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Helium Neon Lasers Have a Multicolored Future

From CVI Melles Griot
 

 
The market lifecycle of a high-technology product is typically quite short. Several types of gas lasers, however, including argon-ion, helium-neon (HeNe), and carbon dioxide lasers, continue to enjoy high sales volume in diverse applications even after many years in the marketplace (see Laser Focus World , January 1995, p. 54)

Products & Services
Laser mounts are devices that keep a laser in position on a optical table. Learn more about Laser Mounts
Lasers are devices that produce intense beams of monochromatic, coherent radiation. The word "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation. Search by Specification | Learn more about Lasers
Diode lasers use light-emitting diodes to produce stimulated emissions in the form of coherent light output. They are also known as laser diodes. Search by Specification | Learn more about Diode Lasers
Ion lasers function by stimulating the emission of radiation between two levels of an ionized gas. They provide moderate to high continuous-wave output of typically 1 mW to 10 W. Search by Specification | Learn more about Ion Lasers
Helium neon (HeNe) lasers have an emission that is determined by neon atoms by virtue of a resonant transfer of excitation of helium. They operate continuously in the red, infrared and far-infrared regions and emit highly monochromatic radiation. Search by Specification | Learn more about Helium Neon Lasers

Product Announcements
Fluitron, Inc. - Diaphragm Compressors
Metal diaphragm compressors feature freedom from contamination and leakage of the process gas, making them ideal for handling toxic, explosive, flammable, high purity, corrosive, radioactive or... (read more)
Electron Beam Engineering, Inc. - Laser Welding
Precision Laser Welding Service of small, micro and delicate parts is done with YAG lasers with high-powered optics and argon shielding gas. (read more)
Power Technology, Inc. - L28 HeNe Laser Power Supplies
Power Technology, Inc.'s L28 units are industry standard DC input power supplies for Helium Neon lasers up to 15mW. Each provides greater than 75% efficiency and, therefore, typically does not require... (read more)
Aalborg Instruments - Enhanced Direct Reading Scales for Flow Meters
Aalborg®'s Direct Reading Flow Tube Scales for Models P, S, and T Flow Meters are designed exclusively for a specific gas or liquid at a given temperature and pressure valid only for the associated... (read more)
Kin-Tek Laboratories Inc. - KIN-TEK Now Supports approx. 500 Chemicals
KIN-TEK makes several types of Trace Source™ disposable and refillable permeation tubes for approximately 500 chemicals shown in the following table. (read more)
 

Topics of Interest
A helium-neon (henceforth abbreviated HeNe) laser is basically a fancy neon sign with mirrors at both ends. Well, not quite, but really not much more than this at first glance (though the design and... (Read More)
Melles Griot manufactures a broad range of laser probe sources for biomedical applications. These include air-cooled argon, krypton, mixed gas, helium neon (HeNe), helium cadmium (HeCd), diode-pumped... (Read More)
9.13.4 Other Diode Laser Packaging As visible diode lasers have come to replace helium neon lasers in applications that require visible light, the diodes have been packaged with optics that focus the... (Read More)
9.10.1 Beam Shape and Divergence As you learned in Chapter 4, a beam emitted through a small aperture D has a relatively large divergence angle θ, because divergence is proportional to the... (Read More)
Cooling. Forced-air cooling is used in some small CO2 lasers. Higher- power lasers require water cooling, and the largest devices have sophisticated multicycle cooling systems. Typical water-flow... (Read More)