Excited state absorption in Mn2+ doped phosphate glass

Time-Resolved Spectra of Excited-State Absorption in Er 3+ Doped YAIO3

A pumpand probe-beam technique is used for measuring time-resolved excited-state absorption (ESA) and stimulated-emission (SE) spectra of Er 3+ doped YA103. The Er 3+ 4115/2 --+ 4F7/2 transition of the sample is excited at 488 nm by an excimer laser pumped dye laser. The ESA and SE of broadband xenon ftashlamp light is monitored between 300 and 860 nm by an optical multichannel analyzer (OMA). ...

Spin glass state in doped La2CuO4

The lightly doped La2CuO4 of the high temperature superconducting Cu oxides shows spin glass behavior at very low temperatures, which reflects the effects of quantum fluctuations and frustration upon doping. Recent neutron scattering experiments revealed a formation of spin stripes at the same low concentration of doping. A specific relation between the two important properties of spin glass be...

Enhanced luminescence of Er+3-doped Zinc-Lead-Phosphate Glass embedded SnO2 nanoparticles

Introduction of the nanoparticles in the bulk glass received a large interest due to their versatile application. The composition of Er+3-doped Zinc-Lead-Phosphate glass samples are prepared by melt-quenching technique. The structural and optical properties of phosphate glass have been examined by x-ray diffraction, fie...

Temperature-Dependent Excited State Absorption in DNA and LNA Oligomers Supports an Emerging Model of Excited State Dynamics in DNA

Transient absorption measurements of excited states in DNA and LNA were performed using a femtosecond pump-probe arrangement with excitation at 266 nm and absorption monitored at 400 nm while varying the sample temperature between 5 °C and 70 °C. Samples consisted of adenine monophosphate monomer, polyadenine 12-mer in singlestranded form, and polyadenine 12-mer in hybridized form. Excited stat...

Standoff alpha radiation detection via excited state absorption of air