Divalent (Cr2+), trivalent (Cr3+), and tetravalent (Cr4+) chromium ion-doped tunable solid-state lasers operating in the near and mid-infrared spectral regions

A Sennaroglu, Y Morova - Applied Physics B, 2022 - Springer
The chromium ion is among the most widely explored and used laser-active ions.
Depending on the charge state of the laser-active chromium ion in the host, tunable …

Tunable continuous-wave laser operation of Tm3+ ion doped tellurite glass near 2 μm

Y Morova, M Khan, B Denker, B Galagan… - Journal of …, 2022 - Elsevier
We provide an experimental investigation of the absorption saturation and 1.9-μm lasing
characteristics of a bulk Tm 3+: TZLN glass with the host composition of 74TeO 2–12ZnO …

Saturable absorbers based on tetrahedrally coordinated transition-metal ions in crystals

AM Malyarevich, KV Yumashev - Journal of applied spectroscopy, 2009 - Springer
Published data on spectroscopic characteristics of saturable absorbers based on crystals
doped with tetrahedrally coordinated transition-metal ions (Cr 2+, Cr 4+, Cr 5+, V 3+, Cr 2+ …

[HTML][HTML] Nd3+→ Cr4+ energy transfer in co-doped Nd, Cr: Y3Al5O12 garnet transparent ceramics

IR Phillips, RA Osborne, NJ Cherepy, AD Drobshoff… - Optical Materials: X, 2024 - Elsevier
Herein, we quantitatively analyze the Nd 3+→ Cr 4+ energy transfer efficiency in the co-
doped transparent ceramic YAG host and determine that it can be maintained at less than a …

Transition-metal-doped saturable absorbers for passive Q-switching of visible lasers

H Tanaka, C Kränkel, F Kannari - Optical Materials Express, 2020 - opg.optica.org
We experimentally investigate crystals doped with tetravalent chromium or divalent cobalt as
saturable absorbers for passive Q-switching of visible solid-state lasers. The recovery time of …

Low-Threshold Diode-Pumped 2.3- m Tm3+:YLF Lasers

I Yorulmaz, A Sennaroglu - IEEE Journal of Selected Topics in …, 2018 - ieeexplore.ieee.org
We demonstrate low-threshold diode-pumped operation of a continuous-wave Tm 3+: YLF
laser near 2.3 μm and provide a detailed experimental investigation of its lasing …

High peak power, passively Q-switched Yb: YAG/Cr: YAG micro-lasers

M Tsunekane, T Taira - IEEE Journal of Quantum Electronics, 2013 - ieeexplore.ieee.org
A high peak power (> MW), passively Q-switched Yb: YAG/Cr: YAG micro-laser end-pumped
by fiber-coupled 120-W QCW LDs (Repetition rate<; 100 Hz) is developed. The convex …

Investigation of the factors affecting the photothermal therapy potential of small iron oxide nanoparticles over the 730–840 nm spectral region

K Bilici, A Muti, F Demir Duman, A Sennaroğlu… - Photochemical & …, 2018 - Springer
The use of superparamagnetic iron oxide nanoparticles (SPIONs) as a sensitizer in
photothermal therapy (PTT) is relatively new and the origin of such a phenomenon is not …

High-pulse-energy, passively Q-switched Yb-doped fiber laser with AlGaInAs quantum wells as a saturable absorber

JY Huang, WC Huang, WZ Zhuang, KW Su, YF Chen… - Optics letters, 2009 - opg.optica.org
We demonstrate an efficient, high-pulse-energy, passively Q-switched Yb-doped fiber laser
with AlGaInAs quantum wells (QWs) as a saturable absorber. The AlGaInAs QW material is …

Tunable continuous-wave laser operation of Tm3+:BaY2F8 near 2.3 µm

A Muti, I Baylam, M Tonelli, A Sennaroglu - Optics Letters, 2020 - opg.optica.org
We report, for the first time to our knowledge, tunable continuous-wave laser action in the
Tm^ 3+: BaY_2F_8 (BYF) crystal near 2.3 µm. In the experiments, a BYF crystal doped with 3 …