Details

Autor(en) / Beteiligte

• Cadatal-Raduban, Marilou
• Yoshino, Masao
• Yokota, Yuui
• Yoshikawa, Akira
• Hayazawa, Norihiko
• Asano, Daizo
• Shinohara, Keito
• Shimizu, Toshihiko
• Sarukura, Nobuhiko
• Yamanoi, Kohei

Titel

Mid-infrared imaging through up-conversion luminescence in trivalent lanthanide ion-doped self-organizing optical fiber array crystal

Ist Teil von

• Optics letters, 2021-03, Vol.46 (5), p.941-944

Ort / Verlag

United States: Optical Society of America

Erscheinungsjahr

2021

Quelle

OSA_美国光学学会数据库1

Beschreibungen/Notizen

• We propose a scheme for imaging mid-infrared (MIR) wavelengths via pre-excitation-assisted up-conversion luminescence in lanthanide ion ( )-doped Self-organizing Optical FIber Array (SOFIA) crystal. First, near-infrared pre-excitation wavelength excites an electron from the ground state to an excited state of . Next, the MIR wavelength to be imaged promotes this excited electron to a higher-lying energy state. Finally, relaxation of the electron from the higher-lying energy state to the ground state emits the up-conversion luminescence in the visible region, completing the MIR-to-visible wavelength conversion. An analysis of the 4 to 4 intra-configurational energy level transitions in , together with an appropriate selection of the pre-excitation wavelength and the visible luminescence constrained within the 500-700 nm wavelength range, reveals that trivalent erbium ( ), thulium ( ), holmium ( ), and neodymium ( ) can be used to image MIR wavelengths. Our proposed scheme, called MIR imAging through up-Conversion LuminEscence in a SOFIA crystal, will enable the imaging of MIR wavelengths using low-cost optics and readily available silicon-based detectors in the visible spectral region and will open up new possibilities for MIR wavelength detection and imaging.