Linear and nonlinear optical properties of metallic nanocrystals in sapphire

P. E. Mota-Santiago; A. Crespo-Sosa; J. L. Jiménez-Hernández; O. Sánchez-Dena; R. C. Fernández-Hernández; J. A. Reyes-Esqueda; A. Oliver

doi:10.1117/12.903344

25 October 2011 Linear and nonlinear optical properties of metallic nanocrystals in sapphire

P. E. Mota-Santiago, A. Crespo-Sosa, J. L. Jiménez-Hernández, O. Sánchez-Dena, R. C. Fernández-Hernández, J. A. Reyes-Esqueda, A. Oliver

Author Affiliations +

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 80113V (2011) https://doi.org/10.1117/12.903344
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

In this paper we report the linear and non-linear optical properties of metallic nano-clusters in α-Al₂O₃ fabricated by ion implantation (from 2 to 8×10¹⁶ ions/cm²). Thereafter, the samples were annealed at temperatures from 600 to 1100 °C in oxidising, reducing atmospheres. Once spherical nano-particles were synthesized, the samples were further irradiated with Si⁺⁺⁺ with different energies and fluences to control the achieved anisotropy. As a result of the ion implantation mostly F⁺ color centers were formed. After thermal annealing they capture an electron to form F centers or combine to form a F₂⁺ center. Also, the photoluminescence signal from Al⁺ interstitials appears. Regarding the non-linear optical response, the spherical-like Au nano-crystals embedded in sapphire show a positive non-linear absorption at 355 nm and negative non-linear absorption at 532 nm, which shows saturation when increasing the incident irradiance. They also present positive non-linear refraction at 532 nm, which is null at 355 nm. For the anisotropic systems, a larger birefringence than natural values was measured in the visible range by ellipsometry means.

Citation Download Citation

P. E. Mota-Santiago, A. Crespo-Sosa, J. L. Jiménez-Hernández, O. Sánchez-Dena, R. C. Fernández-Hernández, J. A. Reyes-Esqueda, and A. Oliver "Linear and nonlinear optical properties of metallic nanocrystals in sapphire", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80113V (25 October 2011); https://doi.org/10.1117/12.903344

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available