Nanoscale pillar hypersonic surface phononic crystals
نویسندگان
چکیده
منابع مشابه
Probing Thermomechanics at the Nanoscale: Impulsively Excited Pseudosurface Acoustic Waves in Hypersonic Phononic Crystals
High-frequency surface acoustic waves can be generated by ultrafast laser excitation of nanoscale patterned surfaces. Here we study this phenomenon in the hypersonic frequency limit. By modeling the thermomechanics from first-principles, we calculate the system's initial heat-driven impulsive response and follow its time evolution. A scheme is introduced to quantitatively access frequencies and...
متن کاملTuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillars
Rights: © 2012 American Physical Society (APS). This is the accepted version of the following article: Graczykowski, B. & Mielcarek, S. & Trzaskowska, A. & Sarkar, J. & Hakonen, Pertti J. & Mroz, B. 2012. Tuning of a hypersonic surface phononic band gap using a nanoscale two-dimensional lattice of pillars. Physical Review B. Volume 86, Issue 8. 085426/1-6. ISSN 1098-0121 (printed). DOI: 10.1103...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.94.094304