Related Experiment Video
Updated: Jan 20, 2026

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Pb7F12Cl2: a promising infrared nonlinear optical material with high laser damage threshold
1Department of Chemistry, Hubei Normal University, Huangshi, 435002, China. wuqi2011@whu.edu.cn.
Abstract:
This study reports, for the first time, the second-harmonic generation (SHG) property of Pb7F12Cl2 as a promising infrared nonlinear optical (NLO) material. Powder second-harmonic generation (SHG) indicates that the compound exhibits phase-matchable SHG properties, which are 1.6 times stronger than those of KH2PO4 (KDP). The infrared transmission range could reach 20 μm. The UV absorption indicated that the band gap was about 4.5 eV. A preliminary measurement of laser damage threshold (LDT) is about 80 MW cm-2, which is much higher than AgGaS2 (currently commercialized IR NLO material, 5.2 MW cm-2, measured in the same condition), indicating that Pb7F12Cl2 is a potential IR NLO material with high LDT. Theoretical calculations were also performed to elucidate its band structure, electronic configuration and second-order nonlinear coefficients. Particularly, the distinct role of different Pb atoms located in divergent coordinations has also been elaborated using orbital analysis.
Related Concept Videos
Nonlinear Pharmacokinetics: Causes of Nonlinearity
Nonlinear drug absorption can occur when the process is rate-limited by solubility, carrier-mediated transport systems, or saturation of the presystemic gut wall or hepatic metabolism. For instance, high doses of riboflavin...
Nonlinear Pharmacokinetics: Overview
Nonlinearity can arise due to the saturation of plasma protein-binding or...
Nonlinear Pharmacokinetics: Michaelis-Menten Equation
Vmax represents the maximum achievable process rate, while KM, known as the Michaelis constant, signifies the drug concentration at which the process rate reaches half its maximum. This relationship between Vmax, KM, and Cp gives rise to three distinct...
Nonlinear Pharmacokinetics: Role of Transporters
Polymorphisms occurring in drug transporters can alter...
Nonlinear Pharmacokinetics: Bioavailability and Protein-Drug Binding
To quantify the extent of bioavailability, pharmacologists often use a parameter called .
Members Made of Elastoplastic Material
As the bending moment...

