Log in

Relevant bibliographies by topics / High-Frequency acoustic microscopy / Journal articles

To see the other types of publications on this topic, follow the link: High-Frequency acoustic microscopy.

Journal articles on the topic 'High-Frequency acoustic microscopy'

Author: Grafiati

Published: 11 January 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'High-Frequency acoustic microscopy.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Qiao, DongHai, ShunZhou Li, and ChengHao Wang. "High frequency acoustic microscopy with Fresnel zoom lens." Science in China Series G: Physics, Mechanics and Astronomy 50, no. 1 (2007): 41–52. http://dx.doi.org/10.1007/s11433-007-0002-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gailet, Jacqueline. "Scanning Acoustical Microscopy." Microscopy Today 2, no. 5 (1994): 26–28. http://dx.doi.org/10.1017/s155192950006630x.

Full text

Abstract:

One of Olympus' not well known product in the American market is the UH3 Scanning Acoustic Microscope (SAM). This state of the art, highly versatile microscope has many applications from non-destructive imaging to biomedical analysis, to pharmaceutical applications to name a few areas of current industrial interest.The principle behind SAM is quite simple, and uses the basic physical laws of reflection. High frequency sound waves are mechanically produced by a piezoelectric crystal. A high voltage impulse spike starts the crystal vibrating at its preset resonant frequency emitting acoustical p

APA, Harvard, Vancouver, ISO, and other styles

3

Kumon, R. E., I. Bruno, B. Heartwell, and E. Maeva. "Breast tissue characterization with high‐frequency scanning acoustic microscopy." Journal of the Acoustical Society of America 115, no. 5 (2004): 2376. http://dx.doi.org/10.1121/1.4780120.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Anastasiadis, Pavlos, and Pavel V. Zinin. "High-Frequency Time-Resolved Scanning Acoustic Microscopy for Biomedical Applications." Open Neuroimaging Journal 12, no. 1 (2018): 69–85. http://dx.doi.org/10.2174/1874440001812010069.

Full text

Abstract:

High-frequency focused ultrasound has emerged as a powerful modality for both biomedical imaging and elastography. It is gaining more attention due to its capability to outperform many other imaging modalities at a submicron resolution. Besides imaging, high-frequency ultrasound or acoustic biomicroscopy has been used in a wide range of applications to assess the elastic and mechanical properties at the tissue and single cell level. The interest in acoustic microscopy stems from the awareness of the relationship between biomechanical and the underlying biochemical processes in cells and the va

APA, Harvard, Vancouver, ISO, and other styles

5

Murray, Todd W., and Oluwaseyi Balogun. "A novel approach to high‐frequency laser‐based acoustic microscopy." Journal of the Acoustical Society of America 116, no. 4 (2004): 2617. http://dx.doi.org/10.1121/1.4785436.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Brand, Sebastian, Eike C. Weiss, Robert M. Lemor, and Michael C. Kolios. "High Frequency Ultrasound Tissue Characterization and Acoustic Microscopy of Intracellular Changes." Ultrasound in Medicine & Biology 34, no. 9 (2008): 1396–407. http://dx.doi.org/10.1016/j.ultrasmedbio.2008.01.017.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Korkh, Yu V., D. V. Perov, and A. B. Rinkevich. "Detection of subsurface microflaws using the high-frequency acoustic microscopy method." Russian Journal of Nondestructive Testing 51, no. 4 (2015): 198–209. http://dx.doi.org/10.1134/s1061830915040051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Mario, Poschgan, Maynollo Josef, and Inselsbacher Michael. "Inverted high frequency Scanning Acoustic Microscopy inspection of power semiconductor devices." Microelectronics Reliability 52, no. 9-10 (2012): 2115–19. http://dx.doi.org/10.1016/j.microrel.2012.06.064.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Xu, Chunguang, Lei He, Dingguo Xiao, Pengzhi Ma, and Qiutao Wang. "A Novel High-Frequency Ultrasonic Approach for Evaluation of Homogeneity and Measurement of Sprayed Coating Thickness." Coatings 10, no. 7 (2020): 676. http://dx.doi.org/10.3390/coatings10070676.

