Adaptation of Fluctuating Magnetoacoustic System to External Signals (open access)

Adaptation of Fluctuating Magnetoacoustic System to External Signals

Article studying the influence of microwave signals of different shapes on the magnetoacoustic wave system with a giant nonlinearity in canted antiferromagnet FeBO₃ at room temperature, which is close to its phase transition to the paramagnetic state. Results represent the first observation of the macroscopic quantum statistical phenomenon, Bose-Einstein condensation of magnetoacoustic wave quanta in a wave system with a high level of thermal fluctuations.
Date: June 2, 2021
Creator: Safonov, Vladimir L.; Bas, Derek A.; Berman, Diana; Rostovtsev, Yuri V.; Roberts, James A.; Mcconney, Michael E. et al.
System: The UNT Digital Library
Broadband Absorption in Patterned Metal/Weakly-Absorbing-Spacer/Metal with Graded Photonic Super-Crystal (open access)

Broadband Absorption in Patterned Metal/Weakly-Absorbing-Spacer/Metal with Graded Photonic Super-Crystal

Article studying high light absorption in two devices: a stack of Au-pattern/insulator/Au-film and a stack of Au-pattern/weakly-absorbing-material/Au-film where the Au-pattern was structured in graded photonic super-crystal. Multiple-band absorption, including one near 1500 nm, in a stack of Au-pattern/spacer/Au-film was observed.
Date: April 8, 2021
Creator: Kamau, Steve; Hassan, Safaa; Alnasser, Khadijah; Zhang, Hualiang; Cui, Jingbiao & Lin, Yuankun
System: The UNT Digital Library
Crystallographic texture dependent bulk anisotropic elastic response of additively manufactured Ti6Al4V (open access)

Crystallographic texture dependent bulk anisotropic elastic response of additively manufactured Ti6Al4V

This article identifies a bulk texture effect on elastic anisotropy in laser powder bed fused Ti6Al4V by employing an effective bulk modulus elastography technique coupled with ultrasound shear wave velocity measurement at a frequency of 20 MHz inside the material.
Date: January 12, 2021
Creator: Pantawane, Mangesh V.; Yang, Teng; Jin, Yuqi; Joshi, Sameehan; Dasari, Sriswaroop; Sharma, Abhishek et al.
System: The UNT Digital Library
Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal (open access)

Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal

Article studying 2D twisted moiré photonic crystals without physical rotation and simulating their photonic band gaps in photonic crystals formed at different twisted angles, different gradient levels, and different dielectric filling factors.
Date: September 23, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Hurley, Noah; Cui, Jingbiao & Lin, Yuankun
System: The UNT Digital Library
Resonance modes in moiré photonic patterns for twistoptics (open access)

Resonance modes in moiré photonic patterns for twistoptics

Article studying twistoptics for manipulating optical properties in twisted moiré photonic patterns without physical rotations. The presented approach can lead toward the study of twistoptics for the manipulating of optical properties in moiré patterns with different twist angles.
Date: April 12, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Cui, Jingbiao & Lin, Yuankun
System: The UNT Digital Library
A Review of Diagnostics Methodologies for Metal Additive Manufacturing Processes and Products (open access)

A Review of Diagnostics Methodologies for Metal Additive Manufacturing Processes and Products

This article is a review summarizing and discussing various ex-situ inspections and in-situ monitoring methods, including electron-based methods, thermal methods, acoustic methods, laser breakdown, and mechanical methods, for metal additive manufacturing.
Date: August 30, 2021
Creator: Yang, Teng; Mazumder, Sangram; Jin, Yuqi; Squires, Brian; Sofield, Matthew; Pantawane, Mangesh V. et al.
System: The UNT Digital Library
Ultrasound Imaging by Thermally Tunable Phononic Crystal Lens (open access)

Ultrasound Imaging by Thermally Tunable Phononic Crystal Lens

This article demonstrates the detections and mappings of a solid object using a thermally tunable solid-state phononic crystal lens at low frequency for potential use in future long-distance detection.
Date: July 26, 2021
Creator: Jin, Yuqi & Neogi, Arup
System: The UNT Digital Library