RL
Ruochen Lu
physics.app-pheess.SPcs.SYeess.SYphysics.opticscond-mat.mes-hallcond-mat.mtrl-scieess.IVNiobiumOxides
On Valency
published · living versionsW_ky8qcra3·v1 · currentpublished
13,000-Fold Frequency Down Conversion From 280 MHz to 21 kHz Using Mechanical Frequency Combs
with Ian Anderson, Zihuan Liu, Vivek Tallavajhula, Yen-Chen Wang +2
1 version
Preprints & journals
73 papers in the corpus · 2016–2026High-Velocity Whip-Mode Microresonator in LTOI Unimorph: Measurement Methodology and Large-Signal Characterization2609.19468v1 · Tzu-Hsuan Hsu, Zihuan Liu, Harshvardhan Gupta et al.2026 · 0 citationsarXiv
Toward Ku-Band Surface Acoustic Wave Delay Lines on AlScN-on-Diamond with Decoupled Phase and Group Velocities2609.17460v1 · Tzu-Hsuan Hsu, Kapil Saha, Yuchen Ma et al.2026 · 0 citationsarXiv
Bimorph Lithium Niobate Thickness-Shear Overtone Film Bulk Acoustic Resonator2609.14222v1 · Ziqian Yao, Ian Anderson, Tzu-Hsuan Hsu et al.2026 · 0 citationsarXiv
Periodically Poled Piezoelectric Lithium Niobate Resonator for Piezoelectric Power Conversion.42735124 · Yao, Ziqian, Daniel, Clarissa, Matto, Lezli et al.2026 · 1 citationIEEE transactions on ultrasonics. 2026;73(7):861-870
Nonreciprocal Electro-Optic Intermodal Scattering With Momentum Engineered RF Waves.42845600 · Yim, Jieun, Kim, Gwan In, Workman, Violet et al.2026 · 0 citationsNanophotonics (Berlin, Germany). 2026;15(12):e70170
In-Plane Q Anisotropy of Higher-Order XBARs in 128{\deg}Y-Cut Lithium Niobate2606.16177v2 · Byeongjin Kim, Ian Anderson, Ruochen Lu2026 · 0 citationsarXiv
Q-Enhanced SH-SAW Ladder Filter in Thin-Film Lithium Tantalate Using Bartlett Apodization2605.16586v2 · Taran Anusorn, Tzu-Hsuan Hsu, Yuchen Ma et al.2026 · 0 citationsarXiv
Bimorph Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducers.42735186 · Chulukhadze, Vakhtang, Liu, Zihuan, Yao, Ziqian et al.2026 · 6 citationsIEEE transactions on ultrasonics. 2026;73(5):574-585
High Coupling Tunable Acoustic Resonators in Monolithic Barium Titanate2604.26924v1 · Ian Anderson, Agham Posadas, Alexander A. Demkov et al.2026 · 0 citationsIEEE Trans. Microw. Theory Techn., vol. 74, no. 9, pp. 8332-8342, Sept. 2026
Thin Film AlN Microbolometer for Very Long-Wave Infrared Detection2604.22301v2 · Vivek Tallavajhula, Zarko Sakotic, Ian Anderson et al.2026 · 0 citationsarXiv
Gradient Residual Stress in Transferred Thin-Film Lithium Niobate and Its Compensation Using Periodically Poled Piezoelectric Bilayers2604.20694v2 · Byeongjin Kim, Ian Anderson, Tzu-Hsuan Hsu et al.2026 · 0 citationsarXiv
Nonlinear Characterization of Thin-Film LiNbO3 Acoustic Filters2604.11717v2 · Omar Barrera, Bryan T. Bosworth, Taran Anusorn et al.2026 · 1 citationarXiv
Spurious-Free Lithium Niobate Bulk Acoustic Wave Resonator with Grounded-Ring Electrode2604.06426v2 · Vakhtang Chulukhadze, Kristi Nguyen, Eric Stolt et al.2026 · 0 citationsarXiv
Single-Crystal AlN Wafer-Based Bulk Acoustic Resonators for Piezoelectric Power Conversion2603.19409v1 · Ziqian Yao, Clarissa Daniel, Kaicheng Pan et al.2026 · 0 citationsarXiv
Thermal Endurance of Suspended Thin-Film Lithium Niobate up to 800 ∘C.42735115 · Chaudhari, Mihir, Matto, Lezli, Ahmed, Naveed et al.2026 · 2 citationsIEEE transactions on ultrasonics. 2026;73(3):315-325
Non-reciprocal electrooptic intermodal scattering with momentum engineered RF waves2602.21527v1 · Jieun Yim, Gwan In Kim, Violet Workman et al.2026 · 0 citationsarXiv
