Scientific Talks

Local viscoelastic properties of living cells studied by Force Feedback Microscopy
5th Multifrequency AFM Conference
Madrid Spain
Tuesday 17th June 2014
talk by Luca Costa

Experimental exploration of near field heat transfer
Casimir Physics 2014 Les Houches April 2014

Measurements of the Heat Transfer in Near Field Regime and the Influence of Graphene Layer
Progress In Electromagnetics Research Symposium 
invited talk
PIERS 2013 in Stockholm, Sweden, 12-15 August, 2013

Imaging Biomolecules with the Force Feedback Microscope
AFM BioMed Conference Shanghai China 2013 The Fifth International Meeting on AFM in Life Sciences and Medicine Shanghai, China/ May 7-11, 2013

Active control of near-field heat transfer with phase change materials
Ecole de Physique les Houches 12-17 may 2013
This school project aims to offer an introduction into the state of the art in the field of radiative heat transfer at the nanoscale. The school will be organised in a series of lectures (typically 1 hour) given by internationally recognized personalities in theoretical or experimental research in near-field thermal radiation and poster sessions will be organized in parallel to favour the scientific exchanges.

Smartphone: an experimental real time platform to interactively teach physics
Palestra do Departamento de FísicaHow can we use “low cost general consumer" high technologies to present and to teach sciences.

Force Feedback Microscope: a new AFM without the jump to contact
Luca Costa1, Mario Silveira Rodrigues2, Joel Chevrier3, and Fabio Comin
European Synchrotron Radiation Facility, Grenoble, France
FCUL Faculdade Ciências Universidade de Lisboa, Lisbon, Portugal
Institut Neel, Grenoble, France
Poster at ICN+T 2012

Development of a Teaching Sequence on Nanotechnology, Documented by an Analysis of Controversies
September 26th, 2012
Woodland Commons, University of Massachusetts Dartmouth
Kaput Center
Blog and Discussion
See the talk here
What are the ways school science can effectively empower high school pupils to understand and engage in debates on nanotechnologies. The manner controversial questions can be taught in science classrooms has been investigated for a few years. In particular, studies undertaken within the research movement of "socioscientific issues" (Albe, 2009; Sadler, 2009) try to identify how school science can help students to develop abilities to participate in debates and make informed decisions on controversial issues. Here nanotechnologies are regarded as a socioscientific issue and our main purpose is to identify how a learning sequence can help students to critically consider the many discourses held by different actors concerned by these developments.
To avoid making implicit educational choices, we first completed an analysis of controversies raised by nanotechnologies as recommended by Albe (2009). To carry it out we relied on sociology of science methodologies developed to map controversies. We used documents produced for the French public debate on nanotechnologies that took place during Winter 2009-2010 where every actor willing to participate the debate could sum up in four pages their stances and arguments. We also added to this corpus some texts by a French group opposing nanotechnologies that refused to participate the debate but regularly commented it and interacted with the commission organizing these meetings. Then, following a Design-Based Research perspective (Cobb, Confrey, di Sessa, Lehrer, & Schauble, 2003), we worked with four high school teachers and implemented activities in their classrooms. In the first activity, pupils had to study some documents used for our analysis of controversies. These documents were selected to address the different dimensions identified through this analysis. Next, throughout a role-play, students confronted the arguments put forward by an actor, with the case of other actors. This role-play was followed by a whole-class discussion where pupils could express their opinions and react on the arguments exchanged during the role-play. Following this first activity, the students took part in an information retrieval on the Internet to delve into the different facets of the controversy and presented the results of their quests to the class. We summed up the elements put forward by pupils through these presentations and produced a text summarizing the aspects of the debates they deemed important. Then, the last activity of this learning sequence consisted in discussing and modifying this text as well as in one case, preparing questions for a scientist that would come to the high school to exchange (Exchange or give a lecture?) with the students on nanotechnologies.

Sur le site de l'exposition "Entrée en matière" du CNRS, on peut écouter : Visitez le Nanomonde

Espace public et sciences : un MidiSciences riche en échanges

Kick off meeting InMediats 2012


Near Field Heat Transfer, Casimir Physics School - Workshop at the Lorentz Center Leiden, March 2012 

Casimir and heat transfer, in Physics of Quantum Electronics Snowbird Utah janvier 2011

Séminaire au Département de Physique de NCSU Rayleigh Mai 2011

Teenagers and Nanotechnologies , Bag Speaker Series, Special Presentation: Teenagers and Nanotechnologies, May 26, 2011 10:00 AM, Inspire, Innovate, Educate.Friday Institute for Innovative Education, NCSU Rayleigh Download a video of this presentation here

Ecole d’été de Physique à Grenoble pour plus de 200 professeurs de physique et chimie des lycées. Une semaine de conferences et de visites de laboratoires. Aout 2011

Séminaire au Département de Physique de Georgia Tech Janvier 2010

Séminaire au Département de Physique de University of Florida Janvier 2010

In situ observation of the elastic deformation of a single epitaxial SiGe crystal by combining atomic force microscopy and micro x-ray diffraction
 ESRF Workshop Science with X-ray Nano-beams Fevrier 2010

Organisateur de Casimir, van der Waals and nanoscale interactions, workshop à l’Ecole de physique des Houches avril 2010

Nanomécanique: mesure de l'échange de chaleur radiatif en champ proche,
Journées de la matière condensée de la SFP 2010 Troyes
Conférence semi-plénière aout 2010
Seminar at the International Doctoral Training Session, Les Houches, France;
Course 'Frontiers of condensed matter' September 2010

Colloque « Images & mirages @ nanosciences. Regards croisés » à la Fabrique de l’Université Toulouse II-Le Mirail décembre 2010

Hands on Nanosciences
 COGIS'09 (COGnitive systems with Interactive Sensors) November 2009

Séminaire au Laboratoire STEF Cachan Mars 2009

Measures of Casimir Force and of Near-Field Radiative Heat Transfer
 Workshop on New Frontiers of Casimir Force Control
September 28-30, 2009 Santa Fe, NM Organizers: Diego Dalvit (LANL),

Measures of Casimir Force and of Near-Field Radiative Heat Transfer
The University of Oklahoma Norman, OK USA September 21-25, 2009

Séminaire PRISM au Birck Nanoscience Center Purdue University Octobre 2009
Near-field radiative heat transfer and Casimir Force Measurement
By Joel Chevrier
Department of Physics, University Joseph Fourier, Grenoble, France
Near-field force and energy exchange between two objects due to quantum and thermal induced electrodynamic fluctuations give rise to interesting phenomena such as Casimir/van der Waals forces and thermal radiative transfer far exceeding Planck theory of blackbody radiation. While quantum fluctuations, related to zero point energy, yelds to the formulation of the Casimir/van der Waals force, near-field radiative heat transfer is only due to classical thermodynamics charge fluctuations. Although significant progress has been made in the past in the precise measurement of the Casimir force, a detailed quantitative comparison between theory and experiments in the sub-micron regime was still lacking when speaking about heat transfer. I shall first make a simple introduction on how the charge fluctuations give rises to these effects that are nowadays most effectively detected using MEMS or AFM technologies. This will lead me to question the relevance of these effects in the use of MEMS. After description of our quantitative measurement of the Casimir force and comparison with theory, I shall report on our experimental data on the thermal flux spatial dependence. Theory based on the Derjaguin approximation, successfully used here for the first time to describe radiative heat transfer from the far field to the near field regimes, reproduces the measured dependence.

Séminaire au Département de Physique de Indiana University Octobre 2009

Séminaire au Workshop ESF Casimir Abbaye de Royaumont Décembre 2008