Full text

Abstract:

A high-frequency ultrasonic approach for testing and evaluating sprayed coating thickness is proposed in this paper. This technique is based on the maximum frequency interval method of the magnitude spectrum of the acoustic pressure reflection coefficient that adopts Welch spectrum estimation. The acoustic propagation model was set up at normal incidence, and the relationship between the maximum frequency interval by the Welch power spectrum and the coating thickness was established to provide the principle for determining coating thickness. According to this principle, the thickness of a seri

APA, Harvard, Vancouver, ISO, and other styles

10

Briggs, Andrew, and Oleg Kolosov. "Acoustic Microscopy for Imaging and Characterization." MRS Bulletin 21, no. 10 (1996): 30–35. http://dx.doi.org/10.1557/s0883769400031614.

Full text

Abstract:

Acoustic microscopy is useful for characterizing with high spatial resolution the elastic structure and properties of an object. A range of techniques is now available for doing this, which enables the user to select the method and instrument that is most appropriate for a particular requirement. For imaging the interior of structures such as electronic-component packaging, an acoustic microscope operating at a relatively modest frequency can provide advanced nondestructive testing. For characterizing surface coatings and layers that may be only a fraction of a micrometer thick, higher frequen

APA, Harvard, Vancouver, ISO, and other styles

11

Liu, Zhong Zhu, Chun Guang Xu, Xin Yu Zhao, and Xiang Hui Guo. "Development of a Practical Scanning Acoustic Microscopy." Advanced Materials Research 468-471 (February 2012): 1128–31. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.1128.

Full text

Abstract:

Scanning acoustic microscopy (SAM) is a powerful non-destructive testing tool used in electronic, material and medical testing area. Commercial SAM products are generally too expensive to be extended to common users. Therefore, a practical SAM system had been developed using high-frequency ultrasonic focus transducers, a wide-band pulse transmitter/receiver, a high-speed data acquisition card, and a high-precision motion system. The SAM system's precision and function can meet the requirement of practical test adequately, and the cost is much lower compared to commercial products. Several kind

APA, Harvard, Vancouver, ISO, and other styles

12

SAFVI, AMJAD A., HAROLD J. MEERBAUM, SCOTT A. MORRIS, CAROL L. HARPER, and WILLIAM D. O'BRIEN. "Acoustic Imaging of Defects in Flexible Food Packages." Journal of Food Protection 60, no. 3 (1997): 309–14. http://dx.doi.org/10.4315/0362-028x-60.3.309.

Full text

Abstract:

A study was conducted using a high-frequency acoustic imaging system: the scanning laser acoustic microscope (SLAM), operating at 100 MHz, to detect packaging defects to within the system's resolution limit of 20 μm. The purpose of the study was to assess the feasibility of high-frequency acoustic imaging to detect and classify channel defects that would have the potential for microbial contamination through visually undetected defects. The SLAM can characterize and image various materials and defects by exploiting the differences in acoustic (mechanical) transmission properties within differe

APA, Harvard, Vancouver, ISO, and other styles

13

Rohrbach, Daniel, and Jonathan Mamou. "Autoregressive Signal Processing Applied to High-Frequency Acoustic Microscopy of Soft Tissues." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 65, no. 11 (2018): 2054–72. http://dx.doi.org/10.1109/tuffc.2018.2869876.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Weiss, Eike C., Pavlos Anastasiadis, Gotz Pilarczyk, Robert M. Lemor, and Pavel V. Zinin. "Mechanical Properties of Single Cells by High-Frequency Time-Resolved Acoustic Microscopy." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 54, no. 11 (2007): 2257–71. http://dx.doi.org/10.1109/tuffc.2007.530.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Hesjedal, T., H. J. Fröhlich, and E. Chilla. "Force microscopy for the investigation of high-frequency surface acoustic wave devices." Applied Physics A: Materials Science & Processing 66, no. 7 (1998): S325—S328. http://dx.doi.org/10.1007/s003390051155.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Peng, Kai, Chun Guang Xu, Xiang Hui Guo, and Ding Guo Xiao. "Detection Resolution of Acoustic Microscopy in Micro-Scale." Applied Mechanics and Materials 455 (November 2013): 448–54. http://dx.doi.org/10.4028/www.scientific.net/amm.455.448.

