All-optical generation and detection of acoustic waves for intravascular ultrasound and photoacoustic imaging

2011 ◽  
Author(s):  
Bao-Yu Hsieh ◽  
Sung-Liang Chen ◽  
Tao Ling ◽  
L. Jay Guo ◽  
Pai-Chi Li
Keyword(s):  
Intravascular Ultrasound ◽  
Acoustic Waves ◽  
Photoacoustic Imaging ◽  
Optical Generation ◽  
All Optical

All-optical generation of surface acoustic waves in a silica optical microwire

2014 ◽  
Author(s):  
Jean-Charles Beugnot ◽  
Sylvie Lebrun ◽  
Gilles Pauliat ◽  
Herv Maillotte ◽  
Vincent Laude ◽  
...  
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Optical Generation ◽  
All Optical

All-optical generation of 40Gb/s single sideband signals using a fiber Bragg grating

2010 ◽  
Vol 283 (12) ◽  
pp. 2492-2495
Author(s):  
Miguel V. Drummond ◽  
Rogério N. Nogueira ◽  
Manuel Violas ◽  
Paulo P. Monteiro ◽  
Carola Sterner ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Single Sideband ◽  
Optical Generation ◽  
All Optical

Laser-Based Ultrasound Interrogation of Surface and Sub-Surface Features in Advanced Manufacturing Materials

2021 ◽  
Author(s):  
Kathryn Jinae Harke ◽  
Nicholas Calta ◽  
Joseph Tringe ◽  
David Stobbe
Keyword(s):  
Acoustic Waves ◽  
Surface Defects ◽  
Surface Acoustic Waves ◽  
Acoustic Energy ◽  
Advanced Manufacturing ◽  
Powder Bed ◽  
Surface Features ◽  
Performance Targets ◽  
All Optical ◽  
X Ray Computed

Abstract Structures formed by advanced manufacturing methods increasingly require nondestructive characterization to enable efficient fabrication and to ensure performance targets are met. This is especially important for aerospace, military, and high precision applications. Surface acoustic waves (SAW) generated by laser-based ultrasound can detect surface and sub-surface defects relevant for a broad range of AM processes, including laser powder bed fusion (LPBF). In particular, an all-optical SAW generation and detection configuration can effectively interrogate laser melt lines. Here we report on scattered acoustic energy from melt lines, voids, and surface features. Sub-surface voids are also characterized using X-ray Computed Tomography (CT). High resolution CT results are presented and compared with SAW measurements. Finite difference simulations inform experimental measurements and analysis.

scholarly journals All Optical Generation and Processing of IR UWB Signals

10.5772/7561 ◽  
2009 ◽  
Author(s):  
Y. Ben ◽  
B.I. Lembrikov ◽  
M. Ran ◽  
M. Haridim
Keyword(s):  
Optical Generation ◽  
All Optical

Integrated intravascular ultrasound and photoacoustic imaging scan head

2010 ◽  
Vol 35 (17) ◽  
pp. 2892 ◽  
Author(s):  
Bao-Yu Hsieh ◽  
Sung-Liang Chen ◽  
Tao Ling ◽  
L. Jay Guo ◽  
Pai-Chi Li
Keyword(s):  
Intravascular Ultrasound ◽  
Photoacoustic Imaging

scholarly journals All-optical generation of states for “Encoding a qubit in an oscillator”

2010 ◽  
Vol 35 (19) ◽  
pp. 3261 ◽  
Author(s):  
H. M. Vasconcelos ◽  
L. Sanz ◽  
S. Glancy
Keyword(s):  
Optical Generation ◽  
All Optical
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