Lasers - StellarNet, Inc.

Sensitive Detection of the Human Epididymis Protein-4 (HE4) Ovarian Cancer Biomarker through a Sandwich-Type Immunoassay Method with Laser-Induced Breakdown Spectroscopy

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...

May the 4th be with you! Lightsaber Technology, Fact or Fiction?

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...

What is Coherence?

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....

What is a Laser?

Feb 14, 2017 | Glossary of Spectroscopy Terms, Lasers, Light Source

The word “laser” is an acronym that stands for “light amplification by stimulated emission of radiation.” Lasers have two main components: a cavity made by two mirrors that reflect light between them and a gain medium that sits inside the cavity. Energy is pumped into...