6 papers
From pore collapse to crystal growth: ultrafast laser-induced stishovite formation in nanoporous silica
Aram Yedigaryan, Mohamed Yaseen Noor, Elena Kachan +4
The crystallization of amorphous solids under ultrafast laser irradiation represents a paradigm of non-equilibrium phase transitions, where the interplay between electromagnetic en…
Cryogenically Enhanced Laser-Induced Amorphous Phase Transitions in Crystalline Silicon
Conrad Kuz, Andy Lee, Shashu Tomar +6
Amorphization of silicon is crucial to applications in photonics, microelectronics and solar cell technologies. Ultrafast lasers have been used to generate amorphous silicon from c…
Highly Efficient Second/Third Harmonic Generation in van der Waals Layered Material AgScP2S6 with Anisotropic Polarization and Temperature Dependence
Mohamed Yaseen Noor, Ryan Siebenaller, Wenhao Liu +12
Single-crystal X-ray diffraction and nonlinear optical measurements, especially second- and third-harmonic generation (SHG/THG) are comprehensively investigated for the van der Waa…
Mimicking the earth core conditions with ultrafast laser materials interaction
Mohamed Yaseen Noor, Aram Yedigaryan, Gabriel Calderon +6
Ultrafast lasers create extreme, non-equilibrium thermodynamic conditions that can transiently reach pressures and temperatures comparable to interior core of the earth. Here we sh…
Single shot multi-time frame imaging of plasmas with a frequency tagged GHz pulse train
Justin Twardowski, Conrad Kuz, Mohamed Yaseen Noor +4
Studying plasma dynamics is crucial for understanding processes like inertial confinement fusion, material damage, and shockwave formation from intense laser or current interaction…
Ferroelectric Epsilon-WO3 Nanoparticles and Its Bipolaron Driven Opto-electronic Properties at Room Temperature
Mohammad M. Rahaman, Jose Flores, Mohamed Y. Noor +6
A unique polymorph of binary tungsten trioxide, the epsilon phase of WO3, has non-centrosymmetric ferroelectric structure, typically stable below -43 degree C in bulk. We have stab…