Investigation of a Solid-State Tuning Behavior in Lithium Niobate

Branch, Darren W.; Jensen, Daniel S.; Nordquist, Christopher; Siddiqui, Aleem; Douglas, James Kenneth; Eichenfield, Matthew; Friedmann, Thomas A.

doi:10.1109/tuffc.2019.2944174

Cited by 8 publications

(2 citation statements)

References 34 publications

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“…Although we have focused on a particular set of materials, Sc x Al 1−x N films deposited on SOI wafers, the design concepts we have presented are also applicable to LiNbO 3 , diamond, GaAs, and other low loss acoustic materials that are amenable to phononic information processing [11]. For example, incorporating the nonlinear piezoelectric effect [78] could aid in the design of quantum phononic components in LiNO 3 and GaAs, both of which benefit from prior studies regarding of higher order constitutive properties [79,80]. The 43m point group of GaAs also shares the same symmetry reduction in the third order elastic moduli as the m3m point group of Si [81], so the elastic constitutive model applied here is directly transferred to GaAs.…”

Section: Discussionmentioning

confidence: 99%

Reconfigurable quantum phononic circuits via piezo-acoustomechanical interactions

Taylor¹,

Chatterjee²,

Kindel³

et al. 2021

Preprint

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We show that piezoelectric strain actuation of acoustomechanical interactions can produce large phase velocity changes in an existing quantum phononic platform: aluminum nitride on suspended silicon. Using finite element analysis, we demonstrate a piezo-acoustomechanical phase shifter waveguide capable of producing ±π phase shifts for GHz frequency phonons in 10s of µm with 10s of volts applied. Then, using the phase shifter as a building block, we demonstrate several phononic integrated circuit elements useful for quantum information processing. In particular, we show how to construct programmable multi-mode interferometers for linear phononic processing and a dynamically reconfigurable phononic memory that can switch between an ultra-long-lifetime state and a state strongly coupled to its bus waveguide. From the master equation for the full open quantum system of the reconfigurable phononic memory, we show that it is possible to perform "read" and "write" operations with over 90% quantum state transfer fidelity for an exponentially decaying pulse.

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Section: Discussionmentioning

confidence: 99%

Reconfigurable quantum phononic circuits via piezo-acoustomechanical interactions

Taylor¹,

Chatterjee²,

Kindel³

et al. 2021

Preprint

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“…The successful integration of LiNbO 3 into optoelectronic components and devices includes fiber-based communication, wireless communication, and micro-electromechanical systems (MEMS) 15 , 16 . Hence, researchers have paid a particular attention to the synthesis of LiNbO 3 through different techniques, such as combustion methods 17 , sol–gel, hydrothermal 18 – 20 , wet chemical methods 21 , molten salt methods 22 , 23 , surfactant assisted solution-phase methods 24 , pulsed laser deposition (PLD) and pulse laser ablation (PLA) 25 – 29 , as well as the chemical hydrothermal technique and CBD 30 , 31 . The LN films on Si semiconductors are particularly desirable for the development and production of integrated ferroelectric, photonic, and sensing devices due to their combination of exceptional features.…”

Section: Introductionmentioning

confidence: 99%

Silver decorated lithium niobat nanostructure by UV activation method for silver–lithium niobate/silicon heterojunction device

Salim

Khalef

Fakhri

et al. 2023

Sci Rep

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Lithium niobite (LiNbO3) nanostructure were successfully synthesized by chemical bath deposition method (CBD) and then decorated with silver nitrate (AgNO3) through UV activation method at different immersion durations (5, 15, 25, 35, and 45 s). The silver nanoparticles (AgNPs) effects on the optical and structural properties were studied and analyzed using various scientific devices and technique. X-ray diffraction (XRD) results showed that all the samples have a hexagonal structure with a maximum diffraction peak at the (012), and the existence of silver atoms could be recognized at 2θ = 38.2° which corresponds to the (111) diffraction plane. The optical absorption of nanocomposites depicted the presence of plasma peak related to silver (Ag) at 350 nm. The estimated energy gap from the optical absorption revealed a reduction in the Eg value from (3.97 eV) to (3.59 eV) with the presence of Ag atom. The Photolumincence (PL) peaks were observed at around 355 nm for pure LiNbO3/Si and 358, 360, 363, 371, 476 nm for different immersion durations respectively, in the visible region of the electromagnetic spectrum. The scanning electron microscopy (SEM) study illustrated that with increasing the immersion time, especially at 45 s, a change in the particle morphology was observed (LiNbO3 NRs structure). Atomic force microscopy (AFM) displayed that the surface roughness decreases from 80.71 nm for pure sample to 23.02 nm for the decorated sample as the immersion time is increased. FT-IR manifested a noticeable increase in the intensity of the peaks of samples decorated with AgNPs. Raman spectroscopy elucidated that the peaks shifted to higher intensity due to the plasmonic effect of Ag nanoparticles. Ag–LiNbO3/Si heterojunction nano-devices were fabricated successfully and enhanced the optoelectronic properties in comparison with the pure LiNbO3/Si heterojunction device.

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