Tunable Ferroelectric Acoustic Resonators in Monolithic Thin-Film Barium Titanate2602.16102v1 · Ian Anderson, Agham Posadas, Alexander A. Demkov et al.2026 · 1 citationarXiv
Lattice XBAR Filters in Thin-Film Lithium Niobate2602.14937v1 · Taran Anusorn, Byeongjin Kim, Ian Anderson et al.2026 · 0 citationsarXiv
High-velocity laser Doppler vibrometry measurements on an aluminum nitride bimorph wedge resonator.41644636 · Liu, Zihuan, Niu, Xiaoyu, Vatankhah, Ehsan et al.2026 · 0 citationsCommunications engineering. 2026;5(1)
Uncooled low-noise thin-film optomechanical resonator for thermal sensing on lithium niobate2601.02715v1 · Yue Yu, Ran Yin, Ian Anderson et al.2026 · 0 citationsarXiv
Practical Demonstrations of FR3-Band Thin-Film Lithium Niobate Acoustic Filter Design.41223097 · Anusorn, Taran, Barrera, Omar, Kramer, Jack et al.2025 · 9 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2025;72(12):1650-1662
Radial Mode Lithium Niobate Rosen Transformer2511.17431v1 · Ziqian Yao, Heather Chang, Eric Stolt et al.2025 · 0 citationsarXiv
Residual Stress Anisotropy In Thin-Film Lithium Niobate For Stress-Managed MEMS2511.17474v1 · Byeongjin Kim, Ian Anderson, Tzu-Hsuan Hsu et al.2025 · 1 citationarXiv
Toward mmWave Surface Acoustic Wave Resonators in Lithium Niobate on Silicon Carbide.40960971 · Hsu, Tzu-Hsuan, Matto, Lezli, Campbell, Joshua et al.2025 · 3 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2025;72(11):1522-1532
Phononic Combs in Lithium Niobate Acoustic Resonators2510.20990v2 · Ian Anderson, Jack Kramer, Tzu-Hsuan Hsu et al.2025 · 0 citationsAppl. Phys. Lett. 128, 052201 (2026)
62.6 GHz ScAlN Solidly Mounted Acoustic Resonators2510.11994v2 · Yinan Wang, Byeongjin Kim, Nishanth Ravi et al.2025 · 1 citationAppl. Phys. Lett. 26 January 2026; 128 (4): 042201
Thermal Endurance of Suspended Thin-Film Lithium Niobate up to 800 {\deg}C2509.13568v2 · Mihir Chaudhari, Lezli Matto, Naveed Ahmed et al.2025 · 0 citationsarXiv
An 11.7-GHz ScAlN FBAR Filter: Case Study on Scaling Limits and Challenges2509.03679v3 · Sinwoo Cho, Byeongjin Kim, Lezli Matto et al.2025 · 2 citationsarXiv
A Generalized Acoustic Framework for Multilayer Piezoelectric Platforms.40758507 · Kramer, Jack, Lu, Ruochen2025 · 4 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2025;72(9):1302-1311
Bimorph Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducer2509.00600v2 · Ziqian Yao, Vakhtang Chuluhadze, Zihuan Liu et al.2025 · 5 citationsarXiv
19.3 GHz Acoustic Filter with High Close-in Rejection in Tri-layer Thin-Film Lithium Niobate2506.22411v3 · Omar Barrera, Sinwoo Cho, Jack Kramer et al.2025 · 1 citationarXiv
50 GHz Piezoelectric Acoustic Filter2506.22549v2 · Omar Barrera, Jack Kramer, Lezli Matto et al.2025 · 2 citationsarXiv
Solidly Mounted Scandium Aluminum Nitride on Acoustic Bragg Reflector Platforms at 14-20 GHz.40131755 · Anderson, Ian, Barrera, Omar, Ravi, Nishanth et al.2025 · 10 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2025;72(5):656-662
Thermal Resilience of Suspended Thin-Film Lithium Niobate Acoustic Resonators up to 550 {\deg}C2504.20840v2 · Mihir Chaudhari, Naveed Ahmed, Vivek Tallavajhula et al.2025 · 0 citationsarXiv
