LUCIANO CRUZ - Academia.edu (original) (raw)
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Norwegian University of Science and Technology
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Papers by LUCIANO CRUZ
Generation of bright two-color continuous variable entanglement
Physical review letters, 2005
Optics Express, 2007
We report on continuous-wave second harmonic generation of near infrared Ti:sapphire lasers using... more We report on continuous-wave second harmonic generation of near infrared Ti:sapphire lasers using room temperature critically phasematched, angle-tuned BIBO (bismuth triborate, BiB 3 O 6) crystals, placed both in an external power enhancement cavity and inside the laser resonator. In the first case we generate 70 mW of single-frequency radiation at 423 nm for 330 mW of input power at 846 nm. For intracavity frequency doubling we achieve 690 mW at 423 nm for 7.3 Watts of the Ti:sapphire laser pump power at 532 nm, representing a conversion efficiency of 9.5% from 532 to 423 nm. These tunable blue-violet systems are particularly attractive for laser cooling and trapping of alkaline-Earth atoms.
We have measured the photon statistics of pump and probe beams after interaction with Rb atoms in... more We have measured the photon statistics of pump and probe beams after interaction with Rb atoms in a situation of Electromagnetically Induced Transparency. Both fields present super-poissonian statistics and their intensities become correlated, in good qualitative agreement with theoretical predictions in which both fields are treated quantum-mechanically. The intensity correlations measured are a first step towards the observation of entanglement between the fields.
Generation of bright two-color continuous variable entanglement
Physical review letters, 2005
Optics Express, 2007
We report on continuous-wave second harmonic generation of near infrared Ti:sapphire lasers using... more We report on continuous-wave second harmonic generation of near infrared Ti:sapphire lasers using room temperature critically phasematched, angle-tuned BIBO (bismuth triborate, BiB 3 O 6) crystals, placed both in an external power enhancement cavity and inside the laser resonator. In the first case we generate 70 mW of single-frequency radiation at 423 nm for 330 mW of input power at 846 nm. For intracavity frequency doubling we achieve 690 mW at 423 nm for 7.3 Watts of the Ti:sapphire laser pump power at 532 nm, representing a conversion efficiency of 9.5% from 532 to 423 nm. These tunable blue-violet systems are particularly attractive for laser cooling and trapping of alkaline-Earth atoms.
We have measured the photon statistics of pump and probe beams after interaction with Rb atoms in... more We have measured the photon statistics of pump and probe beams after interaction with Rb atoms in a situation of Electromagnetically Induced Transparency. Both fields present super-poissonian statistics and their intensities become correlated, in good qualitative agreement with theoretical predictions in which both fields are treated quantum-mechanically. The intensity correlations measured are a first step towards the observation of entanglement between the fields.