Search Results - "Bertling, K."
-
1
Collimated beam formation in 3D acoustic sonic crystals
Published in New journal of physics (01-07-2024)“…Abstract We demonstrate strongly collimated beam formation, at audible frequencies, in a three-dimensional acoustic phononic crystal where the wavelength is…”
Get full text
Journal Article -
2
Acoustic flat lensing using an indefinite medium
Published in Physical review. B, Condensed matter and materials physics (13-03-2019)“…Acoustic flat lensing is achieved here by tuning a phononic array to have indefinite medium behaviour in a narrow frequency spectral region along the acoustic…”
Get full text
Journal Article -
3
Terahertz in vivo imaging of human skin: Toward detection of abnormal skin pathologies
Published in APL bioengineering (01-03-2024)“…Terahertz (THz) imaging has long held promise for skin cancer detection but has been hampered by the lack of practical technological implementation. In this…”
Get full text
Journal Article -
4
Demonstration of the self-mixing effect in interband cascade lasers
Published in Applied physics letters (02-12-2013)“…In this Letter, we demonstrate the self-mixing effect in an interband cascade laser. We show that a viable self-mixing signal can be acquired through the…”
Get full text
Journal Article -
5
Lasers - an effective artificial source of radiation for the cultivation of anoxygenic photosynthetic bacteria
Published in Biotechnology and bioengineering (05-06-2006)“…The laser diode (LD) is a unique light source that can efficiently produce all radiant energy within the narrow wavelength range used most effectively by a…”
Get full text
Journal Article -
6
Monitoring the Electrical Properties of the Back Silicon Interface of Silicon-on-Sapphire Wafers
Published in IEEE electron device letters (01-04-2008)“…The density and the electrical nature of the interface traps at the silicon-sapphire interface of silicon-on-sapphire (SOS) MOSFETs have a significant…”
Get full text
Journal Article -
7
Extraction of RF equivalent circuit and semiconductor parameters of SOS MOSFETs from S-Parameter measurements
Published in 2010 Conference on Optoelectronic and Microelectronic Materials and Devices (01-12-2010)“…This paper describes the use of on-wafer measured microwave scattering parameters (S-parameters) for the extraction of RF equivalent circuit elements and…”
Get full text
Conference Proceeding -
8
SOS junctionless MOSFETs vs. inversion channel MOSFETs: Doubling the device speed without changing the technology
Published in Microwave and optical technology letters (01-12-2012)“…This letter compares experimentally the performance of the SOS junctionless MOSFET and the conventional SOS inversion‐channel MOSFET, fabricated in a…”
Get full text
Journal Article -
9
Comparison of SOS MOSFET's Equivalent Circuit Parameters Extracted From LCR Meter and VNA Measurement
Published in IEEE transactions on electron devices (01-01-2012)“…In this paper, we critically compare two techniques for the parametrization of silicon-on-sapphire MOSFETs' high-frequency small-signal equivalent circuit and…”
Get full text
Journal Article -
10
On the feasibility of self-mixing interferometer sensing for detection of the surface electrocardiographic signal using a customized electro-optic phase modulator
Published in Physiological measurement (01-02-2013)“…Optical sensing offers an attractive option for detection of surface biopotentials in human subjects where electromagnetically noisy environments exist or…”
Get more information
Journal Article -
11
Self-mixing laser velocimetry: A realistic model
Published in COMMAD 2012 (01-12-2012)“…The self-mixing laser sensor makes compact, low-cost velocimetry sensing possible. In this work we describe a process for modelling the velocimetry signal that…”
Get full text
Conference Proceeding -
12
Profiling the change in refractive index using the self-mixing effect in lasers
Published in COMMAD 2012 (01-12-2012)“…In this paper we present a novel method for measuring change in real refractive index using the self-mixing effect in a semiconductor laser. The polished flat…”
Get full text
Conference Proceeding -
13
Towards a scanning laser confocal microscope using the self-mixing effect
Published in COMMAD 2012 (01-12-2012)“…This paper investigates the resolution and contrast in a near-infrared VCSEL based interferometric confocal microscope and proposes an architecture that can be…”
Get full text
Conference Proceeding -
14
Comparison of the RF characteristics of inversion channel and depletion channel SOS MOSFETs
Published in COMMAD 2012 (01-12-2012)“…Measurement of small-signal equivalent circuit parameters was carried out to estimate the RF performance of conventional inversion channel and depletion…”
Get full text
Conference Proceeding -
15
Integrated optofluidic flow sensor using the self-mixing effect
Published in COMMAD 2012 (01-12-2012)“…A novel integrated optofluidic flow sensing platform based on the self-mixing effect is presented. The system measures flow of a blood phantom through a 250 μm…”
Get full text
Conference Proceeding -
16
Terahertz Quantum Cascade Laser Feedback Imaging for Cultural Heritage Preservation
Published in 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (01-09-2024)“…We investigated the use of terahertz quantum cascade laser system for imaging the marble in 'Pietra Dura' inlays. We employed laser feedback interferometry to…”
Get full text
Conference Proceeding -
17
Cultivation of photosynthetic bacteria using vertical-cavity surface-emitting lasers
Published in 2005 IEEE LEOS Annual Meeting Conference Proceedings (2005)“…Experimental results demonstrating the cultivation of photosynthetic microorganisms using laser light were presented. The well-studied anoxygenic…”
Get full text
Conference Proceeding -
18
Optical electrocardiograph using self-mixing interferometer technique with a customized electro-optic phase modulator
Published in COMMAD 2012 (01-12-2012)“…This paper describes the proposed optical electrocardiograph (ECG) using self-mixing interferometer technique with a customized electro-optic phase modulator…”
Get full text
Conference Proceeding -
19
Self-mixing signals in terahertz lasers
Published in COMMAD 2012 (01-12-2012)“…Recently demonstrated self-mixing effect in terahertz quantum cascade lasers (QCL) opens new possibilities for detectorless sensing in this range of…”
Get full text
Conference Proceeding -
20
Robust collimated beaming in 3D acoustic sonic crystals
Published 23-01-2023“…We demonstrate strongly collimated beaming, at audible frequencies, in a three-dimensional acoustic phononic crystal where the wavelength is commensurate with…”
Get full text
Journal Article