Giannella Manzanero’s Post

Piezoelectric phase shifter in Michelson interferometer: The principle of Michelson interferometer is that a beam of incident light is divided into two beams through the spectroscope, and each is reflected back by the corresponding plane mirror, because the two beams of light have the same frequency, the same vibration direction and the constant phase difference (that is, meet the interference conditions), so interference can occur. The different optical paths of the two beams in the interference can be achieved by adjusting the length of the interference arm and changing the refractive index of the medium, so that different interference patterns can be formed. The interference fringes of equal thickness and equal inclination can be generated by adjusting the interferometer. The principle can be used to develop a variety of measuring instruments. The system uses the core tomorrow P63.Z piezoelectric nanopositioning platform as a phase shifter, the phase shift stroke is 0~6.8μm, the phase shift resolution can reach 0.1nm, the response speed of the full stroke 6.8μm motion range is 0.3ms, and the nanoscale step scanning speed will be faster. https://lnkd.in/gBF4JAUi

Deep Ultraviolet Light Emitting diode Peak wavelength 230 nm Features: Light Source for Sterilization and Medical Application ▪ Lighting Color(Peak Wavelength) : 230 nm ▪ Surface Mount Type LED: 3.6 x 3.6 x 1.5 (L x W x H) [Unit : mm] ▪ Soldering Methods: Reflow Soldering Electro-Optical Characteristics (I F = 100 mA, T a = 25 ℃) Forward Voltage:6-8V; Radiant Flux:3MW Peak wavelength:225-230-235nm Spectrum Half Width:11NM Viewing Angle:TBD Thermal Resistance Note 2 (Junction to Solder point):TBD Package:1000pcs/roll Notes : 1. Measured by optical spectrum analyzer of YSLED, some values may vary depending on the conditions of the test equipment. - Forward Voltage (Vf) : ±0.1V - Peak Wavelength (λ p ) : ± 3nm - Radiant Flux (P o ) : ±10% 2. Thermal resistance can be increased substantially depending on the heat sink design/operating condition, and the maximum possible driving current will decrease accordingly. applications: ▪ Disinfection, Phototherapy, Fluorescent Spectroscopy, Sensor Light, Bio-Analysis / Direction, Counterfeit Detector etc. Operating the LED beyond the listed maximum ratings may affect device reliability and cause permanent damage. These or any other conditions beyond those indicated under recommended operating conditions are not implied. The exposure to the absolute maximum rated conditions may affect device reliability. - The LEDs are not designed to be driven in reverse bias.

Measurement of dielectric constants of nematic liquid crystals at mm-wave frequencies using a patch resonator We are excited to explore the potential of Liquid Crystal Technology for Millimeter-Wave Applications. Our new device is designed for precise measurement of the dielectric properties of nematic liquid crystals at millimeter-wave frequencies. The planar structure, which incorporates a rectangular patch resonator, offers a compact and efficient solution compared to traditional methods. By applying an electric field to align the LC molecules, we have been able to achieve accurate measurements while minimizing device size. The device also supports two types of surface preparations—transverse and longitudinal rubbing—enabling a comprehensive analysis of dielectric constants and anisotropy. Discover our compact solution for precise dielectric measurement of liquid crystals at millimeter-wave frequencies! #LiquidCrystalTech #MillimeterWave #DielectricMeasurement #PatchResonator #Innovation

⁉ What is Infrared Lens ⁉ 🔎 #Infrared lenses are #precision #optical components crafted for use with infrared radiation, which lies beyond the visible light spectrum. Tailored from materials like germanium, zinc selenide, and chalcogenide glasses that are transparent to IR light, these lenses excel at capturing and focusing this type of radiation. 💡 They are integral to #applications such as thermal #imaging, spectroscopy, and FLIR (Forward-Looking Infrared) systems, which operate across the infrared spectrum ranging from 700nm to 16000nm. 🌊 This spectrum is further categorized into Near-Infrared (NIR: 700-900nm), Short-Wave Infrared (SWIR: 900-2300nm), Mid-Wave Infrared (MWIR: 3000-5000nm), and Long-Wave Infrared (LWIR: 8000-12000nm), with each segment serving specialized #detection and imaging needs. #optics #machinevision #technology #automation

