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Recorded Webinars

Lock-in Amplifier or Boxcar Averager? Choosing the Right Measurement Tool for Periodic Signals

Lock-in Amplifier or Boxcar Averager? Choosing the Right Measurement Tool for Periodic Signals
November 2nd, 2023
Speakers: Gustavo Ciardi

Unlock the potential of your periodic signal measurements in our webinar 'Lock-In Amplifier or Boxcar Averager? Choosing the Right Measurement Tool for Periodic Signals.'

When it comes to analyzing periodic signals, selecting the appropriate measurement tool is crucial to achieving accurate and meaningful results. In this webinar, we delve into the theory behind these two powerful techniques, lock-in amplification and boxcar averaging, to help you make informed decisions in your measurement endeavors.

We gained a deeper understanding of their strengths, weaknesses, and the scientific contexts in which they excel, to empower you with the knowledge needed to maximize your signal-to-noise ratio, ensuring the highest precision in your measurements.

The webinar covered:

- Theory into Practice: Gain a solid understanding of the theory behind Lock-In Amplifiers and Boxcar Averagers, and learn when and where to apply each technique effectively.

- Maximizing Signal-to-Noise Ratio: Discover strategies to optimize your measurements, ensuring the highest precision and clarity in your results.

- Live Demonstration: Witness the power of digital instruments as we showcase real-time applications of both Boxcar Averaging and Lock-In Amplifiers. See how these tools can unlock valuable insights from periodic signals, making your research more efficient and effective.

Read our blog post for answers to the questions from the live audience.

Boost Your Signal-to-Noise Ratio with Lock-in Detection

Boost Your Signal-To-Noise Ratio with Lock-in Detection
September 7th, 2023
Speakers: Heidi Potts

New technologies based on smaller and ever-more powerful devices often require precise measurements of tiny signals that are buried in noise.

In this tutorial, we learned how to use lock-in amplifiers and optimize measurement parameters to get the best signal-to-noise ratio. We discussed three common use cases: optics and photonics experiments, material characterization, and resonator characterization. Finally, we looked at more advanced techniques, such as double modulation and multi-frequency measurements.

Read our blog post for the summary of the event and answers to the questions from the live audience.

Interfaces: How They Make or Break a Nanodevice

Interfaces: How They Make or Break a Nanodevice | Zurich Instruments Webinar
March 29th, 2022

As the size of electronic devices goes down to few nanometers, interfaces become increasingly relevant and often dominate and interfere with a device's performance. Hybrid devices are a particularly good example, because they rely on interfacing materials with different physical properties to control superconductivity, spin or other carrier characteristics in the active parts of the device. The performance of these structures depends critically on their reliable fabrication and interface characterization. In this webinar, Jelena Trbovic and Heidi Potts take you from general interface considerations to nanodevice characterization with lock-in amplifiers: you learn how to set up low-noise measurements and how to characterize devices on ultrafast timescales using RF reflectometry. The answers to the questions asked during the live event are summarized in this blog post.

Quantum Material Characterization for Streamlined Qubit Development

Quantum Material Characterization for Streamlined Qubit Development | Zurich Instruments Webinar
November 11th, 2021

In this webinar, Ed, Jim, Jelena and Clemens look at how lock-in amplifiers offer a prime way to probe and understand material properties relevant for qubit coherence while keeping measurement times and complexity to a minimum. They discuss the basic working principles of semi- and superconducting qubits and demonstrate how to characterize frequency and loss fluctuations in readout resonators, as also summarized in this blog post.

How to Characterize Magnetic Materials Using Lock-in Amplifiers

How to Characterize Magnetic Materials Using Lock-in Amplifiers I Zurich Instruments Webinar
June 29th, 2021
Speakers: Jelena Trbovic, Yury Bugoslavsky (Cryogenic Ltd)

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.

Probing Local Magnetic Field Patterns

Probing Local Magnetic Fields Patterns I Zurich Instruments Webinar
February 11th, 2021
Speakers: Jelena Trbovic

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.

Nanostructure Transport Characterization

Nanostructure Transport Characterization I Zurich Instruments Webinar
May 14th, 2020
Speakers: Jelena Trbovic

In this webinar, Jelena looks into the basic transport characteristics of materials and nanostructures, and discusses how to set up a lock-in amplifier to perform the fastest measurements with the highest signal-to-noise ratio. An exhaustive summary of her answers to the questions asked during the live session is available here.

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