Efficient 1400–1600 nm Circularly Polarized Luminescence from a Tuned Chiral Erbium Complex

Abstract

Novel chiral Er complexes based on both enantiomers of extended i PrPyBox (2,]pyridine) show strong near-infrared circularly polarized luminescence (CPL) within the 1400 to 1600 nm spectral region under 450 nm irradiation. CPL activity in this region, despite being particularly rare, would open the way to potential applications in the domain, e.g., of fiber-optic telecommunications and free-space long-distance optical communications employing circularly polarized light. Moreover, the long wavelength excitation is advantageous for applications in the field of (circularly polarized) microscopy and bioimaging.

Circularly polarized luminescence from Tb(iii) interacting with chiral polyether macrocycles

“…The study of chiral lanthanide complexes is a strong and developing field of research. 1–26 These complexes often display interesting circularly polarized luminescence (CPL) properties and, 27 for this reason, applications can be found in key research areas such as in bioanalytical assays and imaging 28–39 or circularly polarized OLEDs. 40–44 To promote efficient chiroptical properties, polydentate monoligands, such as triazacyclononane or tetraazacyclododecane, are usually employed.…”

Trendbericht Anorganische Chemie 2023: Nebengruppen, Bioanorganik und Koordinationschemie

“…Ausgehend von nur 2 mg 249 Cf erzeugte ein Team um Batista, Evans, Gaunt, Kozimor und Yang ein Metallocen des Californiums. 13) In dem Komplex ist das Actinoid pseudo-tetraedrisch von zwei Cp tet und zwei Chloridionen koordi- Ung und Mitarbeiter:innen 16) wie auch Di Bari, Zinna und Mitarbeiter:innen 17) beschrieben die ersten beiden Beispiele für zirkular polarisierte Lumineszenz (CPL) von Erbiumkomplexen und allgemein für CPL bei Wellenlängen oberhalb von 1200 nm. Der Binolat-und der PyBox-Komplex (Ung beziehungsweise Di Bari, Abbildungen 5a und 5b) erreichten g lum -Werte von 0,47 beziehungsweise 0,33 im Bereich um 1550 nm, der für die optische Telekommunikation wichtig ist.…”

Theoretical and experimental analysis of circularly polarized luminescence spectrophotometers for artifact-free measurements using a single CCD camera

“…On our side, we have also performed CPL measurements on a single camera by spatially separating the luminescence according to two polarization-encoded optical paths 21 . Recent works 22 , 23 also show that recording successively two polarization-encoded spectra is enough to extract the CPL of near-infrared emitters with g lum ≥ 0.1.…”