Interface nano-confined acoustic waves in polymeric surface phononic crystals
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127 Pisa (Italy)
- JILA and Department of Physics, University of Colorado, 440 UCB, Boulder, Colorado 80309 (United States)
- i-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, Via Musei 41, 25121 Brescia (Italy)
- LAUM, UMR-CNRS 6613, Université du Maine, av. O. Messiaen, 72085 Le Mans (France)
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12, 56127 Pisa (Italy)
The impulsive acoustic dynamics of soft polymeric surface phononic crystals is investigated here in the hypersonic frequency range by near-IR time-resolved optical diffraction. The acoustic response is analysed by means of wavelet spectral methods and finite element modeling. An unprecedented class of acoustic modes propagating within the polymer surface phononic crystal and confined within 100 nm of the nano-patterned interface is revealed. The present finding opens the path to an alternative paradigm for characterizing the mechanical properties of soft polymers at interfaces and for sensing schemes exploiting polymers as embedding materials.
- OSTI ID:
- 22399097
- Journal Information:
- Applied Physics Letters, Vol. 106, Issue 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exploring the Connection between Coherent Acoustic Phonons and Bright-Field Contrast in Ultrafast Electron Microscopy
Phase control of coherent acoustic phonons in gold bipyramids for optical memory and manipulating plasmon–exciton coupling
Tunable ultrasonic phononic crystal controlled by infrared radiation
Journal Article
·
Mon Aug 05 00:00:00 EDT 2019
· Microscopy and Microanalysis
·
OSTI ID:22399097
Phase control of coherent acoustic phonons in gold bipyramids for optical memory and manipulating plasmon–exciton coupling
Journal Article
·
Mon Apr 13 00:00:00 EDT 2020
· Applied Physics Letters
·
OSTI ID:22399097
+1 more
Tunable ultrasonic phononic crystal controlled by infrared radiation
Journal Article
·
Mon Oct 06 00:00:00 EDT 2014
· Applied Physics Letters
·
OSTI ID:22399097
+3 more
Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CRYSTALS
DIFFRACTION
FINITE ELEMENT METHOD
FREQUENCY DEPENDENCE
INTERFACES
MECHANICAL PROPERTIES
NEAR INFRARED RADIATION
PHONONS
POLYMERS
SOUND WAVES
SURFACES
TIME RESOLUTION
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTERIZED SIMULATION
CRYSTALS
DIFFRACTION
FINITE ELEMENT METHOD
FREQUENCY DEPENDENCE
INTERFACES
MECHANICAL PROPERTIES
NEAR INFRARED RADIATION
PHONONS
POLYMERS
SOUND WAVES
SURFACES
TIME RESOLUTION