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Slawomir Piatek
Hamamatsu Corporation

Slawomir Piatek

Webinars
Presented by Slawomir Piatek

October 2024
2D and Time-Gated Imaging with SPAD Arrays
Single photon avalanche photodiode (SPAD) arrays are an emerging imaging technology offering several advantages over traditional imaging with CCDs and CMOS. Most importantly, a pixel in a SPAD array...
December 2022
The Laser-Driven Light Source: Theory, Practice, and Applications
Numerous applications require broadband light sources that have stable output, high brightness, stable spectral composition, and a high degree of spatial coherence. The traditional broadband light...
February 2022
Single-Photon Detectors and Detection: SiPM, SPAD, SNSPD, PMT, TES, and Photon-Resolving Camera Technologies
Increasingly, photodetectors capable of detecting single photons are demanded by modern applications, including quantum computing, time-of-flight lidar, and dark matter detection. These applications...
January 2022
FMCW and TOF Flash Automotive Lidar: Challenges and Prospects
A vision of self-driving cars propels research and development for automotive lidar, vital hardware providing distance and velocity information about car surroundings. Among several lidar...
February 2021
Fourier Transform Infrared (FTIR) Spectrometer: Theory, Practice, and Applications
Fourier transform infrared (FTIR) spectroscopy is a spectroscopic technique that relies on optical interference to generate a spectrum. It enables spectral analysis covering a wide range, 1100 to...
January 2021
Quantum Cascade Lasers: Theory and Applied Use for Gas Monitoring
The birth of lasers was a scientific revolution that changed the world as we know it. Lasers are critical in areas such as lidar/automated driving, surgical instruments, heat treatment, and...
September 2020
Infrared Photodetectors: Theory, Practice, and Applications
A great deal of information about the physical world, from the cosmos to DNA, comes to us in the form of infrared radiation (IR). Human-made systems, such as automotive lidar, thermal-vision cameras,...
May 2020
Raman Spectroscopy: Theory, Practice, and Applications
Raman spectroscopy is a spectroscopic technique that probes vibrational states of molecules using, for example, visible light. It requires very little or no sample preparation and can be employed to...
January 2019
SiPM and SPAD: Emerging Applications for Single-Photon Detection
This webinar will provide a thorough overview of silicon photomultipliers (SiPMs) and single-photon avalanche photodiodes (SPADs) for low-light level photodetection. We will discuss how these sensors...
January 2017
Silicon Photomultiplier: Theory and Practice
The silicon photomultiplier (SiPM), also known as Multi-Pixel Photon Counter (MPPC), is becoming a popular choice of a photodetector in applications where even single photons must be detected. The...

Articles
By Slawomir Piatek

January 2024
Time-Domain Functional NIRS Traces Map of Brain Activity
Functional near-infrared spectroscopy (fNIRS) is a noninvasive optical investigative technique in neurology to map localized brain activity, during which the brain signal is derived from measured...
May 2023
By the Numbers: Photon Counting and Number Resolution
Light transmits information about its emitter (source) and the medium of propagation. If this information is relevant, the light can be detected for analysis — and it has been detected with...
October 2018
Photodetectors in Flow Cytometers
Flow cytometry is a technique that can provide quantitative and qualitative information about biological cells and microparticles. The information is in the light that has interacted with the cells...
August 2017
Detectors: Options for Low-Light Applications
Developed in the early 1990s, the silicon photomultiplier (SiPM) is a solid-state photodetector whose sensitivity to light rivals that of a photomultiplier tube (PMT) in a regime where a few hundred...
June 2015
Selecting a Photodetector: Using WITS$ as a Rough Guide
Light is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about...

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