Photonics webinar series

We are offering 19 recorded webinars in various topics from our summer photonics webinar series and one special additional topic - digital pathology in veterinary education.  Whether you would like to revisit a topic or explore a new one, please feel free to register for as many webinars as you like.  We hope you will find that these webinars are filled with useful and valuable information to increase your knowledge in photonics technology. Please select from the topics below:

Automotive LiDAR

Solid state automotive LiDAR: physics principles, design challenges, and new developments

The automotive industry and academia are actively engaged in applied research developing systems needed to make cars fully autonomous. One such system is LiDAR: it is needed to provide high-definition 3D information of the car’s surroundings at the video rate and up to a distance of about 200 meters. A complete design of a functional LiDAR is proving to be elusive, with beam steering and photodetection presenting the greatest engineering challenge.


Do dim things: why low light imaging capabilities enable advances in research and medicine

The past decade of camera development ushered in a new era of low light imaging that was previously unfathomable. EMCCDs enabled the first precision localization super resolution experiments.

Detectors (General)

Introduction to photodetectors part 1

Photodetectors are essential components in a vast array of modern scientific and commercial instruments and devices; technological progress will make them even more ubiquitous. Understanding their opto-electronic properties, regimes of operation, circuit requirements, and noise characteristics is essential to a practitioner to make a proper photodetector selection for a given application.

Introduction to photodetectors part 2

Photodetectors are essential components in a vast array of modern scientific and commercial instruments and devices; technological progress will make them even more ubiquitous. Understanding their opto-electronic properties, regimes of operation, circuit requirements, and noise characteristics is essential to a practitioner to make a proper photodetector selection for a given application.

Using SNR simulation to select a photodetector

Signal-to-Noise Ratio (SNR) is a statistical figure of merit used to measure the performance of a detector. It is a simple calculation that can compare various detectors to help you choose the right one for your application. Stochastic simulation of detector performance allows for a deeper analysis of the subtle contributions of detector characteristics such as gain, sensitivity, and noise to the SNR in various conditions.

Flow cytometry

Photodetection in flow cytometry

In flow cytometry, the light scattered off an interrogated cell contains information about the cell. The role of a photodetector is to transform this information from light signal to electrical signal. This task makes a photodetector an indispensable component of a functioning flow cytometer. Transformation of information from one domain to another is never lossless. A photodetector, together with the front-end electronics, will always introduce some degree of noise and signal distortion, which impacts ubiquitous-to-flow-cytometry scattered plots. Absent of a perfect photodetector, a practitioner can choose between devices such as a photodiode, avalanche photodiode, photomultiplier tube, or silicon photomultiplier. However, each of these has unique opto-electronic and performance characteristics; therefore, the optimal performance - the smallest impact on the scatter plot – should be the guiding principle in the selection process of the photodetector.

Digital pathology

Roundtable discussion: the role of digital pathology in veterinary education and diagnosis

We invite you to join us for a roundtable discussion with two board certified veterinary pathologists Dr. Kevin Keel and Dr. David Gardiner. Veterinary pathology is considered an early adopter of digital pathology and had always seen the utility of these solutions to enhance education, training, drug discovery, research and diagnoses. Hamamatsu’s Scott Blakely will converse with Dr. Kevin Keel and Dr. David Gardiner in addressing how digital pathology is currently used in an academic and a commercial organization. Also, how best it could be used to train the next generation of veterinary pathologists. They will also explore how the veterinary pathology community could use digital pathology to further expand services.

Infrared products

See beyond visible: short wavelength infrared introduction and applications

Are we seeing what we see? We've been relying on visible light to differentiate objects and identify items, but the surface and its color sometimes could confuse us. Beyond the visible spectrum, many components are transparent in SWIR light that are opaque in visible light. SWIR brings out details beneath the surface you would otherwise miss.

Introduction to infrared detectors

A great deal of information about the physical world, from cosmos to DNA, comes to us in the form of infrared radiation (IR). In addition, man-made systems, such as automotive LiDAR, thermal-vision cameras, or communication networks, rely on IR for successful and optimal operation.