Full text

Abstract:

Scanning acoustic microscopy (SAM) is a powerful non-destructive testing tool used in the field of electronic package, micro-and nanomaterial and medication. The capability to distinct how minimum of defect is very important to detect the flaw in electronic packages. The detection resolution of SAM depends on the frequency of ultrasonic focus transducers. In this paper, the Multi-Gaussian Beam model to simulate the sound field of the focused transducers is discussed. Mainly the frequency domain imaging algorithm and 2D-Deconvolution method for better image quality and high resolution is analyz

APA, Harvard, Vancouver, ISO, and other styles

17

Moore, Thomas M. "Acoustic microscopy techniques for the inspection of integrated circuit devices and packages." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 966–67. http://dx.doi.org/10.1017/s0424820100129462.

Full text

Abstract:

In the last decade, a variety of characterization techniques based on acoustic phenomena have come into widespread use. Characteristics of matter waves such as their ability to penetrate optically opaque solids and produce image contrast based on acoustic impedance differences have made these techniques attractive to semiconductor and integrated circuit (IC) packaging researchers.These techniques can be divided into two groups. The first group includes techniques primarily applied to IC package inspection which take advantage of the ability of ultrasound to penetrate deeply and nondestructivel

APA, Harvard, Vancouver, ISO, and other styles

18

Endo, Tomio, Yasuo Sasaki, Takeshi Yamagishi, and Mitsugu Sakai. "Determination of Sound Velocities by High Frequency ComplexV(z) Measurement in Acoustic Microscopy." Japanese Journal of Applied Physics 31, S1 (1992): 160. http://dx.doi.org/10.7567/jjaps.31s1.160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sagar, S. Palit, C. Miyasaka, M. Ghosh, and B. R. Tittmann. "NDE of friction stir welds of Al alloys using high-frequency acoustic microscopy." Nondestructive Testing and Evaluation 27, no. 4 (2012): 375–89. http://dx.doi.org/10.1080/10589759.2012.656638.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Morsch, A., A. Quinten, S. Pangraz, W. Arnold, and P. Höller. "Recent progress in high-frequency ultrasonics in non-destructive testing and acoustic microscopy." Nuclear Engineering and Design 128, no. 1 (1991): 83–89. http://dx.doi.org/10.1016/0029-5493(91)90252-d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Saikouk, Hajar, Didier Laux, Emmanuel Le Clézio, et al. "High frequency acoustic microscopy imaging of pellet cladding interface in nuclear fuel rods." Nuclear Engineering and Design 417 (February 2024): 112844. http://dx.doi.org/10.1016/j.nucengdes.2023.112844.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Moore, Michael J., Filip Bodera, Christopher Hernandez, et al. "The dance of the nanobubbles: detecting acoustic backscatter from sub-micron bubbles using ultra-high frequency acoustic microscopy." Nanoscale 12, no. 41 (2020): 21420–28. http://dx.doi.org/10.1039/d0nr05390b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Mnari, M., B. Cros, M. Amlouk, S. Belgacem, and D. Barjon. "Study of the elastic properties of sprayed SnO2 and SnS2 layers." Canadian Journal of Physics 77, no. 9 (2000): 705–15. http://dx.doi.org/10.1139/p99-023.

