Photometry of Active Galactic Nuclei and Quasars: Methods, Surveys, and Insights
Active galactic nuclei (AGN) and quasars are among the brightest things out there in the universe. Supermassive black holes at […]
Active galactic nuclei (AGN) and quasars are among the brightest things out there in the universe. Supermassive black holes at […]
Differential photometry sits at the heart of modern astronomy, letting us measure how a star’s brightness shifts over time with
Recent advancements in AMOLED display tech have finally started to tackle one of the trickiest problems out there—getting consistent, stable
Exoplanet research has exploded lately as astronomers chase down worlds outside our solar system. One of the best ways to
Adaptive optics has really changed how astronomers measure light from distant stars and galaxies. By correcting for the blurring caused
Neutral density filters play a vital role in managing light during photometric measurements. They reduce light intensity without changing its
High-speed photometry lets us peek into the rapid changes happening right on the surfaces of stars. By snapping up light
Large sky surveys depend on photometric systems to capture how celestial objects shine at different wavelengths. Astronomers use these systems
Starlight never reaches a telescope exactly as it left the star. As it travels through Earth’s atmosphere, molecules and tiny
Photometry sits at the heart of how we figure out changes in Earth’s climate. By measuring light from the Sun,
Photon counting has become a cornerstone in the design of ultra-sensitive photometers, giving us a way to measure extremely low
Measuring solar irradiance is at the heart of figuring out how much energy from the sun actually hits the Earth’s
The Internet of Things (IoT) keeps growing, and so do autonomous tech and wearables. All of this pushes us to
The telecommunications landscape is about to change in a big way, thanks to **hollow-core fiber (HCF)** technology. Instead of sending
Photometers play a crucial role in remote sensing by measuring light with impressive precision. Scientists rely on them to understand
Measuring light sounds straightforward, right? But if you want accuracy across different instruments or even different countries, you really need
Lighting terms pop up on packaging all the time, but honestly, they can get confusing fast. Lumens, lux, and candelas
A pioneering team of scientists, with support from Microsoft, just hit a new milestone in optical communications. They’ve unveiled a
Measuring how bright stars are has always fascinated astronomers, and photometry lets us do it with impressive precision. Photometry in
Getting a handle on how our eyes respond to light is at the heart of both science and technology. Spectral
Colorimetry and photometry show up together a lot when people talk about light and vision, but honestly, they’re not quite
This study from researchers at the Czech Technical University brings a new approach to evaluating and designing imaging sensors. They’ve
Photometric measurements really depend on keeping light under control, but even tiny disruptions can throw off results. The most common
Integrating spheres sit at the heart of photometric instrumentation because they let us measure light with impressive accuracy and control.
Filter photometers play a crucial role in optical measurement. They isolate specific wavelengths of light using carefully designed filters. Unlike
If you want to know how well a detector turns incoming light into something you can actually measure, you have
Photometers use light-sensitive components to measure and analyze light accurately. Usually, these devices rely on photoresistors, photodiodes, or photomultipliers to
When you’re measuring faint light in astronomy or in the lab, it usually comes down to one thing: how well
Researchers at the University of Ottawa’s Nexus for Quantum Technologies, along with international collaborators, have pulled off a big step
You can measure light in two very different ways. Radiometry focuses on the physical energy of electromagnetic radiation. Photometry, though,
Photometers have become essential in fields where precise light measurement isn’t just nice to have—it’s necessary. Whether you’re in a
Cosine correction really matters when you measure illuminance. When light hits a surface at an angle, its intensity just isn’t
I get what you’re after—it sounds like you want me to turn a news article into a unique, SEO-friendly blog
Optical illusions have taken the internet by storm. One of the latest viral brain teasers is challenging even the keenest
Light shapes how we see and interact with the world, but measuring it can get confusing fast. People toss around
Photometry looks at light not just as energy, but as we actually see it. Unlike radiometry, which measures all electromagnetic
Light measurement isn’t just about how much energy a source emits. Our eyes actually react differently to each wavelength, and
There’s a new optical illusion making the rounds on social media. It’s just an everyday scene in a cozy room,
Astrophysics really leans on precise measurements of light, and photometry gives us the tools to make those measurements possible. Whether
Spectroscopy really hinges on how well we can detect light, and the sensor you pick makes a huge difference in
Spectroscopy really hinges on precise measurements, and it all starts with wavelength calibration. If you skip it, results can drift,
Low-light spectroscopy faces a stubborn challenge: noise that hides the spectral details researchers care about. When signals get weak, random
Spectral lines might seem like sharp markers of energy transitions, but in reality, they always show up with some width.
Fiber optic coupling sits right at the heart of modern spectroscopic instruments, letting us move light efficiently between a source,
On August 29, 2025, a “spot the animal” puzzle swept across the internet. Reddit user Willmalachen posted it in the
Fourier Transform Spectroscopy (FTS) gives us a powerful way to explore how matter interacts with light. Instead of relying on
When you’re deciding between transmission and reflection gratings, efficiency usually tips the scale. Both types manipulate light through diffraction, but
When you design the optical path of a spectroscope, you decide how efficiently it captures, disperses, and detects light. Every
There’s a new viral internet challenge making the rounds, and it’s surprisingly tricky. A simple backyard photo has managed to
Light doesn’t travel the same way through every material, and honestly, that simple quirk shapes almost everything in modern optics.