The Mosaic group at the Institut Fresnel offers training periods for graduate students in optics and photonics. PhD positions are also available based on the different internship subjects, depending on the applicant’s profile and fundings (read more about this topic in my previous post here). More information can be found on the MOSAIC website.
I would like to give a special emphasis to the subject I propose following this link:
As member of the OMNT “materials and components for optics” committee, I regularly give a selection and a brief description of articles, that I found particularly relevant to the field. Here is my latest selection :
"Generation of optical Schrödinger cats from photon number states"; Alexei Ourjoumtsev, Hyunseok Jeong, Rosa Tualle-Brouri et Philippe Grangier, Nature 448, 784-786 (2007).
Schrodinger’s cat is a Gedankenexperiment in quantum physics, in which an atomic decay triggers the death of the cat. Because quantum physics allow atoms to remain in superpositions of states, the classical cat would then be simultaneously dead and alive. By analogy, a ‘cat’ state of freely propagating light can be defined as a quantum superposition of well separated quasiclassical states—it is a classical light wave that simultaneously possesses two opposite phases. Such states play an important role in fundamental tests of quantum theory and in many quantum information processing tasks, including quantum computation, quantum teleportation and precision measurements. Recently, optical Schrodinger ‘kittens’ were prepared; however, they are too small for most of the aforementioned applications and increasing their size is experimentally challenging. Here we demonstrate, theoretically and experimentally, a protocol that allows the generation of arbitrarily large squeezed Schrodinger cat states, using homodyne detection and photon number states as resources. We implemented this protocol with light pulses containing two photons, producing a squeezed Schro¨dinger cat state with a negative Wigner function. This state clearly exhibits several quantum phase-space interference fringes between the ‘dead’ and ‘alive’ components, and is large enough to become useful for quantum information processing and experimental tests of quantum theory.
"Label-free single molecule detection with optical microcavities"; A. A. Armani, R. P. Kulkarni, S.E. Fraser, R. C. Flagan et K. J. Vahala, Science 317, 783-787 (2007).
"Electromigrated nanoscale gaps for surface enhanced Raman spectroscopy"; D.R. Ward, N.K. Grady, C.S. Levin, N.J. Halas, Y. Wu, P. Nordlander et D. Nathelson, Nano Letters 7, 1396-1400 (2007).
I’ll attend (and give a talk) at the next workshop on plasmonics in biology and medicine, to be held on Friday December 14th 2007 at ESPCI, 10 rue vauquelin 75005, Paris
Visit the website : http://gdr2588.ibl.fr/plasmon/intro_plasmonique.php
Registration is free !!!
Because of their unique optical properties, the use of plasmons is getting more and more important for biological and medical research. These applications include the use of surface plasmon resonance (SPR) to measure bioaffinity reactions, tailoring fluorescence properties and the use of metal colloids as new light-scattering probes fro imaging or phototherapy.
The goal of this workshop is to provide an interdisciplinary forum for state-of-the-art methods and instrumentation related the new research area of plasmonics and related nanosystems and their applications in biology and medicine. A poster session will complete the lectures and allows everyone to exchange their ideas on plasmonic.
The 3-years ANTARES project aims at fabricating and characterizing nanostructured substrates for surface enhanced Raman scattering (SERS) and fluorescence emission. The controlled arrangement of the colloidal structure and the use of single crystal colloids will enable to adapt the optical specifications in terms of spectral response and electromagnetic enhancement.
Learn more at http://icb.u-bourgogne.fr/antares/
OK, nothing really new on this blog for quite a while… Ah, summer time, “perfect-time-to-get-research-done”, and so few new findings by the end of it. At least, I perfected my knowledge about the carrying babies stuff, and increased by left forearm muscles with this cute 6kg princess :o)