RGB Lasersystems GmbH

- Confocal microscopy - A confocal microscope is a special light microscope that can be used to produce very accurate images of samples. The following graphic shows the schematic body of such a measurement. Laser beams are sent through an excitation pinhole or glass fibers, which reach the sample through various lenses via the microscope stand. The objective directs the two beam paths to a common exposure point, which means that both the illumination point and the excitation pinhole are in focus at the same time (confocal to each other). Due to fluorescence, the laser beams travel from the sample via lenses to a detector, which can generate an overall image from many individual measurements. You can imagine that the sample is not "photographed" as a whole, but that many individual images are taken in a raster-like manner, which can be made into an overall image using software. This works by moving the microscope stand and, more precisely, the mirror in the x and y directions until all areas have been photographed. Confocal microscopy allows cells or tissue, for example, to be viewed in high resolution and detail #confocalmicorscopy #anlysis #laser #small #smart #customized  RGB Lasersystems GmbH

Lambda Mini - the smallest lasersystem in the world. Our Lambda Mini laser has an incredibly small size that is perfect for space-limited applications. The Lambda Mini contains not only the diode and the precision collimation optics, but also the laser controller and the power supply via USB. The graphic shows how small the laser is compared to a standard paper format (DIN A4/ISO 216). Find out more on our website: www.rgb-lasersystems.com #Laser #spacelimited #small #smart #customized RGB Lasersystems GmbH

Dynamic light scattering/photocorrelation spectroscopy This is a measuring method that can be used to determine the hydrodynamic radius of particles. When particles (e.g. proteins) are radiated by a laser light, which is coherent and monochromatic, it is scattered in all directions. With the help of an interferometer, the distance between centers from which the scattered light originates (so-called scattering centers), i.e. the distance between particles, can be determined. As the distances between the particles are constantly changing due to Brownian molecular motion (random movements of molecules/particles in a fluid state), interference occurs which leads to fluctuations (changes in scattering intensity). The diagram shows what such fluctuations look like graphically for large/small particles. The interference can now be used to determine the speed of the particles and the so-called diffusion coefficient. The autocorrelation function can be used to calculate particle parameters, which can be used to determine the hydrodynamic radius of the particles using the Stokes-Einstein equation. These results can be used to indirectly determine the molar mass of the measured particles. #dynamiclightscattering #science #molecule #laser #lasersystem #small #smart #customized RGB Lasersystems GmbH

Michelson interferometer The Michelson interferometer is an interferometer named after the physicist Albert A. Michelson. The Michelson interferometer utilizes the phenomenon of interference, which can only be observed with coherent light, for example that of a laser. The graphic illustrates the basic structure of the Michelson interferometer. An interferometer splits a light wave into two parts. These two waves then travel different distances with different propagation times. When they meet, interference occurs.  If the optical path length of one of the two waves is changed, e.g. by moving one of the two mirrors, the phases of the two waves are shifted against each other and thus the interference pattern changes. By measuring the intensity of the resulting wave, even the smallest changes in the path difference between the two waves can be measured. One example of an application is the measurement of the thermal expansion of materials. Using the Michelson interferometer, even the slightest expansion can be detected, making the measurement extremely accurate. #Interferometry #Physics #small #smart #customized  RGB Lasersystems GmbH

Have you ever heard of flow cyometry? This is a measurement method for the qualitative and quantitative analysis of cells. It starts with cells being sucked into a fluidic system at high speed. The more than 1000 cells per second are shot individually through the laser beam and emit fluorescence depending on their individual characteristics. With different wavelengths (red, yellow, green, blue...) the following different information can be obtained. The forward scatter detector is a measure of the diffraction of the light, which can be used to determine the volume of the cell. The side scatter detector is a measure of the refraction of light at right angles, which can be used to determine the size and structure of the cell nucleus, the number of vesicles and the granularity of the cell. Using a so-called FACS- (Flourescence-activated Cell Sorting) device, the cells can then be separated according to their characteristics. One example of an application of flow cyometry is the separation of sperm cells with sex chromosome X and those with chromosome Y in order to determine the sex of an embryo created by in vitro fertilisation. #flowcyometry #science #cellanalysis #applicationoflaser #laser #small #smart #customized RGB Lasersystems GmbH

What can a Pyrometer do? A pyrometer is a radiation thermometer for non-contact measurement of temperatures between -50 °C and +10000 °C. Every object with a temperature greater than 0 Kelvin emits thermal radiation, the intensity of which depends on its temperature. This radiation is recorded and analysed with a pyrometer. The Institute of Geosciences at Goethe University Frankfurt uses a Lambda Beam 638nm laser system for reflectrometry for its fast multi-wavelength pyrometer. #small #smart #customized #laser #pyrometer

March 21, The Day of Color.   The initiative and original idea for International Color Day (ICD) goes back to the Portuguese Maria Joao Durao. As President of the Portuguese Color Association, he presented the idea for today's day of action to the International Color Association on 19 April 2008. The 21st March explicitly refers to the equinox, when day and night are exactly the same length in time. Our products also have to do with many colors. Each wavelength has its own spectral color, which may or may not be visible to our eyes - from 375nm to 1550nm. #small #smart #customized #laser #colour #color

Welcome 2024 - Welcome to Photonics West   We will be travelling to San Francisco at the end of January full of anticipation. Our eighth participation in Photonics West will once again be a warm place to meet and exchange ideas with partners and interested parties. And anyone who decides to purchase a laser system by mid-February will receive an 8% discount on the order. See you in San Francisco. #small #smart #customized #laser