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We demonstrate the design, fabrication, and characterization of side-coupled airmode nanobeam photonic crystal cavities in silicon-on-insulator platform. Results show that repeatable devices achieve similar high loaded quality factors ($> 10^{4}$ ) and large optical energy ratio in low refractive region. The unload $Q$ -factors of the fabricated cavities are estimated to exceed $10^{5}$ . With...
This paper describes refractive index measurements for verifying a novel optical cavity based sensor using a differential detection method. Two low cost laser diodes at the wavelengths of 780 nm and 850 nm are used. The optical cavity is created by a SU-8 to SU-8 bonding of two silver sputtered glass substrates. The intensities of two lasers are measured by an sCMOS camera after the cavity is filled...
Metamaterials are artificial periodic structures. Their optical properties depend on the design of resonant elements that play the role of atoms in conventional materials. Thus novel and extraordinary properties can be achieved, among which is negative refractive index. At present negative refractive index metamaterials, or left-handed materials, were engineered in optical frequency range that enables...
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