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Pontin, A. (author), Lang, J.E. (author), Chowdhury, A. (author), Vezio, P. (author), Marino, F. (author), Morana, B. (author), Serra, E. (author), Marin, F. (author), Monteiro, T.S. (author)
The extraordinary sensitivity of the output field of an optical cavity to small quantum-scale displacements has led to breakthroughs such as the first detection of gravitational waves and of the motions of quantum ground-state cooled mechanical oscillators. While heterodyne detection of the output optical field of an optomechanical system...
journal article 2018
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Pontin, A. (author), Bonaldi, M. (author), Borrielli, Antonio (author), Marconi, L. (author), Marino, F. (author), Pandraud, G. (author), Prodi, G.A. (author), Sarro, P.M. (author), Serra, E. (author), Marin, F. (author)
According to quantum mechanics, if we keep observing a continuous variable we generally disturb its evolution. For a class of observables, however, it is possible to implement a so-called quantum nondemolition measurement: by confining the perturbation to the conjugate variable, the observable is estimated with arbitrary accuracy, or prepared...
journal article 2018
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Marin, Victor (author), Kieffer, R.Y. (author), Padmos, Raymond (author), Aubin-Tam, M.E. (author)
We report a simple, cost-effective, and reproducible method to form free-standing lipid bilayer membranes in microdevices made with Norland Optical Adhesive 81 (NOA81). Surface treatment with either alkylsilane or fluoroalkylsilane enables the self-assembly of stable 1,2-diphytanoyl-sn-glycero-3-phosphocholine 1,2-diphytanoyl-sn-glycero-3...
journal article 2016
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Serra, E. (author), Bawaj, M. (author), Borrielli, Antonio (author), Di Giuseppe, G. (author), Forte, S. (author), Kralj, Nenad (author), Malossi, N. (author), Marconi, L. (author), Marin, F. (author), Marino, F. (author), Morana, B. (author), Natali, Riccardo (author), Pandraud, G. (author), Pontin, A. (author), Prodi, G.A. (author), Rossi, Massimiliano (author), Sarro, P.M. (author), Vitali, David (author), Bonaldi, M. (author)
membranes were fabricated and used as optomechanical resonators in a...
journal article 2016
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Borrielli, A. (author), Pontin, A. (author), Cataliotti, F.S. (author), Marconi, L. (author), Marin, F. (author), Marino, F. (author), Pandraud, G. (author), Prodi, G.A. (author), Serra, E. (author), Bonaldi, M. (author)
We present an oscillating micromirror with mechanical quality factors Q up to 1.2×106 at cryogenic temperature and optical losses lower than 20 ppm. The device is specifically designed to ease the detection of ponderomotive squeezing (or, more generally, to produce a cavity quantum optomechanical system) at frequencies of about 100 kHz. The...
journal article 2015
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Pontin, A. (author), Biancofiore, C. (author), Serra, E. (author), Borrielli, A. (author), Cataliotti, F.S. (author), Marino, F. (author), Prodi, G.A. (author), Bonaldi, M. (author), Marin, F. (author), Vitali, D. (author)
Ponderomotive squeezing of the output light of an optical cavity has been recently observed in the megahertz range in two different cavity optomechanical devices. Quadrature squeezing becomes particularly useful at lower spectral frequencies, for example, in gravitational wave interferometers, despite being more sensitive to excess phase and...
journal article 2014
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Pontin, A. (author), Bonaldi, M. (author), Borrielli, A. (author), Cataliotti, F.S. (author), Marino, F. (author), Prodi, G.A. (author), Serra, E. (author), Marin, F. (author)
Measuring a weak force is an important task for micromechanical systems, both when using devices as sensitive detectors and, particularly, in experiments of quantum mechanics. The optimal strategy for resolving a weak stochastic signal force on a huge background (typically given by thermal noise) is a crucial and debated topic, and the stability...
journal article 2014
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Pontin, A. (author), Bonaldi, M. (author), Borrielli, A. (author), Cataliotti, F.S. (author), Marino, F. (author), Prodi, G.A. (author), Serra, E. (author), Marin, F. (author)
We report the confinement of an optomechanical micro-oscillator in a squeezed thermal state, obtained by parametric modulation of the optical spring. We propose and implement an experimental scheme based on parametric feedback control of the oscillator, which stabilizes the amplified quadrature while leaving the orthogonal one unaffected. This...
