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Simultaneous Observation of Green Multiphoton Upconversion and Red and Blue NLO Processes from Polymeric Terbium( III ) Complexes
Author(s) -
Wong KaLeung,
Law GaLai,
Kwok WaiMing,
Wong WingTak,
Phillips David Lee
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200500031
Subject(s) - photon upconversion , terbium , excited state , excitation , infrared , second harmonic generation , chemistry , near infrared spectroscopy , blue light , green light , nonlinear optics , photochemistry , optoelectronics , materials science , optics , physics , luminescence , atomic physics , laser , quantum mechanics
Red, green, and blue emissions are observed simultaneously for an organoterbium complex that displays remarkable multiphoton upconversion when excited by a near‐infrared light source. The system undergoes two nonlinear optics processes simultaneously: second and third harmonic generation (SHG: red emission; THG: blue), and four‐photon upconversion (green) for excitation at λ ≈1.26 (see diagram).