Search Results for: spectroscopy

Introduction to Prisms Even as early as in the 13th century, six-sided crystals of natural quartz were used to generate rainbows. In the late 1660s, people believed that color was a mixture of lightness ...

Introduction to Diffraction Gratings Diffraction gratings are optical components that diffract and separate light into several beams at different angles by wavelength. Their working principle is hinged ...

Introduction to Optical Parametric Oscillators In 1961, Peter Franken and his group at the University of Michigan were the first to use  nonlinear materials to produce optical harmonics. This method ...

Forensic science has come a long way since the 700s, when the Chinese first established the concept of utilizing fingerprints as means of identification. Since then, technology in photonics and optics ...

Introduction A single human hair is approximately 80,000-100,000 nanometers wide. Now, imagine a distance that measures several hundred times smaller than a human hair. Such small distances are often ...

Introduction to Elemental Analysis All matter on Earth is composed of an assortment of 118 elements. The possible combinations are endless, with varying quantities of molecules and components in a ...

What is Hyperspectral Imaging? Imagine an iPhone app that could help you choose the best produce, the ripest fruit, or determine if the vegetables you are about to buy are truly organic. Well, it turns out ...

Introduction to Raman Microscopy Raman microscopy is a laser-based spectroscopic technique used to observe molecular vibrations. It is frequently utilized in chemistry to provide a “fingerprint” ...

Introduction to Human Breath Analysis Linus Pauling discovered modern human breath analysis in 1971 when he demonstrated that human breath has more than 200 different volatile organic compounds, proving ...

What is Gas Analysis? Gases are all around us. While some gases have noticeable odors, most are virtually undetectable by human senses. Gas detection first became a concern when certain gases proved to ...