Full text

Abstract:

SnO2 and SnS2 thin films have been prepared by the spray pyrolysis technique for photovoltaic application purposes and characterized by high-frequency acoustic microscopy (570 MHz).The surface acoustic images reveal contrasts explained by differences in topography according to atomic force microscopy studies. The acoustic signature V(z) of the systemslayer/substrate were modelled and refined to fit with the experimental V(z). The acoustic parameters of the layers were calculated using the results of the final simulation. The values of Young's modulus deduced from the acoustic parameters, 401 a

APA, Harvard, Vancouver, ISO, and other styles

24

Ramanathan, Shriram, and David G. Cahill. "High-resolution picosecond acoustic microscopy for non-invasive characterization of buried interfaces." Journal of Materials Research 21, no. 5 (2006): 1204–8. http://dx.doi.org/10.1557/jmr.2006.0141.

Full text

Abstract:

Non-destructive investigation of buried interfaces at high-resolution is critical for integrated circuit and advanced packaging research and development. In this letter, we present a novel non-contact microscopy technique using ultrahigh frequency (GHz range) longitudinal acoustic pulses to form images of interfaces and layers buried deep inside a silicon device. This method overcomes fundamental limitations of conventional scanning acoustic microscopy by directly generating and detecting the acoustic waves on the surface of the sample using an ultrafast pump-probe optical technique. We demons

APA, Harvard, Vancouver, ISO, and other styles

25

Cruz Valeriano, Edgar, José Juan Gervacio Arciniega, Christian Iván Enriquez Flores, et al. "Stochastic excitation for high-resolution atomic force acoustic microscopy imaging: a system theory approach." Beilstein Journal of Nanotechnology 11 (May 4, 2020): 703–16. http://dx.doi.org/10.3762/bjnano.11.58.

Full text

Abstract:

In this work, a high-resolution atomic force acoustic microscopy imaging technique is developed in order to obtain the local indentation modulus at the nanoscale level. The technique uses a model that gives a qualitative relationship between a set of contact resonance frequencies and the indentation modulus. It is based on white-noise excitation of the tip–sample interaction and uses system theory for the extraction of the resonance modes. During conventional scanning, for each pixel, the tip–sample interaction is excited with a white-noise signal. Then, a fast Fourier transform is applied to

APA, Harvard, Vancouver, ISO, and other styles

26

Guo, Xiang Hui, Chun Guang Xu, Liu Yang, and Kai Peng. "Detection Resolution Analysis of Scanning Acoustic Microscopy Used in Electronic Packaging." Applied Mechanics and Materials 536-537 (April 2014): 272–75. http://dx.doi.org/10.4028/www.scientific.net/amm.536-537.272.

Full text

Abstract:

Scanning Acoustic Microscopy (SAM) has been a powerful non-destructive testing tool used in electronic packaging and material characterization. With the development of 3D electronic packaging, internal dimensions of electronic packaging are getting more and more smaller, and the detection accuracy of existing non-destructive testing technology is far behind the requirements of manufacturing technology. In this study, a set of practical SAM system was developed independently by our Lab. And its detection resolution was analyzed using high frequency focused transducers with center frequency rang

APA, Harvard, Vancouver, ISO, and other styles

27

Weiss, Eike C., Robert M. Lemor, Götz Pilarczyk, Pavlos Anastasiadis, and Pavel V. Zinin. "Imaging of Focal Contacts of Chicken Heart Muscle Cells by High-Frequency Acoustic Microscopy." Ultrasound in Medicine & Biology 33, no. 8 (2007): 1320–26. http://dx.doi.org/10.1016/j.ultrasmedbio.2007.01.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Juntarapaso, Yada, and Richard L. Tutwiler. "Simulations for investigating contrast mechanism of biological cells with high‐frequency scanning acoustic microscopy." Journal of the Acoustical Society of America 127, no. 3 (2010): 1732. http://dx.doi.org/10.1121/1.3383455.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Zinin, P. V., I. B. Kutuza, and S. A. Titov. "Near-Field Defects Imaging in Thin DLC Coatings Using High-Frequency Scanning Acoustic Microscopy." Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques 12, no. 6 (2018): 1285–93. http://dx.doi.org/10.1134/s1027451018050737.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Roshchupkin, D. "Status of X-ray Acoustooptics at the Institute of Microelectronics Technology Russian Academy of Sciences." Journal of Physics: Conference Series 2657, no. 1 (2023): 012002. http://dx.doi.org/10.1088/1742-6596/2657/1/012002.

