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Exatas e Naturais INCT – Institutos Nacionais de Ciência e Tecnologia
INCT – Institutos Nacionais de Ciência e Tecnologia
Exatas e Naturais
6) Production and optical characterization of active laser media based on
monocrystallyne fibers and nanopowders.
7) Diagnostic by Imaging and Sensing (Polarization sensitive optical
coherence tomography; Imaging and Sensing at the Molecular Level.
Development of optical techniques to study microcirculation. Synthesis
and uses of semiconductor core – shell quantum dots for in vivo toxicological
studies)
8) Characterization of biological tissues after laser irradiation for development
of new therapeutic methods in Medicine and Dentistry.
tridimensional periodic structures.
Modeling (MOD): Advanced numerical techniques for the analysis of
complex photonic structures.
Systems (SYS): Coherent optical modulation / demodulation techniques
and, optical signal digital processing and switching.
Networks (NET): Resource provisioning techniques able to guarantee
Quality of Service (QoS) for WDM networks applications.
Journal, vol. 45, pp. 3347-3354 (2009).
7. G. Chesini, C.M.B Cordeiro, C.J.S de Matos, M. Fokine, I.C.S. Carvalho,
and J.C. Knight, “All-fiber devices based on photonic crystal fibers with integrated
electrodes,” OSA / Optics Express, vol. 17, pp. 1660-1665 (2009).
8. S.N.M. Mestanza, A.A.G. Von Zuben, and N.C. Frateschi, “Enhanced
side-mode suppression in chaotic stadium microcavity lasers,” Journal of
Applied Physics, vol. 105, pp. 063101-063103 (2009).
9. N. S. Ribeiro, A. L. Toazza, C. M. Gallep, and E. Conforti, “Rise Time
and Gain Fluctuations of an Electrooptical Amplified Switch Based on
Multipulse Injection in Semiconductor Optical Amplifiers,” IEEE Photonics
Technology Letters, vol. 21, n. 12, pp. 769-771 (2009).
10. F.A.C. Garcia, D.A.A. Mello, and H. Waldman, “Feedforward carrier
recovery for polarization demultiplexed Signals with unequal signal to
noise ratios”, OSA / Optics Express, vol. 17, pp. 7958-7969 (2009).
Summary of achievements and perspectives
Summary of achievements and perspectives
Regarding nonlinear optics and modeling, we obtained novel fiber index
profiles that optimize parametric amplifiers. We analyzed and theore-
a) Fabrication and characterization of new photonic glasses and glass–
tically proposed a directional optical coupler embedded in a photonic
ceramics for ultra fast optical processing, optical limiting, substrates for
crystal structure, and driven by a low power external command signal.
optical waveguides, colored displays, lasers and temperature sensors.
We also performed field-trials of fiber-optic wavelength converters in the
b) Chemical and optical characterization of bacterial cellulose with
KyaTera testbed.
large potential for use as headphone membranes, textiles, medical
In connection with semiconductor nanophotonics, we fabricated and Contacts
applications including temporary skin substitution, contact lenses, and
optoelectronic devices (e-paper, OLEDs). c) Development of composites
Nanobiocellulose with silver nanoparticles
investigated InGaAs/GaAs/InGaP stadium microcavity lasers that show
enhanced side-mode suppression.
UNICAMP/IFGW
Departamento de Eletrônica Quântica
formed by conducting polymers and metal nanoparticles for identification
In the research line of photonic band gap structures, we fabricated a Rua Sergio Buarque de Holanda, 777
of RNA and DNA sequence in clinical tests. d) Development of nano-
hollow photonic crystal fiber based on tungsten–tellurite glass with Cidade Universitária “Zeferino Vaz”, Campinas - SP
-optical techniques for manipulation of nanoscopic emitters and their use
a Er3+ ion doped core, capable to be used in optical amplification. CEP 13083-859
for basic studies of cavity quantum electrodynamics. e) Coherent control
of non - linear optical effects applied to optical fibers. Fabrication and National Institute of Science and Technology in Pho-
We also used the Brazilian Synchrotron Light Laboratory facilities to
investigate thoroughly structural changes of two typical photoresists at
email: fotonicom@ifi.unicamp.br
telefone: 19 3521-5435; fax: 19 3521-5428
optical characterization of lasers based on nanocrystalline fibers and
nanopowders. Fabrication of polymeric microstructures integrated with
tonics for Optical Communications – FOTONICOM
molecular level, thus providing understanding on the fundamentals of
the breakup process. Finally, a holey microstructured optical fiber was
glass nanofibers. Fabrication of optical microstructured fibers based on
proposed and fabricated with two electrodes along the fiber. Efficient
heavy - metal ion glasses. f) Studies of dynamic phenomena involving Management committee
polarization control was demonstrated, thus opening new possibilities for
electronic currents in magnetic nanostructures. g) Development of a Hugo L. Fragnito (Coordinator)
low-loss and cost effective modulators.
polarization sensitive optical coherent tomography system. Implementa- Hugo E. Hernández Figueroa (Vice-coordinator)
Regarding systems, subnanosecond electrooptical switching times with
tion of optical techniques for microcirculation studies based on the opti- Newton C. Frateschi
26 dB extinction ratio were obtained by using semiconductor optical
cal speckle with temporal resolution higher than conventional methods Hélio Waldman
amplifiers driven by a multipulse injection current.
such as laser Doppler imaging and Doppler-Optical Coherence Tomogra- João Marcos T. Romano
Regarding networks, we investigated feedforward carrier recovery in
phy. h) Synthesis and uses of semiconductor core – shell quantum dots
coherent polarization diversity receivers. A mechanism for estimating the
for in vivo toxicological studies. Diagnosis by imaging using core-shell Associated Institutions
carrier phase noise was proposed and used to compare the performan-
CdSe-CdS quantum dots. i) Characterization of biological tissues after FEEC/Unicamp; FT/Unicamp; FT/Unicamp; IEAv; IFGW/Unicamp; PUC
ces of system architecture alternatives, including QPSK, regarding their
laser irradiation for the development of new therapeutic methods in
Medicine and Dentistry. Imaging and Sensing at the Molecular Level using
Campinas; UFABC; UFAL; UFBA; UFC; UFPA; UPM; UTFPR
robustness against polarization dependent loss impairments.
multiphoton absorption.
