Tomorrow, Laser Focus World has a webinar on robotic AR/VR/MR metrology – register now!



Richard L. Austin
President and Chief Technology Officer of Gamma Scientific

Sonika Obheroi
Gamma Scientific Product Manager
25 ways precision metrology is enabled via capacitance measurement

Andeen-Hagerling has been manufacturing class-leading capacitance and capacitance/loss bridge test equipment for over thirty years. Their equipment is used in laboratories worldwide, in a wide variety of research and industrial applications.
These include:
|
|
Elliot Scientific is able to offer expert advice on selecting the right Andeen-Hagerling instrument for your project, so please contact us with details of the application and we will be happy to help.
Atom Optics & Spectroscopy benefit from Photodigm Laser Diodes

Photodigm specialises in manufacturing high power single spatial and longitudinal mode laser diodes. By incorporating their proprietary DBR – Distributed Bragg Reflector – technology within a monolithic architecture, Photodigm delivers unequalled performance for researchers requiring excellent spectral purity and superior beam quality with high output powers, whilst ensuring long term reliability and stability. Typical high-resolution spectroscopy applications include:
- Atomic and Molecular Optical Physics
- Cold Atom Spectroscopy & Precision Instrumentation, for example:
- Advanced gravimeters
- Magnetometers
- Atomic clocks
- Gyroscopes
- Raman Spectroscopy, Interferometry, Lidar and Metrology
With a narrow linewidth on the order of 1 MHz, and powers up to 300 mW, Photodigm DBR lasers are uniquely suited to numerous precision projects.
For more information about Photodigm laser diodes, please contact us.
The “World’s Most Accurate” Capacitance Bridges are from Andeen-Hagerling

Andeen-Hagerling manufacture the world’s most accurate capacitance bridges and standards, and their AH 2700 models offer unparalleled stability, resolution, linearity and accuracy in a multi-frequency capacitance/loss bridges.
The numerous state-of-the-art features of the AH2700 make it an exceptionally user-friendly instrument, with unmatched precision that enables it to open up new applications in calibration, manufacturing and scientific research.
The AH2700 is the culmination of over 40 years of Andeen-Hagerling experience in bridge design and manufacture. The unique ratio transformer and the temperature-controlled, fused-silica capacitance standard make the instrument a true bridge for measuring highly accurate capacitance/loss figures which are independent of the exact test frequency (50 Hz – 20 kHz) and immune to mechanical shock.
Applications
- Dielectric Characterisation
- Carbon Nanotubes, Nanowires and Quantum Dots
- Dilatometry: Thermal Expansion, Magnetostriction
- Ferroelectrics
- Biophysics
- Liquid Crystals
- Low Temperature Physics
- Magnetocapacitance, Magnetoresistance and Magnetodielectric effects
- Magnetometry
- Pressure/Capacitive Bolometry
- Scanning Capacitance Microscopy (SCM)
- Spectroscopy
- Single Electron Tunneling (SET)
- Structure And Phase Transitions
- Superconductivity
- Superfluids
- Tunneling
- Atomic Layer Deposition (ALD)
- Nano-Force Metrology
- Precision Positioning
- Scanning Tunneling Microscopy (STM)
- Glasses
- Gravity
- Semiconductor Test
- Electrical/Capacitance Metrology
For more information on this and the other Andeen-Hagerling instruments we offer, please contact us.
New Green Diode Laser for the more demanding application

“Micro Laser Systems has designed this laser to ensure source imperfection is a thing of the past”
Micro Laser Systems (µLS) has introduced a high stability green diode laser with diffraction limited performance for more demanding applications. These include: confocal microscopy, flow cytometry, fluorescence excitation, particle analysis, direct laser writing and metrology.
This new laser in the Lepton IV OEM series delivers a circular Gaussian beam with high output stability, has a low power requirement, and is built into a smaller package size when compared to typical Argon and diode pumped lasers. Output power is up to 40 mW and can be continuous wave, pulsed, or modulated, while the low wavefront error allows for the generation of micron and sub-micron spots sizes, or the production of a large clean beam for illumination.
The OEM units are available with or without temperature control – depending on your application – and are provided with numerous threaded mounting holes for secure installation.
For more information on this model, other wavelengths available in this series, or the extensive µLS range of collimators, free-space, and fibre-coupled lasers, then do contact us now.
Ultra-high Resolution Raman Spectroscopy from CRAIC Technologies’ Artemis™ System

