Thorlabs’ Post

Circular polarization revisited. While circular polarization is a familiar concept, it can be confusing in reality, in particular for simulation in time domain. FDTD simulation can easily give the frequency-domain results in space. However the definitions in time domain are frequently used. This leads to questions of left-/right-handed, clockwise/counterclockwise circular polarization, observer's location etc. I presented a short paper at 2024 Photonics West: , “Unique handedness of a circularly-polarized plane wave in simulation,”  https://lnkd.in/ghEBGCFb. I summarized the discrepancy from classical books, pointed out the opposite handedness in time and space, introduced the propagation direction k in the definition, and proposed a new triad of E1, E2 and propagation direction k to determine the handedness in time domain, which will be unique. Hopefully this concept can be clear in simulation, and professors can adopt it in textbooks and in classrooms. With the propagation direction involved, no observer is used and the handedness is objective.

📢 Automated SPM - full workflow And now Yu Liu has realized the full SPM workflow on combinatorial libraries using the Oxford Instruments Asylum Research Inc. Jupiter microscope. Now, the ML agent can tell the microsocpe to tune the microscope in the DART mode, scan the surface, measure several DART PFM hysteresis loops, withdraw the tip, go to a different surface location, engage the probe and scan the surface again, get more hysteresis loops. So now is the time for planning some interesting experiments to learn the physics and chemistry of ferroelectric and electrochemically active materials - and also to connect to the ML community interested in real-world deployment of the ML algorithms, as we posed in our paper "Probe Microscopy is All You Need", https://lnkd.in/eGKtgYPi ! Also - do register for the #AVS seminar on active learnign in microscopy, https://lnkd.in/e2zApEaP

Automated SPM is appealing~

Researcher Marco Piccardo was an invited speaker at Solvey Workshop - "Dissipative solitons, turbulence and extreme events in nonlinear photonics" -which took place in Brussels, from 6-8 September. This workshop has covered the most recent advances in the following active areas of study: • Spatial and temporal localized structures of light • Laser mode locking • Machine learning and networks with photonic devices • Microresonator frequency comb technologies • High-precision spectroscopy • Generation and propagation of pulses in fiber lasers and optical waveguides • Stability, interaction, and mobility of optical solitons • Extreme events, turbulence, and spatiotemporal chaos in photonic devices Solvay conferences began with the historic invitation-only 1911 Solvay Conference on Physics, considered a turning point in the world of physics. #solveyconference #photonics #solitons #spatiotemporal #light #weareTécnico

Published in Applied Optics [#OPG_AO], a Université Grenoble Alpes research team demonstrated an accurate high-sensitivity method for cavity spectroscopy: https://ow.ly/Z8ec50R53wI The technique combines the optical feedback locking of a laser diode to a cavity mode with heterodyne detection at cavity transmission after imposing frequency sidebands to the laser. As a result, the team could detect side band power down to fW levels even with a small carrier power transmitted through the cavity. Written by: Marianne Beaumont, Irène Ventrillard, and Daniele Romanini #ScienceAndTechnology #Spectroscopy #Optics #LaserScience

Really interesting article published in Optics Express (Optica) on Silicon Nitride (SiN) integrated optical devices. The authors do a great job of covering the whole process of creating SiN integrated devices: simulation, fabrication and characterisation. Well worth a read! #physics #optics #optica #photonics #integration #semiconductors

Not all glass is created equal. This infographic shows how thick different glass types can be so that 1% of light is transmitted through them It shows that optical fibers have a lot less loss than normal optical glass and waaay less loss than the glass in the windows of your home The image shown here is one of the many in the great, freely-available book from SPIE, the international society for optics and photonics full of photonics-related infographics You can download a PDF of the book for free here: https://lnkd.in/gt9hruQy #Optics #Photonics #FreeBook #Light #Physics #STEM #Science

The Journal of Nanophotonics (JNP) is an online journal focusing on the fabrication and application of nano structures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes. The scope extends to theory, modeling and simulation, experimentation, instrumentation, and application.ublisg We have published a entitled "Optical field enhanced nonlinear optical performance of chalcogenide nanocomposite-based 1D photonic crystal" in Journal of Nanophotonics (available in SPIE digital Library online) https://lnkd.in/d8wRz83x #optics #NCU, #spie, #Nanophotonics,

Unlock the World of Modern Optics & Photonics with SPIE's Workshop! "Optics and photonics are the key to understanding the world, from the tiniest particles to the vastness of the cosmos." Prepare to embark on a mesmerizing journey into the realm of light and innovation at SPIE's Workshop on Modern Optics & Photonics Experiments. 📅 Date: October 28, 2023 🕙 Time: 10:00 AM Onwards 📍 Location: Electronics Lab | SPIE Lab Workshop Highlights: 1️⃣ Holography Wonders: Explore the magic of holography and witness how light can create three-dimensional marvels. 2️⃣ Geometrical Optics Kit: Bend, reflect, and refract light to unveil the secrets of geometrical optics in a hands-on setting. 3️⃣ Electro-Optic Effect: Dive into the world of electro-optics and discover how electric fields manipulate light. 4️⃣ Dance of Diffraction: Unravel the mysteries of light diffraction and its impact on various applications. 5️⃣ Polarization Playground: Understand the fascinating world of polarized light and its significance in modern optics. 6️⃣ Optical Fiber Setups: Delve into the technology that powers modern communication and data transmission. This workshop is your passport to a world of cutting-edge experiments and hands-on experiences. Whether you're a student, scientist, or just a curious mind, you'll be captivated by the wonders of optics and photonics. Join us as we celebrate the fusion of science and art, and get ready to uncover the hidden beauty of the universe through the lens of modern optics. Reserve your spot now and prepare for a day filled with enlightenment, exploration, and the magic of light. To register and learn more, visit: https://lnkd.in/d7wZpAQv The future of optics awaits, and it starts here! #SPIEOpticsWorkshop #PhotonicsExperiments #LightAndInnovation #ScienceIsMagic #ExploreTheUnseen #HandsOnLearning #SPIEEvent #UnlockingTheLight #spie #spiestudentchapter #physics #optics #studentsociety #spiephotonics #space #benifits #astronomy #exploration #science #andc #delhiuniversity #delhi #university #light #photons #universe #du #ideas #innovation