Full text

Abstract:

Abstract The electrical measurement method, scanning electron microscopy method and high-resolution X-ray diffraction method have been used to investigate the process of the surface acoustic wave (SAW) propagation in a LiNbO3 ferroelectric crystal. Measurement of the amplitude-frequency response provides information on the losses in the acoustoelectronic device during the process of the SAW propagation. The scanning electron microscopy method permits to visualize the SAW on the surface of piezoelectric crystals in the real-time mode and to observe diffraction phenomena in acoustic beam. The X-

APA, Harvard, Vancouver, ISO, and other styles

31

Miyasaka, C., and B. R. Tittmann. "Recent Advances in Acoustic Microscopy for Nondestructive Evaluation." Journal of Pressure Vessel Technology 122, no. 3 (2000): 374–78. http://dx.doi.org/10.1115/1.556195.

Full text

Abstract:

Driven by new demands from industry, the field of acoustic imaging is rapidly evolving new approaches to meet the demands. The current trend toward micro and nano-technology has been pushing the operating frequency of scanning acoustic microscopes (SAM), from MHz to GHz. To become a useful tool for nondestructive evaluation (NDE), the SAM must give high resolution and also maintain reasonable depth of field below the sample surface, while overcoming the effects of surface roughness. A recent trend of needs for the SAM is to enhance resolution for detecting defects (e.g., microcracks, inclusion

APA, Harvard, Vancouver, ISO, and other styles

32

Anastasiadis, Pavlos, Kristina D. A. Mojica, John S. Allen, and Michelle L. Matter. "Detection and quantification of bacterial biofilms combining high-frequency acoustic microscopy and targeted lipid microparticles." Journal of Nanobiotechnology 12, no. 1 (2014): 24. http://dx.doi.org/10.1186/1477-3155-12-24.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

SEEMANN, K. M., F. KRONAST, A. HÖRNER, et al. "ATTENUATION OF SURFACE ACOUSTIC WAVES BY SPIN–WAVE EXCITATIONS IN Co60Fe20B20." SPIN 04, no. 01 (2014): 1440005. http://dx.doi.org/10.1142/s2010324714400050.

Full text

Abstract:

The acousto-magnetic attenuation of surface acoustic waves (SAW) in an Co 60 Fe 20 B 20 exchange spring magnet is evidenced experimentally. By high-resolution magnetic imaging using photo-excitation electron microscopy (XPEEM) and magnetometry measurements, the deflection of the ferromagnet from its equilibrium state is visualized. Along a harmonic oscillator model with damping term, the experimental observation of SAW attenuation is attributed to low-frequency spin wave generation in a magnetic exchange spring. Measuring the SAW attenuation at four eigenfrequencies generated via on-chip highe

APA, Harvard, Vancouver, ISO, and other styles

34

Von Knorring, Terese, Niels Møller Israelsen, Vilde Ung, et al. "Differentiation Between Benign and Malignant Pigmented Skin Tumours Using Bedside Diagnostic Imaging Technologies: A Pilot Study." Acta Dermato-Venereologica 102 (January 26, 2022): adv00634. http://dx.doi.org/10.2340/actadv.v101.571.