Handheld X-ray fluorescence (HHXRF) is a well-known and widely used method for on-site screening and analysis of a broad variety of sample types. Results are available in seconds (no need to wait for time-consuming and costly laboratory analysis results), enabling users to make decisions on the spot (e.g. check that the material meets specifications). Hitachi High-Tech’s X-MET8000 Expert Geo is an HHXRF analyzer that offers versatility and can be used for the rapid screening of the value elements in black mass to make a preliminary valuation of the material before it is shipped. It is easy to use and helps dramatically reduce the need for laboratory analysis and the associated cost. Its large-area silicon-drift detector (SDD) and revolutionary BOOST technology provide up to 10 times the sensitivity of other HHXRF models, delivering excellent precision for results you can trust, day after day. There is no need for restandardization or detector cooldown periods between analyses, even in hot weather. IP54 rated and tested to MIL-STD 810G for vibration, shock and drop (Method 514.6, Procedure I, Category4; Method 516.6, Procedures I and IV), the X-MET8000 Expert Geo is rugged and won’t let you down. The collected data is automatically saved on the device and can be shared instantly via Wi-Fi connection by using the Hitachi High-Tech ExTOPE Connect app and cloud service. For more information, please reach out to Mr. Lim Hwee Hong at hhlim@ndt-instruments.com (+65 9685 1211 or +65 6571 0668 Ext. 2643) #NDTInstruments #NDTIGroup #Hitachi #Xmet8000 #Xmet #NDT #nondestructivetesting #HandheldXRF #Portable #Recycle #Battery

The Spectra-Physics Vanguard™ One™ UV125 is a compact,all-in-one, quasi-CW laser delivering >125 mW of UV power. The new laser operates air-cooled with low noise of <1% rms and delivers a long-operating life and low cost of ownership. -Low noise quasi-cw output of <1% rms -Air-cooled design with <100 W heat dissipation -Excellent beam quality M2 <1.2 -Durable, reliable, and rugged -Compact all-in-one design -Closed-loop power control -Flow Cytometry -Cell Sorting -Wafer Inspection -Electron Microscopy -Confocal Microscopy -Laser-induced Fluorescence

Measurement of dielectric properties of nematic liquid crystals at milimeter wavelength To truly harness the potential of liquid crystals (LCs) in communication devices, we have developed an advanced characterization method based on the transmission line technique. This method enables broadband characterization of nematic LCs, particularly in the 30-60 GHz frequency range. We employ unique LC cells and test five different nematic LC mixtures, including E7, K15, E44, E63, and MDA-00-3506. By extracting their electrical and mechanical properties, we gain a deeper understanding of how these materials can enhance performance in reconfigurable millimeter-wave devices. Advancing millimeter-wave tech with precise LC measurements—unlocking new potential in reconfigurable devices! #LiquidCrystals #MillimeterWave #RFTechnology #WirelessInnovation #MaterialScience

Interested in detecting and/or measuring micrometric changes in the distance between two objects non-invasively, without the need for expensive optical equipment? In our recent article (https://lnkd.in/dBi_C73X), we propose and conduct a proof of concept study to investigate the Leidenfrost phenomenon using a non-invasive capacitance technique. To this end, we designed and fabricated a capacitive sensor with in-plane miniaturized electrodes forming a double-comb structure. The capacitance output of the sensor is first characterized for several well-controlled distances between the sensor surface and a dielectric material, and the influence of electrode spacings and substrate material on the sensor output is investigated. Finally, we demonstrate the feasibility of this method for investigating the Leidenfrost phenomenon by employing a dry ice pellet as the Leidenfrost object, which sublimates on the temperature-controlled capacitive sensor. This technique is not limited to detecting small changes in distance but has broad implications. For instance, it can potentially be used to investigate multiphase flow problems even at cryogenic temperatures by sensing several parameters (phase fraction, velocity, etc.) with a high degree of resolution, facilitating various levels of flow detailing. This ranges from simple capacitive probes to capacitive flow imaging and tomography. Special thanks to the co-authors for their contributions to this work: Jelle Rijs, Pankaj Sagar, PhD, Srinivas Vanapalli #Capacitance #sensor #Leidenfrost #instrumentation #multiphaseflow #dryice

Observation of memristive behavior in PDMS-glass nanofluidic chip https://lnkd.in/evJAvMXk

Phelos is an angular luminescence spectrometer to characterize light-emitting devices and thin films over varied emission and polarization angles. While traditional goniometric instruments focus on either electroluminescence (EL) or photoluminescence (PL), Phelos incorporates both measuring techniques in one table-top compact instrument. The Phelos software can be easily coupled to the powerful simulation software Setfos for data analysis, parameter extraction, and device modeling. https://lnkd.in/dydAddzi #solarcell #oled #perovskite