Apr 20, 2023 | Application, Biology, Chemistry, Lasers
Robinson Karunanithy, Suthakaran Ratnasingam, Torrey Holland, and Poopalasingam Sivakumar Bioconjugate Chem. 2023, 34, 3, 501–509 Abstract Detection of cancer before the appearance of any symptoms is crucial for successful treatment. Early detection is, however, very...
Aug 13, 2021 | Glossary of Spectroscopy Terms, Light Source, Spectroscopy
The SL1-Filter comes with a color equalization filter. Halogen lamps naturally emit a black body curve with weak blue emissions and strong green, yellow, red, and NIR. The Color Equalization Filter knocks down the emissions in the stronger wavelengths and allows the...
May 3, 2021 | Application, Lasers, LED Measurement, News
Happy Star Wars Day and May the Fourth be with you! Please enjoy this fun spectroscopy application note on lasers and light, from your favorite spectrometer manufacturer, StellarNet, Inc. Star Wars has taken over the galaxy, the box office, and the toy aisles. With...
Feb 14, 2017 | Glossary of Spectroscopy Terms, Light Source
LEDs are semi-conductors that are used to emit radiation. In this instance, semi-conductors behave much like atoms and molecules do. They have energy levels and radiation is emitted when electrons fall from a higher level to a lower level. The difference is that an...
Feb 14, 2017 | Glossary of Spectroscopy Terms, Light Source
Lamps are light sources that provide radiation mainly through spontaneous emission. This means that the radiation is emitted in all directions and is not coherent. Many lamps tend to emit many wavelengths, but the radiation is hard to collimate into a beam. For many...
Feb 14, 2017 | Glossary of Spectroscopy Terms, Lasers
Coherence describes how the relative phases of waves behave. If the relative phase is constant, the waves are said to be coherent. If the relative phase changes, the waves are said to be incoherent. When talking about distance, it is called spacial coherence....