Elie Nadal

9 Questions 27 Answers 0 Followers

Questions related from Elie Nadal

What reference material can I use to check the reliability of a Faraday rotation measurement setup?

Hello, I just built a Faraday rotation setup for measurements in the visible range. I want to measure Faraday rotation spectra (wavelength dependance) of magneto-plasmonic nanocomposites. As the...

09 September 2016 6,695 3 View

What is the effect of rapid thermal annealing on polymer thin films?

Dear all, I'm working on on the fabrication of Au/PVA polymer nanocomposite thin films. The synthesis of the Au nanoparticles is realized in-situ by photoreduction of a metallic salt followed by...

07 July 2016 4,560 3 View

Is there a specific method to set a Mach Zehnder interferometer for surface relief grating inscription on polymer thin films?

Hello, I have built a Mach-Zhender interferomer in order to irradiate thin films of polymer (PMMA) with an interference pattern. These polymer thin films are doped with metallic precursors, and...

05 May 2016 6,015 5 View

What initiator should I use to prepare a nanocomposite made of Cobalt nanoparticles dispersed in a PMMA matrix?

Hello everyone, Here is my problem. I'm working with Cobalt nanorods that I'm trying to align in a polymer matrix by applying an external magnetic field. In the end I would like to perform an...

03 March 2016 377 1 View

Could someone explain the mechanism of photo-induced reduction of metallic salt in a polymer solution or a polymer thin film?

I'm currently studying the in-situ formation of nanoparticles in metal salt doped polymer thin films by UV or visible laser irradiation + annealing. In this synthesis, the first step is to...

01 January 2016 7,295 4 View

Could someone explain, in detail, the procedure to realize reflectance measurements using an integrating sphere?

We use a Xenon lamp, a monochromator, an integrating sphere and a photodiode to measure the total reflectivity of thin films (metallic, or organo-metallic nanocomposites thin films). I'm looking...

02 February 2015 1,284 14 View

Is there any way to cancel interference rings in a laser beam?

I'm using a 447 nm laser which happen to have a very bad beam shape at its output that looks like a diffraction pattern (see attached file). As I need a very homogeneous beam for my research...

01 January 2015 2,943 20 View

What are the best solvants and surfactants to deposit gold nanoparticles on glass substrates using spin-coating?

I would like to use spherical nanoparticles (diameter around 30 nm) and deposit them homogeneously on a glass substrate previously cleaned using the RCA method. I have a POLO150i spin-coater. Any...

11 November 2014 5,222 5 View

How can I characterize the spatial organization of metallic nanoparticles embeded in a 100 nm thick polymer film?

The polymer film can be deposited on a glass or Si substrate. The nanoparticles would be Co nanorods with a diameter of 6 nm and a length of approximately 40 to 50 nm.

10 October 2014 4,591 6 View