Especially for displays, visible-wavelength lasers are in high demand for a wide range of
applications. Active research and development have been devoted to laser-based displays …

Upconversion (UC) is a fascinating process in which higher energy photons can be emitted
from excitation by lower energy photons. The current challenge remains in downscaling and …

Abstract The 2.1 μm laser, characterized by high absorption coefficients in the atmospheric
window, is important in remote sensing and medical treatment. In pulsed operation, Ho 3+ …

Intense red upconversion emission around 650nm in PbGeO3–PbF2–CdF2 transparent
glass ceramic containing β-PbF2: Ho3+ nanocrystals, is presented. The holmium-doped …

Highly transparent Ho: YAG ceramic was successfully fabricated by solid-state reaction and
vacuum sintering. The optical properties, the microstructure and the laser performance of the …

The present study examined polyvinyl alcohol, PVA, in its pure form without any additives.
We investigated its application as a Schottky barrier device, which demonstrates the novelty …

Ho 3+-doped fluoride nanophase glass ceramics have been synthesized from silica-based
oxyfluoride glass. An intense white emission light is observed by the naked eye under near …

A dual-wavelength collaboratively pumping scheme is proposed to realize the efficient
operation of a 3.9 µm continuous wave Ho: YLF laser. An 888 nm laser is used to excite ions …

Infrared reflection spectroscopic (IRRS), ultraviolet-visible-near infrared (UV-Vis-NIR)
absorption and photoluminescence upconversion properties with special emphasis on the …

The excited state absorption (ESA) spectra of ZBLAN glass activated by trivalent holmium
ions have been measured in a wide spectral range (550–1750 nm) and simulated using …