Ku-Band AlScn-On-Diamond SAW Resonators with Phase Velocity above 8600 m/s2504.19936v1 · Tzu-Hsuan Hsu, Kapil Saha, Jack Kramer et al.2025 · 2 citations2025 23rd International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers), Orlando, FL, USA, 2025, pp. 172-175
Thin-film scandium aluminum nitride bulk acoustic resonator with high Q of 208 and K2 of 9.5% at 12.5 GHz2504.20014v3 · Sinwoo Cho, Yinan Wang, Eugene Kwon et al.2025 · 1 citationarXiv
High-Q Millimeter-Wave Acoustic Resonators in Thin-Film Lithium Niobate Using Higher-Order Antisymmetric Modes2505.06247v4 · Vakhtang Chulukhadze, Jack Kramer, Tzu-Hsuan Hsu et al.2025 · 4 citations10.1109/LED.2025.3602762
Lithium Tantalate Bulk Acoustic Resonator For Piezoelectric Power Conversion2503.03198v2 · Ziqian Yao, Clarissa Daniel, Eric Stolt et al.2025 · 2 citations10.1109/Transducers61432.2025.11110984
Acoustic resonators above 100 GHz2502.03632v2 · Jack Kramer, Bryan T. Bosworth, Lezli Matto et al.2025 · 18 citationsApplied Physics Letters, 127, 012204 (2025)
52-GHz Surface Acoustic Wave Resonators in Thin-Film Lithium Niobate on Silicon Carbide.40030803 · Campbell, Joshua, Hsu, Tzu-Hsuan, Matto, Lezli et al.2025 · 20 citationsIEEE transactions on ultrasonics, ferroelectrics, and frequency control. 2025;72(2):275-282
Lithium Niobate Resonators for Power Conversion: Spurious Mode Suppression Via an Active Ring2409.15686v1 · Vakhtang Chulukhadze, Eric Allen Stolt, Clarissa Daniel et al.2024 · 2 citationsarXiv
Low-Loss Higher-Order Cross-Sectional Lamé Mode SAW Devices in 10-20 GHz Range2409.14272v2 · Ian Anderson, Tzu-Hsuan Hsu, Vakhtang Chulukhadze et al.2024 · 4 citationsarXiv
18 GHz Solidly Mounted Resonator in Scandium Aluminum Nitride on SiO2/Ta2O5 Bragg Reflector2407.02741v2 · Omar Barrera, Nishanth Ravi, Kapil Saha et al.2024 · 24 citationsJournal of Microelectromechanical Systems, 2024
Acoustic and Electromagnetic Co-Modeling of Piezoelectric Devices at Millimeter Wave2405.19591v2 · Tianyi Zhang, Yen-Wei Chang, Omar Barrera et al.2024 · 8 citationsarXiv
Ultra-Wideband Tapered Transducers in Thin-Film Lithium Niobate on Silicon Carbide2405.08132v1 · Jack Kramer, Tzu-Hsuan Hsu, Joshua Campbell et al.2024 · 1 citationarXiv
Experimental Study of Periodically Poled Piezoelectric Film Lithium Niobate Resonator at Cryogenic Temperatures2403.09822v1 · Jack Kramer, Omar Barrera, Sinwoo Cho et al.2024 · 6 citationsarXiv
C-Band Lithium Niobate on Silicon Carbide SAW Resonator With Figure-of-Merit of 124 at 6.5 GHz2402.16732v4 · Tzu-Hsuan Hsu, Joshua Campbell, Jack Kramer et al.2024 · 30 citationsJournal of Microelectromechanical Systems, 2024, Early Access
23.8-GHz Acoustic Filter in Periodically Poled Piezoelectric Film Lithium Niobate With 1.52-dB IL and 19.4% FBW2402.12194v2 · Sinwoo Cho, Omar Barrera, Jack Kramer et al.2024 · 41 citationsIEEE Microwave and Wireless Technology Letters, vol. 34, no. 4, pp. 391-394, April 2024
Thin-film Lithium Niobate on Insulator Surface Acoustic Wave Devices for 6G Centimeter Bands2402.11508v2 · Tzu-Hsuan Hsu, Joshua Campbell, Jack Kramer et al.2024 · 19 citations2024 IEEE MTT-S International Conference on Microwave Acoustics & Mechanics (IC-MAM), Chengdu, China, 2024, pp. 117-120
Millimeter Wave Thin-Film Bulk Acoustic Resonator in Sputtered Scandium Aluminum Nitride Using Platinum Electrodes2311.13448v1 · Sinwoo Cho, Omar Barrera, Pietro Simeoni et al.2023 · 10 citationsarXiv
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