Main researchers
Main publications
Aldário C. Bordonalli; Antônio Sérgio Bezerra Sombra; Arismar Cerqueira
1. Arismar Cerqueira Sodré Jr, “Recent progress and novel applications of
Main publications
Sodré Jr.; Christiano J. S. de Matos; Cristiano M. B. Cordeiro; Cristiano M.
photonic crystal fibers,” Report on Progress in. Physics, vol 73, 024401
1) Photoluminescence enhancement by gold nanoparticles in Eu3+ Gallep; Edmundo R. Mauro Madeira; Eric Alberto de Mello Fagotto; Euné-
(21pp), (2010).
doped GeO2 - Bi2O3 glasses. Applied Physics Letters 94, 101912 (2009). sio A. de Souza; Evandro Conforti; Flávio Caldas da Cruz; Francisco Sir-
2. L.H. Gabrielli, H.E. Hernández-Figueroa, and Hugo L. Fragnito,
Micrograph of a 20 mm radio disk resonator
2) Photo-induced effects in Te20As30Se50 glass films with nonlinear cilli Neto; Fulvio Andrés Callegari; Gélio Mendes Ferreira; Gustavo Souza
“Robustness optimization of fiber index profiles for optical parametric
characterization. Applied Physics Letters 94, 061122 (2009).
Pavani; Helio Waldman; Hugo E. Hernández Figueroa; Hugo Luis Fragnito;
amplifiers,” IEEE/OSA Journal of Lightwave Technology, vol. 27, n 24, pp.
3) Submicron fabrication by local anodic oxidation of germanium thin Hypolito José Kalinowski; J. Diego Marconi; Jandir Miguel Hickmann; João
5571-5579, December (2009).
films. Nanotechnology 20, 345301 (2009).
Marcos T. Romano; Karlo Costa; Leonardo L. Bravo Roger; Lucila Cescato;
3. A. Wirth. L. Jr , M.G. da Silva, A.C. Ferreira, and A.S.B. Sombra, “All-
4) Observation of size dependence in multicolor upconversion in single
Yb3+, Er3+ codoped NaYF4 nanocrystals. Nano Letters 9, 2477 (2009).
5) Crystalline structure of human enamel irradiated with Er,Cr: YSGG
Luiz Carlos Barbosa; Marcelo Luis Francisco Abbade; Marcos Antonio
Ruggieri Franco; Marcos S. Gonçalves; Marli de F. G. Hernández; Michel
Zamboni Rached; Nelson L. S. da Fonseca; Newton C. Frateschi; Ricardo
-optical nonlinear switching cell made of photonic crystal,” Journal of The
Optical Society of América A, vol. 26, n.7, pp. 1661-1667 (2009).
4. J.D. Marconi, Arismar Cerqueira S. Jr., J.T. Robinson, N. Sherwood-Droz,
National Institute of Science and Technology of
Quantum Information – INCT-IQ
laser. Laser Physics Letters 6, 159-162 (2009).
Suyama; Victor Dmitriev; Vitaly Felix Rodriguez Esquerre
Y. Okawachi, H.E. Hernandez-Figueroa, M. Lipson, A.L. Gaeta, and H.L.
6) Nd:YAG Laser in Caries Prevention: A Clinical Trial. Lasers Surgery in
Fragnito, “Performance investigation of microphotonic-silicon devices in Management committee
Medicine, 41, 31-35 (2009).
Main research topics
a field-trial all-optical network,” Optics Communications, vol. 282, n. 5, Amir O. Caldeira (Coordinator)
Follows below our six research lines applied to photonic communications
pp. 849-855, March (2009).
Luiz Davidovich (Vice-coordinator)
Contacts
and their respective study objectives:
5. E.F. Chillcce, E.R. Gonzales, O.L. Alves, C.L. Cesar, I.O. Mazali, and L.C. Belita Koiller
Prof. Cid B. de Araújo
Nonlinear Optics (ONL): Nonlinear optical devices capable to improve the
Barbosa, “Fabrication of photonic optical fibers from soft glasses,” J. Am. Ernesto Fagundes Galvão
Departamento de Física
networks’ transmission and routing capacities.
Ceramic Soc, vol. 93, n. 2, pp. 456–460 (2010).
José W. Tabosa
Universidade Federal de Pernambuco
Semiconductor Nanophotonics (SNP): Fabrication techniques for passive
6. L.A.V.Mendes, L.F. Avila, J.W. Menezes, C.R.R. Pinho, L. Cescato, and Marcelo O. Terra Cunha
50670-901 Recife, PE. Brazil.
and integrated photonic devices.
M.L. Rocco, “Photoresists comparative analysis using soft X-ray synchro- Marcos César de Oliveira
E-mail: cid@df.ufpe.br, cidbdearaujo@yahoo.com.br
Photonic Band Gap Structures (PBG): Devices based on uni, bi, and
tron radiation and time-of-flight mass spectrometry,” European Polymer Paulo Henrique Souto Ribeiro
186 187