LiNbO3 integrated system for opto-microfluidic sensing

Real-time impedimetric droplet measurement (iDM)

“…The use of waveguides and apertures is a common practice to avoid the misalignment issues that lead to signal deterioration. 17,19,23 For electrical droplet detection, Niu et al reported a capacitive detection method for counting droplets and for droplet size, velocity and composition detection. 24 Elbuken et al made non-contact planar microelectrodes to measure microfluidic droplet size and velocity using an applicationspecific integrated circuit (ASIC).…”

Opto-Microfluidic System for Absorbance Measurements in Lithium Niobate Device Applied to pH Measurements

“…As a matter of a fact, in the field of integrated optics, LN is a well-known material for its properties that have been exploited for the realization of a wide range of optical devices, such as optical modulators [ 18 ], waveguides [ 19 ], second harmonic generators [ 20 ], photorefractive laser writing [ 21 ], or self-written waveguides [ 22 ]. Furthermore, very recently LN has been also demonstrated as a valuable substrate with which to realize microfluidic circuits, such as droplet generators [ 23 , 24 , 25 ]. Therefore, the combination of the optical capabilities typical of this material with microfluidic tools can offer unprecedented fertile ground for the development of advanced LOCs made using the same monolithic substrate.…”

Распространение Поверхностных Волн Вдоль Границы Фоторефрактивного Кристалла С Нелинейным Дефокусирующим Покрытием

“…В различных оптических устройствах широко применяются различные нелинейные кристаллы, в том числе и фоторефрактивные [1][2][3]. Важное место среди таких исследований занимают проблемы разработки композитных волноводов с особыми требованиями к их характеристикам и возможностью управлению локализацией потоков энергии световых импульсов [4].…”