Search Results for: beam

Raman scattering phenomenon can be used to engineer broadband tunable lasers and to generate a broad band of frequencies in the IR spectrum. These light sources are instrumental for probing and detecting ...

For any high-sensitivity laser application, it is essential that all necessary characteristics of the laser beam in use can be quantified and characterized beforehand. To this end, we have written ...

Cardiovascular Disease and Photoacoustic Imaging Cardiovascular diseases (CVDs) are the number one cause of death in the world, accounting for 31% of all deaths. This class of diseases includes heart ...

Comparison Between Laser Diode-Pumped Light Sources, LEDs, and HIDs There is a great push in society today to offer light sources that are brighter, clearer, and more energy efficient. For many years now, ...

Greenhouse Gas Emission: A Case Study In 2007, German officials pledged that the country would reduce greenhouse gas emissions 40% by the year 2020. The country dedicated $580 billion and passed over ...

Improving Communications by Blending Materials The advances in communication technologies that we enjoy today and treat as granted in our everyday lives are a result of a formidable thrust in the ...

Optical fibers are a convenient instrument for robust light transfer. Their low losses have enabled their wide use in long distance telecommunication systems while service providers like AT&T, Verizon ...

Introduction to the Photoacoustic Effect Alexander Graham Bell, a prolific inventor most celebrated for inventing the telephone, first observed the photoacoustic effect in 1880. Bell was experimenting with ...

Fourier-transform infrared spectroscopy (or FTIR, for short) is a method of exploring the physical properties of solids, liquids, and gases. More specifically, it allows the study of the absorptive and ...

The millimeter-wave (MMW) region of the electromagnetic spectrum is a region of frequency band between 30 gigahertz and 300 gigahertz, and it is called the Extremely High Frequency range. These high ...