Browsing by Author "Jha, Ajit"
Now showing items 1-9 of 9
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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 ... -
Continuous wave frequency modulated optical feedback (CWFM-OF) : theory and applications
(Universitat Politècnica de Catalunya, 2016-11-25)
Doctoral thesis
Open Access
Covenantee: Karlsruher Institut für TechnologieDiese Arbeit soll einen Beitrag leisten zur Entwicklung neuer Sensorstrategien, basierend auf Phänomenen der optischer Rückkopplung, in Kombination mit die Intensitätsmodulation des Lasers. Optische Rückkopplung, ein ... -
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 ... -
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 ... -
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 ... -
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 ...