Full text

Abstract:

Rapid diagnosis of suspicious pigmented skin lesions is imperative; however, current bedside skin imaging technologies are either limited in penetration depth or resolution. Combining imaging methods is therefore highly relevant for skin cancer diagnostics. This pilot study evaluated the ability of optical coherence tomography, reflectance confocal microscopy, photo-acoustic imaging and high-frequency ultrasound to differentiate malignant from benign pigmented skin lesions. A total of 41 pigmented skin tumours were scanned prior to excision. Morphological features and blood vessel characterist

APA, Harvard, Vancouver, ISO, and other styles

35

Morokov, Egor, Vadim Levin, Tatyana Ryzhova, Evgeny Dubovikov, Yulia Petronyuk, and Igor Gulevsky. "Bending damage evolution from micro to macro level in CFRP laminates studied by high-frequency acoustic microscopy and acoustic emission." Composite Structures 288 (May 2022): 115427. http://dx.doi.org/10.1016/j.compstruct.2022.115427.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Yu, Xiaonan, Hairun Huang, Wanlong Xie, Jiefei Gu, Ke Li, and Lei Su. "Simulation Research on Sparse Reconstruction for Defect Signals of Flip Chip Based on High-Frequency Ultrasound." Applied Sciences 10, no. 4 (2020): 1292. http://dx.doi.org/10.3390/app10041292.

Full text

Abstract:

Flip chip technology has been widely used in various fields. As the density of the solder balls in flip chip technology is increasing, the pitch among solder balls is narrowing, and the size effect is more significant. Therefore, the micro defects of the solder balls are more difficult to detect. In order to ensure the reliability of the flip chip, it is very important to detect and evaluate the micro defects of solder balls. High-frequency ultrasonic testing technology is an effective micro-defect detection method. In this paper, the interaction mechanism between high-frequency ultrasonic pul

APA, Harvard, Vancouver, ISO, and other styles

37

Chen, Jian, Xiaolong Bai, Keji Yang, and Bing-Feng Ju. "Angular measurement of acoustic reflection coefficients by the inversion of V(z, t) data with high frequency time-resolved acoustic microscopy." Review of Scientific Instruments 83, no. 1 (2012): 014901. http://dx.doi.org/10.1063/1.3677327.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Zhang, Yan-nan, Wei Zhou, and Peng-fei Zhang. "Quasi-static indentation damage and residual compressive failure analysis of carbon fiber composites using acoustic emission and micro-computed tomography." Journal of Composite Materials 54, no. 2 (2019): 229–42. http://dx.doi.org/10.1177/0021998319861140.

Full text

Abstract:

In present research, the internal damage evolution and failure characteristics of carbon fiber woven composites under indentation and residual compressive loads were studied by using acoustic emission technology and X-ray micro-computed tomography. Real-time acoustic emission signals originating from internal damage of composites under applied loads were obtained and analyzed by the k-means clustering algorithm. Moreover, the internal damage characteristics were observed by the reconstructed three-dimensional model and the slice images of composite specimens. The results showed that the higher

APA, Harvard, Vancouver, ISO, and other styles

39

Marchetti, Mara, Didier Laux, Fabiola Cappia, et al. "High Frequency Acoustic Microscopy for the Determination of Porosity and Young’s Modulus in High Burnup Uranium Dioxide Nuclear Fuel." IEEE Transactions on Nuclear Science 63, no. 3 (2016): 1520–25. http://dx.doi.org/10.1109/tns.2016.2552241.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Morokov, Egor, Vadim Levin, Andrey Chernov, and Alexander Shanygin. "High resolution ply-by-ply ultrasound imaging of impact damage in thick CFRP laminates by high-frequency acoustic microscopy." Composite Structures 256 (January 2021): 113102. http://dx.doi.org/10.1016/j.compstruct.2020.113102.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Juntarapaso, Yada, Chiaki Miyasaka, Richard L. Tutwiler, and Pavlos Anastasiadis. "Contrast Mechanisms for Tumor Cells by High-frequency Ultrasound." Open Neuroimaging Journal 12, no. 1 (2018): 105–19. http://dx.doi.org/10.2174/1874440001812010105.

