Webinars

In this webinar, Kıvanç Esat is joined by Dr. Tomás Manzaneque García (TU Delft) to look into the best practices for the characterization of a sensor with lock-in amplifiers. Kıvanç and Tomás cover practical examples including mechanical micro-resonators and optomechanical systems, they show how to set up feedback controllers for maximal precision and review the existing trade-offs between open- and closed-loop operation. A summary of the answers to the questions asked during the live event can be found in this blog post.

In this webinar, Jelena Trbovic and Yury Bugoslavsky review the basics of magnetic materials and present characterization methods taking advantage of lock-in amplifiers. In particular, Jelena and Yury discuss how to distinguish between different types of magnetic materials using magnetization characterization techniques such as those based on the vibrating sample magnetometer (VSM) and AC susceptibility. They also look at how to ensure that lock-in measurements are performed correctly. This blog post offers a summary of the webinar and includes the answers to some of the questions asked during the live event.

Scanning probe microscopy (SPM) offers many powerful techniques to image and control microscopic objects. In this fifth edition of the SPM User Meeting, Zurich Instruments brought together SPM enthusiasts to foster knowledge exchange and networking through scientific talks discussing the latest advances on how to image functional materials (such as perovskites, solar cells and ferroelectrics), through detailed tutorials and with a round table on Kelvin probe force microscopy (KPFM). To discuss your SPM challenge, get in touch with Romain Stomp and Mehdi Alem.

In this webinar, Jelena and Prof. Martino Poggio (University of Basel) look into how macroscopic manifestations of quantum mechanics involving strongly correlated states, e.g. superconductivity and magnetism, are sensitive to the local environment. Nanometer-scale spatial resolution is often required to identify the conditions for the emergence of such macroscopic behaviors. Martino talks about the basic principles and applications of magnetic imaging techniques, including NV-center and nano-wire MFM microscopy, that shed light on magnetization patterns, spin configurations and current distributions. Jelena shows how lock-in amplifiers can be used with such local probing techniques to enhance their sensitivity and contrast. In this blog post, Jelena answers the questions asked during the live session.

Nach einer kurzen Einführung in das Lock-in Verstärker Messverfahren erfahren Sie, wie diese Messtechnik bessere und schnellere Transportmessungen ermöglicht. Anschließend bekommen Sie die Vorteile der Messmethode für den Einsatz zur Impedanzanalyse an Festkörperproben und elektrischen Bauteilen an den beiden folgenden konkreten Beispielen illustriert: DLTS Messungen und die Charakterisierung von DC-Link Kondensatoren. Schauen Sie sich die Folien an und lesen Sie die Antworten auf die gestellten Fragen im Blog Post von Claudius.

In this webinar, Claudius shows how specific settings on lock-in amplifiers and boxcar averagers impact the results of a measurement in optical experiments by looking at the filter function, the filter order and the time constant. He then discusses the relevance of typical properties of electronic measurement devices for optical experiments such as the instrument's dynamic range, measurement bandwidth and signal input noise. Claudius answers the questions asked during the live session in this blog post.

In this webinar, Romain and Mehdi discuss how to address complex detection schemes in scanning probe microscopy (SPM) with the highest possible resolution. They carry out tutorials on Kelvin probe force microscopy (KPFM) and electrical pump-probe methods, and consider a practical example of FM-KPFM measurement using the MFLI Lock-in Amplifier with a FlexAFM microscope. Romain's blog post highlights some important take-home messages, includes useful additional resources, and summarises the answers to the many questions asked during the live event.

In this webinar, Claudius focusses on four prototypical techniques in optics and photonics: tunable diode laser absorption spectroscopy (TDLAS), pump-probe spectroscopy, stimulated Raman scattering (SRS), and carrier-envelope offset (CEO) stabilization. He looks into how to choose the most suitable measurement scheme for your experiment, e.g. a lock-in amplifier or a boxcar averager, and discusses how to save precious measurement time and record high-quality data with the highest signal-to-noise ratio. Claudius answers the questions asked during the live session here; he covers some crucial aspects related to the topic of his webinar in this blog post.