Ultra-high resolution Raman microspectroscopy is now available throughout the UK and Ireland as Elliot Scientific introduces the CRAIC Artemis™ Raman Spectrometer – available as an add-on for modern research grade microscopes, or as an option for CRAIC’s existing range of UV-Vis-NIR Microspectrophotometers.
Perfect for research, metrology and quality control, the CRAIC Artemis™ Raman system has been designed specifically for microscopic sample. Its patented virtual slit technology dramatically increases the sensitivity of the spectrometer, offers an extraordinarily large spectral range, yet maintains the high speeds and spectral resolution for which CRAIC microspectrometers are known.
The Artemis™ modules are available in many different laser wavelengths and two can be combined for the ultimate in experimental flexibility. Easy to use and economical to own and operate, they enable rapid sample analysis within life sciences, materials science, chemistry and physics.
Each module includes a choice of diode laser, imaging and microscope optical interface, durable solid-state Raman spectrometer, and software from CRAIC – the experts in microspectroscopy.
For more information about the Artemis™ Raman Spectrometer and other CRAIC systems, please contact us.
Meridian & Axiom – Semiconductor Disk Lasers from Solus Technologies

Solus Technologies is a manufacturer of an innovative range of Semiconductor Disk Lasers (SDL) that utilise unique, custom-designed semiconductor structures. Their experience in III-V semiconductors, optical components and DPSS laser engineering brings products and solutions to a diverse range of customers, from OEM applications – for example, high volume printing and semiconductor metrology – through to precision scientific markets such as high resolution spectroscopy.
Meridian is a family of tunable 2 µm lasers provide a winning combination of high power (150 mW), compact footprint and a wide range of custom wavelengths (from 1.9 to 2.5 µm) that includes those traditionally difficult to reach in the mid infra-red. Meridian offers exceptional flexibility in configuration and operation, providing a cutting edge product for applications that include: gas sensing, molecular spectroscopy (ideal for the top 4 greenhouse gases), and bio-medical imaging and analysis.
Axiom delivers the performance you need from a cutting edge laser on the important 514 nm line by combining excellent beam quality with high power and narrow linewidth. Alternatively, Axiom can be delivered with a user specified operating wavelength that’s accurate to ±1 nm at any wavelength between 500 and 599 nm. Axiom excels in a range of lab or industry applications, such as biophotonics and metrology, offering outstanding power and flexibility from a compact cost effective form factor. It is the ideal replacement for a legacy Argon-Ion system for example.
For more information on these laser, please contact us.
Raman Spectroscopy performance peaks using the CRAIC Apollo™ system

Fast and easy Raman spectroscopy of microscopic sampling areas is now available to researchers in the UK and Ireland as Elliot Scientific introduces the CRAIC Apollo™ Raman Spectrometer – available as an add-on for modern research grade microscopes, or as an option for CRAIC’s existing range of UV-Vis-NIR Microspectrophotometers.
Perfect for research, metrology and quality control, the CRAIC Apollo™ Raman system has been designed specifically for microscopic sample analysis by employing optimised optics, software and hardware throughout its modular design.
The highly sensitive Apollo™ modules are available in different laser wavelengths and can be combined for the ultimate in experimental flexibility. Easy to use and economical to own and operate, they enable rapid sample analysis within life sciences, materials science, chemistry and physics.
Each module includes a choice of diode laser – from 405 to 830 nm, imaging and microscope optical interface, cooled CCD detector, durable solid-state Raman spectrometer, and software from CRAIC – the experts in microspectroscopy.
For more information about the Apollo™ Raman Spectrometer and other CRAIC systems, please contact us.
Firefly IR laser features high pulse energy and peak power

M Squared Lasers has just released revised specifications for their Firefly-IR. The improved performance of this innovative, widely tunable infrared laser source brings new capabilities to a host of molecular spectroscopy, remote sensing and imaging applications.
- High pulse energy and peak power –
- Greater detection sensitivity & stand-off distances
- Enhances signal to noise ratio
- High repetition rate –
- Rapid data acquisition
- Real time imaging
- Data logging –
- Combine wavelength & measured data into single file
- ICE-BLOC control
Firefly-IR’s broad mid-infrared wavelength coverage (~2.5 – 4.5 µm) allows users to probe the absorption features of many different molecules with a single device. Available in two standard power levels (Firefly-IR-250 and (Firefly-IR-60), the laser’s high average power and correspondingly high peak power (up to 200 W) afford high detection sensitivity and greater standoff distances. For more information, please contact us or download the Firefly-IR datasheet.