Full text

Abstract:

Scanning Acoustic Microscopy (SAM) is a powerful technique for both the non-destructive determination of mechanical and elastic properties of biological specimens and for the ultrasonic imaging at a micrometer resolution. The implication of biomechanical properties during the onset and progression of disease has been established rendering a profound understanding of the relationship between mechanoelastic and biochemical signaling at a molecular level crucial. Computer simulation algorithms were developed for the generation of images and the investigation of contrast mechanisms in high-frequen

APA, Harvard, Vancouver, ISO, and other styles

42

Cao, Pengxin, Xiaoqing Li, and Mingyue Ding. "A Fusion Method for Atomic Force Acoustic Microscopy Cell Imaging Based on Local Variance in Non-Subsampled Shearlet Transform Domain." Applied Sciences 10, no. 21 (2020): 7424. http://dx.doi.org/10.3390/app10217424.

Full text

Abstract:

Atomic force acoustic microscopy (AFAM) is a measurement method that uses the probe and acoustic wave to image the surface and internal structures of different materials. For cellular material, the morphology and phase images of AFAM reflect the outer surface and internal structures of the cell, respectively. This paper proposes an AFAM cell image fusion method in the Non-Subsampled Shearlet Transform (NSST) domain, based on local variance. First, NSST is used to decompose the source images into low-frequency and high-frequency sub-bands. Then, the low-frequency sub-band is fused by the weight

APA, Harvard, Vancouver, ISO, and other styles

43

Kumon, Ronald E., John T. Bonhomme, Corneliu I. Rablau, and Timothy A. Stiles. "Design of a scanning acoustic and photoacoustic microscopy system using open-source hardware and software components." Journal of the Acoustical Society of America 151, no. 4 (2022): A246. http://dx.doi.org/10.1121/10.0011209.

Full text

Abstract:

We have designed and started construction of an instrument that will be able to operate as both a scanning acoustic microscope and photoacoustic microscope. To keep costs down, we are using open-source hardware and software components wherever possible. The system is designed to scan specimens that are approximately 2 cm × 2 cm in lateral dimensions with lateral steps of 1 micron or less. When operating as a scanning acoustic microscope, the specimen will be water-coupled to a high-frequency ultrasound transducer operating in pulse-echo mode. When operating as a photoacoustic microscope, short

APA, Harvard, Vancouver, ISO, and other styles

44

Oberhoff, S., K. Goetz, K. Trojan, M. Zoeller, and J. Glueck. "Application of high frequency scanning acoustic microscopy for the failure analysis and reliability assessment of MEMS sensors." Microelectronics Reliability 64 (September 2016): 656–59. http://dx.doi.org/10.1016/j.microrel.2016.07.108.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Chu, Zhaodong, Lu Zheng, and Keji Lai. "Microwave Microscopy and Its Applications." Annual Review of Materials Research 50, no. 1 (2020): 105–30. http://dx.doi.org/10.1146/annurev-matsci-081519-011844.

Full text

Abstract:

Understanding the nanoscale electrodynamic properties of a material at microwave frequencies is of great interest for materials science, condensed matter physics, device engineering, and biology. With specialized probes, sensitive detection electronics, and improved scanning platforms, microwave microscopy has become an important tool for cutting-edge materials research in the past decade. In this article, we review the basic components and data interpretation of microwave imaging and its broad range of applications. In addition to the general-purpose mapping of permittivity and conductivity,

APA, Harvard, Vancouver, ISO, and other styles

46

Upendran, Anoop, and Krishnan Balasubramanian. "The influence of edge waves in local surface skimming longitudinal wave generation using a focused PVDF transducer." Journal of Applied Physics 132, no. 12 (2022): 124501. http://dx.doi.org/10.1063/5.0100161.

