Lithium niobate on insulator: an emerging nanophotonic crystal for optimized light control

• Midhun Murali,
• Amit Banerjee and
• Tanmoy Basu

Beilstein J. Nanotechnol. 2024, 15, 1415–1426, doi:10.3762/bjnano.15.114

• . The large refractive index (indices of refraction of ordinary and extraordinary waves no = 2.21 and ne = 2.14, respectively, at 1550 nm) contrast between ordinary rays and extraordinary waves enables strong reflections in DBR structures, leading to high extinction ratios [9][10]. LiNbO3 exhibits

• effect (largest electro-optic coefficient r33 = 27 pm/V at 1500 nm) [13], enables dynamic control of the reflection spectrum of DBR through applied electric fields, unlocking functionalities such as wavelength filtering and modulation [9][11][12]. LiNbO3 is transparent across a broad spectrum, spanning

• high dielectric constant enables the fabrication of photonic crystals characterized by high-quality factors and minimal losses [17][18][19][20][21][22][23]. The combination of LiNbO3 and TiO2 in multi-stacked 1D PhC holds promise for optical applications [5]. The birefringence and electro-optic

Hexagonal boron nitride: a review of the emerging material platform for single-photon sources and the spin–photon interface

• Stefania Castelletto,
• Faraz A. Inam,
• Shin-ichiro Sato and
• Alberto Boretti

Beilstein J. Nanotechnol. 2020, 11, 740–769, doi:10.3762/bjnano.11.61

Engineering of oriented carbon nanotubes in composite materials

• Razieh Beigmoradi,
• Abdolreza Samimi and
• Davod Mohebbi-Kalhori

Beilstein J. Nanotechnol. 2018, 9, 415–435, doi:10.3762/bjnano.9.41

• are produced by applying a suitable electric field to a piezoelectric material such as LiNbO3. One set of metallic interdigital transducers (IDTs) intercalated on the piezoelectric surface introduces the electric field, generating a SAW displacement amplitude on the order of 10 Å. A solution of CNTs

Atomic layer deposition and properties of ZrO₂/Fe₂O₃ thin films

• Kristjan Kalam,
• Helina Seemen,
• Peeter Ritslaid,
• Mihkel Rähn,
• Aile Tamm,
• Kaupo Kukli,
• Aarne Kasikov,
• Joosep Link,
• Raivo Stern,
• Salvador Dueñas,
• Helena Castán and
• Héctor García

Beilstein J. Nanotechnol. 2018, 9, 119–128, doi:10.3762/bjnano.9.14

• shown in Figure 6. Charge polarization was found to decrease as the amount of Fe2O3 in the films increased (Figure 6). The charge polarization–applied voltage loops, in principle, look similar to those observed earlier for materials grown by ALD and targeted as ferroelectrics, such as LiNbO3 [36][37

Linear and nonlinear optical properties of hybrid metallic–dielectric plasmonic nanoantennas

• Mario Hentschel,
• Bernd Metzger,
• Bastian Knabe,
• Karsten Buse and
• Harald Giessen

Beilstein J. Nanotechnol. 2016, 7, 111–120, doi:10.3762/bjnano.7.13

• process, we demonstrate the ability to selectively and reproducibly fill the gap region of nanoantennas with dielectric nanoparticles made of lithium niobate (LiNbO3) with high efficiency. The linear optical properties of the antennas are modified due to the large refractive index of the material. This

• , depending on its microscopic nonlinearity. Results and Discussion One obvious idea drawn from these earlier experiments is thus to use standard nonlinear materials such as lithium niobate crystals (LiNbO3) or indium tin oxide (ITO) and selectively position them inside the gaps of nanoantennas, as shown in

• , in first-order approximation it will not exhibit a second harmonic response for a normal incident electric field. The LiNbO3 nanocrystals, however, intrinsically break the inversion symmetry due to their crystal structure. The key idea in combining these two systems is thus to boost only the second

A surface acoustic wave-driven micropump for particle uptake investigation under physiological flow conditions in very small volumes

• Florian G. Strobl,
• Dominik Breyer,
• Phillip Link,
• Adriano A. Torrano,
• Christoph Bräuchle,
• Matthias F. Schneider and
• Achim Wixforth

Beilstein J. Nanotechnol. 2015, 6, 414–419, doi:10.3762/bjnano.6.41

• with an interdigital distance of 15 μm. The structure is fabricated by thermal evaporation of 50 nm gold on a LiNbO3 substrate (128°–Y–cut). For the sake of chemical and electrical isolation, the whole chip was covered with a 200 nm thick silicon oxide layer by thermal evaporation of SiO. The micropump

Synthesis of LiNbO₃ nanoparticles in a mesoporous matrix

• Anett Grigas and
• Stefan Kaskel

Beilstein J. Nanotechnol. 2011, 2, 28–33, doi:10.3762/bjnano.2.3

• Anett Grigas Stefan Kaskel Department of Inorganic Chemistry, Dresden University of Technology, Mommsenstraße 6, D-01062 Dresden, Germany 10.3762/bjnano.2.3 Abstract The synthesis of LiNbO3 nanoparticles in SBA-15 is reported for the first time. The preparation of nanoparticles was carried out by

• ). The obtained nanoparticles are spherical with a diameter of approximately 10 nm. Keywords: LiNbO3; ordered mesoporous material; SBA-15; template synthesis; Introduction Lithium niobate is one of the most important ferroelectric materials. At room temperature it has a rhombohedral symmetry and space

• group R3c [1]. It is well known that LiNbO3 has excellent piezoelectrical, pyroelectrical, electro-optical and nonlinear optical properties [2][3]. As a result, there are many valuable applications, for example, in integrated optics or surface acoustic wave devices [4][5]. In the past decade, several