journal article 2014
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Rossi, M. (author), Marin, A. (author), Wang, C. (author), Hilgenfeldt, S. (author), Kähler, C.J. (author)
Ultrasound-driven gas bubbles can be used as active actuators to create or modify the flow in microfluidic devices. Oscillating bubbles are able to create a steady streaming flow that can be used to perform several tasks in microfluidic devices. In this work, we focus on a specific configuration with a bubble located at a side wall of a...
conference paper 2013
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Sanchez, L.D. (author), Marin, L.M. (author), Visscher, J.T. (author), Rietveld, L.C. (author)
This paper assesses the operational and design aspects of coagulation and flocculation in upflow gravel filters (CF-UGF) in a multi-stage filtration (MSF) plant. This study shows that CF-UGF units improve the performance of MSF considerably, when the system operates with turbidity above 30 NTU. It strongly reduces the load of particulate...
journal article 2012
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Van der Rijst, R. (author), Marin, M. (author), Van Deursen, A. (author)
Preprint of paper published in: LATE 2008 - Proceedings of the 2008 AOSD Workshop on Linking Aspect Technology and Evolution, 31 March-4 April 2008; doi:10.1145/1404953.1404957 Crosscutting concerns in object-oriented programming hinder evolution because of their symptoms: tangling and scattering. To benefit from the modularisation capabilities...
report 2008
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Marin, A.M. (author)
Evolution of software systems accounts for the largest part of their lifecycle and costs. Software engineers therefore, more often than developing new systems, work on complex, existing ones that they have to understand in order to modify them. Understanding such systems requires insight into the various concerns the systems implement, many of...
doctoral thesis 2008
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Marin, M. (author), Moonen, L. (author), Van Deursen, A. (author)
In this paper we propose a systematic strategy for migrating crosscutting concerns in existing object-oriented systems to aspect-based solutions. The proposed strategy consists of four steps: mining, exploration, documentation and refactoring of crosscutting concerns. We discuss in detail a new approach to aspect refactoring that is fully...
report 2007
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Marin, M. (author), Moonen, L. (author), Van Deursen, A. (author)
Our analysis of crosscutting concerns in real-life software systems (totaling over 500,000 LOC) and in aspect-oriented literature, indicated a number of properties that allow for their decomposition in primitive building blocks which are atomic crosscutting concerns. We identify these blocks as crosscutting concern sorts, and we use them to...
report 2007
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Marin, M. (author), Moonen, L. (author), Van Deursen, A. (author)
Understanding crosscutting concerns is difficult because their underlying relations remain hidden in a class-based decomposition of a system. Based on an extensive investigation of crosscutting concerns in existing systems and literature, we identified a number of typical implementation idioms and relations that allow us to group such concerns...
report 2007
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Marin, M. (author), Moonen, L. (author), Van Deursen, A. (author)
conference paper 2007
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Marin, M. (author), Moonen, L. (author), Van Deursen, A. (author)
The increasing number of aspect mining techniques proposed in literature calls for a methodological way of comparing and combining them in order to assess, and improve on, their quality. This paper addresses this situation by proposing a common framework based on crosscutting concern sorts which allows for consistent assessment, comparison and...
report 2006
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Marin, M. (author), Van Deursen, A. (author), Moonen, L. (author)
Aspect mining is a reverse engineering process that aims at finding crosscutting concerns in existing systems. This paper proposes an aspect mining approach based on determining methods that are called from many different places, and hence have a high fan-in, which can be seen as a symptom of crosscutting functionality. The approach is semi...
report 2006
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Marin, A.M. (author)
We present a consistent system for referring crosscutting functionality, relating crosscutting concerns to specific implementation idioms, and formalizing their underlying relations through queries. The system is based on generic crosscutting concerns that we organize and describe in a catalog. We have designed and implemented a tool support for...
report 2006
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Ceccato, M. (author), Marin, M. (author), Mens, K. (author), Moonen, L. (author), Tonella, P. (author), Tourwé, T. (author)
Understanding a software system at source-code level requires understanding the different concerns that it addresses, which in turn requires a way to identify these concerns in the source code. Whereas some concerns are explicitly represented by program entities (like classes, methods and variables) and thus are easy to identify, crosscutting...
report 2006
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