• Join our team! Become a member of GON.
  • Our multi-user laboratories attend to more than 10 research groups of the Federal University of Alagoas.
  • We also develop microfabrication processes by direct laser writing.
  • Our material characterization labs possess some exclusive equipment in the whole South America. You are welcome to visit our labs and see it for yourself.
  • We use a scanning electron microscope with integrated EDX and an anti-vibration work station to obtain high-resolution surface images.
  • We also develop research activities involving linear and non-linear optical phenomena.
  • Our lab for samples preparation is very well equipped: chemistry lab with two fume hoods.
  • Our scanning multiprobe microscope allows the use of different techniques (AFM, SNOM, EFM…) in order to obtain high resolution tridimensional imagery.
  • The optics lab includes the study of the complex light, which corresponds to structuring the amplitude and phase of the coherent light.
  • Join our team! Be a part of GON.

Welcome to GON's home-page.

Here you will find details about the research activities developed by our group.

The Optics and Nanoscopy Group (GON) was founded in 2014 and is a research group part of the Post-graduate Programs in PHYSICS (CAPES grade 5 ) and in MATERIALS (CAPES grade 4) of the Federal University of Alagoas.

We are always interested in hearing from fellow scientists wishing to work with us or potential students wishing to study with us.

Research Areas


Exploring the limits of physical resolution and understanding the behavior and properties of materials at the nanoscale are the central aims of the....

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he GON develops several research activities involving the use of optics and lasers in the most diverse fields of knowledge. This field includes...

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Laser Microfabrication

High quality large scale fabrication of cellular scaffolds, with three-dimensional resolution comparable to cell size, is an important task to enable...

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Materials Characterization

We specialize in state-of-the-art material characterization methodologies and techniques. The researches are conducted to evaluate the....

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Laboratory Facilities

Sample preparation lab

Our lab for samples preparation is very well equipped: chemistry lab with two...

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Spectroscopy lab

Our Spectroscopy Facility offers a wide range of analytical instrumentation for...

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X-ray diffraction and SEM

We have X-ray and SEM laboratories that are maintained as multi-user facilities...

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SPM and Raman Confocal

This lab provides a number of different scanning probe microscopy techniques...

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Highlighted Papers

In this study, we report the effect of the proportion of CdSe/CdS ultrasmall quantum dots (USQDs) conjugated on reduced graphene oxide (rGO). The proposed conjugation used a bond between the hydroxyl groups of the USQDs and the carboxylic groups of the rGO. The formation of the CdSe/CdS-rGO nanocomposites was confirmed by ...."
Nanotechnology, 33, 235708, (2022)

Light scattering by disordered media is a ubiquitous effect. After passing through them, the light acquires a random phase, masking or destroying associated information. Filtering this random phase is of paramount importance to many applications, such as sensing, imaging, and optical communication, to cite a few, and it is commonly..."
Optics Letters 46, 3905 (2021)

In this study, we evaluated the in vitro antitumor activity of dialkylamino-1,4-naphthoquinones (1a–n) toward human glioblastoma multiforme cells (GBM02). All the derivatives inhibited GBM02 cell viability except for compounds 1a, 1b, and 1c. In contrast, compounds 1d, 1e, 1f, 1g, 1h, 1k, and 1n were the most effective ones...."
New J. Chem., 46, 4587, (2022)

We used a direct laser writing technique to build annular waveguides inside a glassy blade. These waveguides have shown the capability of generating orbital angular momentum beams with different topological charges in the same structure. Here we demonstrate that, after choosing suitable waveguide parameters, ..."
Phys. Rev. A 104, L061501, (2021)