Cristina Armellini

ORCID: 0000-0003-2004-4361
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About
Contact & Profiles
Research Areas
  • Photonic Crystals and Applications
  • Glass properties and applications
  • Photonic and Optical Devices
  • Luminescence Properties of Advanced Materials
  • Silicon Nanostructures and Photoluminescence
  • Photorefractive and Nonlinear Optics
  • Semiconductor Lasers and Optical Devices
  • Advanced Fiber Laser Technologies
  • Nonlinear Optical Materials Studies
  • Advanced Fiber Optic Sensors
  • Phase-change materials and chalcogenides
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Mesoporous Materials and Catalysis
  • Diamond and Carbon-based Materials Research
  • Transition Metal Oxide Nanomaterials
  • Mechanical and Optical Resonators
  • Thin-Film Transistor Technologies
  • Diatoms and Algae Research
  • Analytical Chemistry and Sensors
  • Lanthanide and Transition Metal Complexes
  • Plasmonic and Surface Plasmon Research
  • Thermal Expansion and Ionic Conductivity
  • Force Microscopy Techniques and Applications
  • Gas Sensing Nanomaterials and Sensors
  • Material Dynamics and Properties

Istituto Nazionale di Fisica Nucleare, Trento Institute for Fundamental Physics And Applications
2009-2023

Fondazione Bruno Kessler
2010-2021

Istituto di Fotonica e Nanotecnologie
2010-2021

National Research Council
2009-2021

Fotonica (Brazil)
2014-2020

Consorzio Roma Ricerche
2018

Institute for Microelectronics and Microsystems
2017

Nello Carrara Institute of Applied Physics
2009

Center for Biomolecular Nanotechnologies
2008

University of Trento
2003

Diamond's nitrogen vacancy (NV) center is an optically active defect with long spin coherence times, showing great potential for both efficient nanoscale magnetometry and quantum information processing schemes. Recently, the formation of buried 3D optical waveguides high quality single NVs in diamond were demonstrated using versatile femtosecond laser-writing technique. However, until now, combining these technologies has been outstanding challenge. In this work, we fabricate laser written...

10.1364/ol.43.003586 article EN Optics Letters 2018-07-19

Diamond’s nitrogen-vacancy (NV) centers show great promise in sensing applications and quantum computing due to their long electron spin coherence time because they can be found, manipulated, read out optically. An important step forward for diamond photonics would connecting multiple NVs together using optical waveguides. However, the inertness of is a significant hurdle fabrication integrated optics similar those that revolutionized silicon photonics. In this work, we waveguides diamond,...

10.3390/mi8020060 article EN cc-by Micromachines 2017-02-17

A large number of AgI-based fast-ion-conducting glasses have been investigated by K-iodine extended x-ray absorption fine structure spectroscopy (EXAFS) measurements at liquid nitrogen temperature. general correlation between the I-Ag distance measured EXAFS and glass activation energy for dc ionic conductivity has found out: with longer distances display higher conductivity, independently from chemical composition their host glassy matrix. This behavior can be related to progressive...

10.1103/physrevlett.101.155901 article EN Physical Review Letters 2008-10-08

The development of efficient luminescent systems, such as microcavities, solid-state lasers, integrated optical amplifiers, and sensors is the main topic in glass photonics. building blocks these systems are glass-ceramics activated by rare-earth ions because they exhibit specific morphologic, structural, spectroscopic properties. Among various materials that could be used nanocrystals to imbedded a silica matrix, tin dioxide presents some interesting peculiarities, e.g., presence allows an...

10.3390/app8081335 article EN cc-by Applied Sciences 2018-08-10

Abstract Sol‐gel derived TiO 2 thin films were prepared by spin‐ coating from an alcoholic solution of titanium isopropoxide. With the aim to develop titania layers suitable for memristive devices, deposited onto test structures based on fused silica quartz substrates patterned with a Ti (5nm)/Pt (50nm) layer. The reported fabrication protocol is development device. Optical, structural, and morphological features samples investigated complementary techniques, such as scanning electron...

10.1002/pssc.201400101 article EN Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics 2014-11-19

Silica-hafnia glass-ceramics waveguides activated by Er<sup>3+</sup> ions were fabricated sol-gel route. X ray diffraction and optical spectroscopy showed that after an adapted heat treatment, the resulting materials a crystalline environment. Analysis of luminescence properties has demonstrated erbium are, at least partially, trapped in phase. Losses measurements different wavelength highlight very low attenuation coefficient indicating this nanostructured material is suitable for single...

10.1117/12.664610 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2006-04-21

A chromatic vectorial strain sensor constituted by hexagonal voids on transparent elastomeric substrate has been successfully fabricated via soft colloidal lithography. Initially a highly ordered 1.6 microns polystyrene spheres monolayer crystal realized wedge-shaped cell method and used as suitable mold to replicate the periodic structure polydimethylsiloxane sheet. The replicated 2D array is characterized high periodicity regularity over large area, evidenced morphological optical...

10.3390/mi9070345 article EN cc-by Micromachines 2018-07-10
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