Navigating the MIR market: applications, product options, and developments

Mid-infrared measurements have recently become a hot topic in the photonics industry and for good reason: so much valuable information lies within interactions with longer wavelengths. Capability, cost, and complexity make selecting the proper components a tough balancing act - this presentation aims to give some insight into navigating this space.

Image sensors

Introduction to image sensors

Capturing and recording an image is a fundamental process of data taking in nearly all branches of science and medicine. It has evolved from hand sketching of the scene through imaging based on photo-chemistry of silver compounds to the present-day electronic imaging. Electronic image capture, manipulation of images, and image transmission have become efficient and inexpensive allowing a wide adoption of the techniques outside of science; in areas such as entertainment, communication, education, or retail electronics – the cell phone. CCD and CMOS are the two most commonly used image sensors and they will be the focus of this webinar.

Challenge of circuitry to a successful image sensor implementation

It is only a starting point to the success of acquiring high quality images from an image sensor when you selected an image sensor from a reliable supplier, even though the sensor specifications can meet all of the requirements in your mind.


Extreme ultraviolet light sources supporting next-generation lithography

Moore’s Law continues to drive semiconductor integrated circuit shrinks down to 3 nm and below and an increased feature density without passing the cost to the consumer.

Advances in testing and calibration of modern optical sensors

Electronics used in home and professional settings are increasingly able to sense and respond to their operating environments to assist and delight the user. Optical sensors are one great example of this. Modern electronic devices use sophisticated optical sensors and algorithms to perfect the images on displays, in pictures, and in videos.

Light sources

An encounter with light generating devices

Light-generating devices use many different technologies to generate light over a broad spectrum range and with varying characteristics.


MPPC & SPAD: future of photon counting detectors

Single-photon avalanche photodiode (SPAD) and silicon photomultiplier (SiPM) are related photodetector technologies. Among several similarities, one stands out: each is able to produce a measurable output current in response to a single photon.


General image sensors and spectrometers

There are many spectrometers on the market for various spectroscopy applications. In this presentation, you can learn what’s unique about Hamamatsu’s spectrometers. We are not just a run-of-the-mill supplier; we are uniquely positioned to provide every aspect of spectrometer technology. Hamamatsu is well-known as a quality sensor (CCD, CMOS) provider, and now also for MEMS/MOEMS solutions including transmission gratings and nano-imprinted surface-enhanced substrates (SERS) and micro-spectrometers. We combine these unique technologies to manufacture portable Raman and other optical modules. To cover the NIR, many are turning towards MEMS-FPI tunable filters, the MEMS-FTIR engine, or compact InGaAs-based thin flat spectrometers, forming low-cost handheld spectroscopy solutions.

Understanding spectrometer signal-to-noise ratio

Learn why one of the most important parameters when selecting, and implementing a spectrometer is the signal-to-noise ratio (SNR). While the definition of SNR varies greatly within the photonics industry, this course defines a commonly used methodology and gives practical examples of the same.

Application of Surface Enhanced Raman Spectroscopy (SERS) to sensing

Surface enhanced Raman spectroscopy (SERS) is a vibrational spectroscopic technique that has risen to prominence in sensing owing to its outstanding sensitivity and selectivity. Over the past decade, in particular, SERS has enabled the identification and quantification of a wide array of analytes, including small molecule drugs and toxins, metabolites, and disease biomarkers. It has also enabled to monitor chemical reactions in situ in real time and has recently expanded substantially in the direction of pathogen detection, in which the identification of parasites, bacteria, and viruses has been demonstrated also through rapid, low-cost assays.

X-ray products

X-Ray technology for NDT applications

X-ray technology advancements have steadily increased since they were discovered over 100 years ago. Recent improvements in both x-ray source tubes and detectors are ushering in newfound applicability of this technology as a critical-to-quality tool for non-destructive testing in growing markets such as: 3D metal printing, food inspection, electronic components, and industrial CT.

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