Fast photorefractive response in LiNbO3 crystal co-doped with Fe/Sm ions

With K 2 O as flux, near-stoichiometric In:LiNbO 3 (In:SLN) crystals with different indium contents were grown by the top seed solution growth (TSSG) method. Defect structure characteristics and the replacement principle of extrinsic ions were derived from X-ray powder diffraction, differential thermal analysis (DTA), ultraviolet-visible (UV) absorption and infrared (IR) spectrum measurement. Further analysis indicated that the threshold concentration of In 2 O 3 in near-stoichiometric LiNbO 3 crystals were about 1.1 mol%.

show abstract

Defect structure characteristics in near‐stoichiometric In:LiNbO₃ single crystals grown by K₂O‐flux method

Fang¹,

Han

Qiao

et al. 2009

Cryst. Res. Technol.

View full text Add to dashboard Cite

show abstract

Subwavelength Photorefractive Grating in a Thin‐Film Lithium Niobate Microcavity

Hou,

Zhu,

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

Subwavelength gratings play a fundamental and pivotal role in numerous science and applications for wave manipulation, exhibiting distinctive features such as filtering, phase manipulation, and anti‐reflection. However, conventional fabrication methods for ultrasmall periodic structures are constrained by the fundamental optical diffraction limit, making it challenging to produce subwavelength gratings for optics. Here, a novel technique is demonstrated to build a reconfigurable subwavelength photorefractive grating (SPG) in a thin‐film lithium niobate on the platform of an optical microcavity. Such SPGs are optically induced through the photorefractive effect and the subwavelength features originate from the spatial phase modulations of the pump's standing wave. The resulting SPGs lead to the mode splitting of two counter‐propagating modes inside the microcavity, exhibiting an Electromagnetically Induced Transparency (EIT)‐like transmission spectrum. Moreover, the unique subwavelength characteristic of SPGs enables first‐order quasi‐phase‐matching for backward second‐harmonic generation, a long‐standing problem in nonlinear optics. Also, free‐space‐to‐chip vertical nonlinear frequency conversion can be achieved in a similar manner. These results provide a flexible approach toward fabricating subwavelength gratings, which holds significant potential in various applications such as nonlinear frequency conversion, optical communication, sensing, and quantum technologies.

show abstract

Two wave mixing in nonlinear Kerr medium and its dependence on photoconductivity and dielectric properties of the medium

Yadav

Maurya

Yadav

2013

Optik

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Fast photorefractive response in LiNbO3 crystal co-doped with Fe/Sm ions

Cited by 4 publications

References 8 publications

Defect structure characteristics in near‐stoichiometric In:LiNbO₃ single crystals grown by K₂O‐flux method

Defect structure characteristics in near‐stoichiometric In:LiNbO₃ single crystals grown by K₂O‐flux method

Subwavelength Photorefractive Grating in a Thin‐Film Lithium Niobate Microcavity

Two wave mixing in nonlinear Kerr medium and its dependence on photoconductivity and dielectric properties of the medium

Contact Info

Product

Resources

About

Fast photorefractive response in LiNbO3 crystal co-doped with Fe/Sm ions

Cited by 4 publications

References 8 publications

Defect structure characteristics in near‐stoichiometric In:LiNbO3 single crystals grown by K2O‐flux method

Defect structure characteristics in near‐stoichiometric In:LiNbO3 single crystals grown by K2O‐flux method

Subwavelength Photorefractive Grating in a Thin‐Film Lithium Niobate Microcavity

Two wave mixing in nonlinear Kerr medium and its dependence on photoconductivity and dielectric properties of the medium

Contact Info

Product

Resources

About

Defect structure characteristics in near‐stoichiometric In:LiNbO₃ single crystals grown by K₂O‐flux method

Defect structure characteristics in near‐stoichiometric In:LiNbO₃ single crystals grown by K₂O‐flux method