Inscription of 3D waveguides in diamond using an ultrafast laser

Abstract

Three dimensional waveguides within the bulk of diamond are manufactured using ultrafast laser fabrication. High intensities within the focal volume of the laser cause breakdown of the diamond into a graphitic phase leading to a stress induced refractive index change in neighboring regions. Type II waveguiding is thus enabled between two adjacent graphitic tracks, but supporting just a single polarization state. We show that adaptive aberration correction during the laser processing allows the controlled fabrication of more complex structures beneath the surface of the diamond which can be used for 3D waveguide splitters and Type III waveguides which support both polarizations.

References in corpus (4)

• Broadband Magnetometry and Temperature Sensing with a Light Trapping Diamond Waveguide
• High-Q optical nanocavities in bulk single-crystal diamond
• Evidence of light guiding in ion-implanted diamond
• Broadband, noise-free optical quantum memory with neutral nitrogen-vacancy centers in diamond

Cited by in corpus (3)

• Polarized micro-Raman studies of femtosecond laser written stress-induced optical waveguides in diamond
• High resolution structural characterisation of laser-induced defect clusters inside diamond
• Thermo-elasto-plastic simulations of femtosecond laser-induced structural modifications: application to cavity formation in fused silica