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 ... -
Nuevas líneas de trabajo en metrología óptica en el CD6 de la UPC
(2009)
Conference report
Open Access -
Towards atomic force microscopy measurements using differential self-mixing interferometry
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference lecture
Restricted access - publisher's policyIn this paper, we explore the possibility of joining two measurement techniques that share a similar time frame and that are interested in describing the properties of materials through the study of the micro and ... -
Ultracompact vibrometry measurement with nanometric accuracy using optical feedback
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2015)
Conference report
Restricted access - publisher's policyThe nonlinear dynamics of a semiconductor laser with optical feedback (OF) combined with direct current modulation of the laser is demonstrated to suffice for the measurement of subwavelength changes in the position of a ... -
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 ...
