Peacock feathers are greatly admired for their bright iridescent colors, but it turns out they can also emit laser light when dyed multiple times, according to a paper published in the journal ...

VPH Volume Phase Holographic Grating (VPHG) is an optical component designed to diffract light into multiple wavelengths, widely used in spectroscopy, telecommunications, and laser applications. By ...

A PDF version of this document with embedded text is available at the link below: US012203862B1 (12) United States Patent LaChapelle et al. (54) RAMAN SPECTROSCOPY SYSTEM (71) Applicant: Haemanthus, ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

A spectrometer is a pretty common lab instrument, useful for determining the absorbance of a sample across a spectrum of light. The standard design is simple; a prism or diffraction grating to break ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Developing portable, cost-effective analytical tools is crucial to expose students to ...

Auroras are natural light displays in the upper atmosphere caused by interactions between precipitating particles, mainly electrons and protons, and air molecules. The spectrum of an aurora provides ...

A smartphone records the Raman spectrum of an unknown material (an ethanol solution, in this case) for further analysis. Credit: Texas A&M University Engineering The affordable, cellphone-based Raman ...

Abstract: This paper discusses the design of a CMOS-MEMS diffraction grating for a micro spectrophotometer with application in non-invasive glucose monitoring based on differential near-infrared ...

Holographic and Ruled diffraction gratings are available from Optometrics for use in high-level spectroscopy, alongside our Echelle, Filtered and Transmission gratings. One of the few gratings ...