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Updated: Jan 8, 2026
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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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Mid Infrared Nonlinear Optical Series A4MV5O15X (A = K, Rb; M = Zn, Cd; X = Cl, Br) with Strong Second Harmonic
Haochen Li1,2, Jianqiao Wang3, Haotian Tian1
1Beijing Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Inorganic Chemistry
|December 23, 2025
Summary
Researchers developed new vanadate nonlinear optical (NLO) crystals, A4MV5O15X, for mid-infrared applications. These materials show strong second-harmonic generation (SHG) and broad transmission, making them promising for advanced optical technologies.
Area of Science:
- Materials Science
- Solid State Chemistry
- Optics
Background:
- Mid-infrared (MIR) nonlinear optical (NLO) crystals are crucial for various academic and industrial applications.
- Developing novel NLO materials with enhanced properties remains a key research area.
Purpose of the Study:
- To synthesize and characterize a new series of vanadate NLO materials with the formula A4MV5O15X.
- To investigate their potential for mid-infrared nonlinear optical applications.
Main Methods:
- Integration of cations with d0 and d10 electronic configurations.
- Synthesis of vanadate compounds: K4CdV5O15Cl, K4CdV5O15Br, Rb4CdV5O15Cl, and Rb4ZnV5O15Br.
- Evaluation of NLO properties, including second-harmonic generation (SHG) response, transmission range, and band gap.
Main Results:
- The synthesized A4MV5O15X compounds exhibit strong SHG responses, ranging from 1.28 to 1.40 times that of AgGaS2 (AGS) at 2.09 μm.
- These materials possess broad transmission ranges from 0.5 to 5.0 μm and moderate band gaps of 2.2-2.3 eV.
- Most compounds, excluding Rb4ZnV5O15Br, display congruent-melting behavior, facilitating the growth of high-quality single crystals.
Conclusions:
- The A4MV5O15X family represents a promising new class of mid-infrared nonlinear optical materials.
- Their combination of strong NLO effects, wide transparency, and potential for crystal growth makes them attractive for advanced optical applications.
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