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Monday, February 17 2014:     This poster was presented at Nanoweek Conference 2013 in Dublin, Ireland. Summry of the poster is given below: Far-field super-resolution infrared (IR) absorption micro-spectroscopy is investigated. More specifically, a pump-probe scheme where a first laser pulse exhibiting a central minimum pumps the vibrational population of a sample and where that population is probed with a second delayed pulse exhibiting a central maximum. The probe measures the IR absorption in the region where the pump is minimum and whose spatial extension is below the diffraction limit when the pump intensity exceeds the vibrational saturation threshold, in line with RESOLFT (REversible Saturable OpticaL Fluorescence Transition) schemes [1]. The super-resolution IR scheme was studied from a theoretical point of view to highlight reasonable expectations in terms of mid-IR compatible... + continue reading
Friday, November 15 2013: The number of arthroplasties is rapidly increasing, however most materials used for such applications lack in osseointegration. The improvement of the bone/implant interface has received great attention for many years, with special reference to titanium-based implants. The interface between bone and implant has been considered both by physical approaches focused on surface topography and by chemical/biochemical surface modification by incorporation of organic molecules. The work described here is focused on the fabrication of implant coatings by layer by layer self-assembly of Collagen I (COL) and Hyaluronic acid (HA). The multilayer structure has been characterized by SEM and AFM, and the Titanium substrates coated with this multilayers have been tested with 3T3 cells seeded on Titanium supports. The results show that these coatings are promising for the improvement of implant... + continue reading
Sunday, October 20 2013: Máire Geoghegan-Quinn, EU Commissioner for Research, Innovation & Science talks with Dr. Ning Liu, Dr. Christophe Silien and Dr Tofail Syed, about the LANIR Project, at the Industry Day held at the University of Limerick on 14th October 2013. During her keynote address the Commissioner made reference to the LANIR project and added "Research not only tackles the big challenges that society is facing, but can also develop local economies and create local jobs.” The LANIR project includes six SMEs within its eleven partners and has a strong industry focus.     + continue reading
Thursday, September 12 2013: High resolution imaging with differential infrared absorption micro-spectroscopy Abstract: Although confocal infrared (IR) absorption micro-spectroscopy is well established for far-field chemical imaging, its scope remains restricted since diffraction limits the spatial resolution to values a little above half the radiation wavelength. Yet, the successful implementations of below-the-diffraction limit far-field fluorescence microscopies using saturated irradiation patterns for example for stimulated-emission depletion and saturated structured-illumination suggest the possibility of using a similar optical patterning strategy for infrared absorption mapping at high resolution. Simulations are used to show that the simple mapping of the difference in transmitted/reflected IR energy between a saturated vortexshaped beam and a Gaussian reference with a confocal microscope affords the... + continue reading
Photo of LANIR 18M meeting participants at Dublin, Ireland
Tuesday, June 25 2013: The Month 15 Meeting took place in Dublin, Ireland and was hosted within the Dublin Convention Centre which was hosting EuroNanoForum 2013. The meeting also consisted of a visit of UL facilities at Limerick by some of the Consortium Members. The meeting developed action plans for the next 3 months, in advance of the Consortium and Project Review meeting in September 2013.  + continue reading
Monday, June 24 2013:       Real time chemical and structural imaging at nanoscale and under ambient conditions has been considered critical to enable ‘safe, reliable and superior’ commercial products [1]. The metrology of bio-nanotechnology is thus gaining increasing importance due to the inroad of bio-nano products such as glucose sensors, antimicrobial socks and textiles in the market and the near market and trial stages of products such as nanomedicine for cancer therapy[1]. A quick survey of the current state of the art microscopy and imaging techniques will reveal that there is no single technique applicable to bio-nano metrology, issues related to which area priority research agenda in the area of nanometrology [2]. For example, far field optical vibrational spectroscopy based imaging tools such as Infra Red (IR) and Raman microscopy have been widely used in... + continue reading
Wednesday, June 19 2013: The LANIR Project has a Stand at the EuroNanoForum 2013 being held in Dublin, Ireland. EuroNanoForum is Europe’s largest Nanotechnology and Materials Conference. It takes place every two years and receives funding from the EU’s Seventh Framework Programme for Research and Technological Development. ENF2013 (Dublin, 18-20 June 2013) will focus on the commercialisation of nanotechnologies, exploiting its potential for new applications and taking them further from enabling technologies to end products. Members of the project team will be present at in Dublin at Stand S56 (LANIR). The Project Coordinator Dr. Tofail Syed hosted a visit from an EC delegation on Day 2 of the event. + continue reading
Photo of LANIR 12M meeting participants at Mons, Belgium.
Saturday, February 23 2013: The Month 12 Meeting took place in Mons, Belgium and was hosted by Multitel (14/15 February 2013). The meeting also consisted of a visit of to a partners facility, Laserspec, at Namur, Belgium. The meeting developed action plans for the next 6 months, to be reviewed at the M15 Consortium meeting in June 2013 at the EuroNanoForum2013 in Dublin. It was concluded during the meeting that there will be a delay in some deliverables due to the knock on effect of the late arrival of some key equipment procured for Partner facilities.The meeting also looked to manage risks and address any other knock on issues that may arise. The upcoming reporting during Month 18 was discussed during a presentation on administrative and financial matters. The meeting concluded with the excellent news and confirmation that all major procurement for the project has been completed and... + continue reading
Wednesday, January 2 2013: A framework for far-field infrared absorption microscopy beyond the diffraction limit Abstract: A framework is proposed for infrared (IR) absorption microscopy in the far-field with a spatial resolution below the diffraction limit. The sub-diffraction resolution is achieved by pumping a transient contrast in the population of a selected vibrational mode with IR pulses that exhibit alternating central minima and maxima, and by probing the corresponding absorbance at the same wavelength with adequately delayed Gaussian pulses. Simulations have been carried out on the basis of empirical parameters emulating patterned thin films of octadecyltrichlorosilane and a resolution of 250 nm was found when probing the CH2 stretches at 3.5 μm with pump energies less than ten times the vibrational saturation threshold. Online link to paper: + continue reading
Saturday, November 10 2012:       We have conducted numerical simulations of an original all-fibered mode-locked laser cavity. The results are in good agreement with experience. A few guidelines are then proposed to optimize such type of laser configuration.   Online Link: + continue reading


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