Full text

Abstract:

Acoustic microscopy is extensively used for high-frequency imaging and material characterization. In a focused ultrasonic transducer, the presence of edge waves from the edge of the transducer is usually considered a disadvantage. For high-frequency imaging applications, the edge waves adversely affect the quality of the image. This paper discusses edge wave's influence on generating a surface wave in bulk metal samples using a limited aperture PVDF transducer. Acoustic microscopy-based defocusing experiments are conducted on aluminum, stainless steel, copper, and brass samples. A detailed wav

APA, Harvard, Vancouver, ISO, and other styles

47

Strohm, Eric M., Di Wu, Dina Malounda, Rohit Nayak, Mikhail G. Shapiro, and Michael C. Kolios. "Pressure estimation of ultra-high frequency ultrasound using gas vesicles." Journal of the Acoustical Society of America 156, no. 6 (2024): 4193–201. https://doi.org/10.1121/10.0034438.

Full text

Abstract:

Acoustic microscopy uses ultra-high frequency (UHF) ultrasound transducers over 80 MHz to perform high-resolution imaging. The pressure output of these transducers is unknown, as commercial calibrated hydrophones can measure pressure for transducers with frequencies only up to 80 MHz. This study used gas vesicle nanostructures (GVs) that collapse at 571 kPa to estimate the pressure of UHF transducers at 40, 80, 200, and 375 MHz. Agarose phantoms containing GVs were made, and a baseline ultrasound image was performed at low pressure to prevent GV collapse. Sections within the phantom were scann

APA, Harvard, Vancouver, ISO, and other styles

48

Pham, Van Hiep, Le Hai Tran, Jaeyeop Choi, et al. "Novel Water Probe for High-Frequency Focused Transducer Applied to Scanning Acoustic Microscopy System: Simulation and Experimental Investigation." Sensors 24, no. 16 (2024): 5179. http://dx.doi.org/10.3390/s24165179.

Full text

Abstract:

A scanning acoustic microscopy (SAM) system is a common non-destructive instrument which is used to evaluate the material quality in scientific and industrial applications. Technically, the tested sample is immersed in water during the scanning process. Therefore, a robot arm is incorporated into the SAM system to transfer the sample for in-line inspection, which makes the system complex and increases time consumption. The main aim of this study is to develop a novel water probe for the SAM system, that is, a waterstream. During the scanning process, water was supplied using a waterstream inst

APA, Harvard, Vancouver, ISO, and other styles

49

Jung, Seung-Chan, Wonjun Jang, Byeongji Beom, et al. "Synthesis of Highly Porous Graphene Oxide–PEI Foams for Enhanced Sound Absorption in High-Frequency Regime." Polymers 16, no. 21 (2024): 2983. http://dx.doi.org/10.3390/polym16212983.

Full text

Abstract:

High-frequency noise exceeding 1 kHz has emerged as a pressing public health issue in industrial and occupational settings. In response to this challenge, the present study explores the development of a graphene oxide–polyethyleneimine (GO-PEI) foam (GPF) featuring a hierarchically porous structure. The synthesis and optimization of GPF were carried out using a range of analytical techniques, including Raman spectroscopy, scanning electron microscopy (SEM), Braunauer–Emmett–Teller (BET) analysis, X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FT-IR). To evaluate its acou

APA, Harvard, Vancouver, ISO, and other styles

50

Zhou, Xuhang, Qiulin Tan, Xiaorui Liang, Baimao Lin, Tao Guo, and Yu Gan. "Novel Multilayer SAW Temperature Sensor for Ultra-High Temperature Environments." Micromachines 12, no. 6 (2021): 643. http://dx.doi.org/10.3390/mi12060643.

Full text

Abstract:

Performing high-temperature measurements on the rotating parts of aero-engine systems requires wireless passive sensors. Surface acoustic wave (SAW) sensors can measure high temperatures wirelessly, making them ideal for extreme situations where wired sensors are not applicable. This study reports a new SAW temperature sensor based on a langasite (LGS) substrate that can perform measurements in environments with temperatures as high as 1300 °C. The Pt electrode and LGS substrate were protected by an AlN passivation layer deposited via a pulsed laser, thereby improving the crystallization quali

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!