Polarized micro-Raman studies of femtosecond laser written stress-induced optical waveguides in diamond

Abstract

Understanding the physical mechanisms of the refractive index modulation induced by femtosecond laser writing is crucial for tailoring the properties of the resulting optical waveguides. In this work we apply polarized Raman spectroscopy to study the origin of stress-induced waveguides in diamond, produced by femtosecond laser writing. The change in the refractive index induced by the femtosecond laser in the crystal is derived from the measured stress in the waveguides. The results help to explain the waveguide polarization sensitive guiding mechanism, as well as providing a technique for their optimization.

5 pages, 4 figures

References in corpus (3)

• Inscription of 3D waveguides in diamond using an ultrafast laser
• Evidence of light guiding in ion-implanted diamond
• Softening the ultra-stiff: controlled variation of Young's modulus in single crystal diamond

Cited by in corpus (5)

• Integrated Single Photon Emitters
• Quantum micro-nano devices fabricated in diamond by femtosecond laser and ion irradiation
• An integrated magnetometry platform with stackable waveguide-assisted detection channels for sensing arrays
• Effect of Crystallographic Orientation on the Potential Barrier and Conductivity of Bessel Written Graphitic Electrodes in Diamond
• Laser-Inscribed Diamond Waveguide Resonantly Coupled to Diamond Microsphere