Laser Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
CW | A | Curtiss-Wright Corporation | 0.77 | |
SCX | A | L.S. Starrett Company (The) | 0.25 | |
SWBI | A | Smith & Wesson Brands, Inc. | 1.37 | |
IMOS | A | ChipMOS TECHNOLOGIES (Bermuda) LTD. | 1.69 | |
NZUS | A | SPDR MSCI USA Climate Paris Aligned ETF | 0.53 | |
AVY | B | Avery Dennison Corporation | -0.56 | |
MSI | B | Motorola Solutions, Inc. | -1.21 | |
EBAY | B | eBay Inc. | -1.63 | |
OSIS | B | OSI Systems, Inc. | 1.06 | |
NOC | B | Northrop Grumman Corporation | 0.14 |
Related Industries: Aerospace & Defense Auto Parts Biotechnology Business Equipment Communication Equipment Computer Systems Consumer Electronics Diversified Industrials Drug Manufacturers - Specialty & Generic Electronic Components Electronics Distribution Leisure Medical Care Medical Care Facilities Medical Devices Medical Instruments & Supplies Metal Fabrication Packaging & Containers Pollution & Treatment Controls Rental & Leasing Services Scientific & Technical Instruments Semiconductor Equipment & Materials Semiconductors Shell Companies Specialty Industrial Machinery Specialty Retail Steel Tools & Accessories
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
ONLN | A | ProShares Online Retail ETF | 9.93 | |
CUT | A | Invesco MSCI Global Timber ETF | 9.71 | |
CLIX | A | ProShares Long Online/Short Stores ETF | 8.95 | |
XAR | C | SPDR S&P Aerospace & Defense ETF | 7.71 | |
MISL | B | First Trust Indxx Aerospace & Defense ETF | 7.4 |
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- Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow.
A laser differs from other sources of light in that it emits light coherently. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light. Alternatively, temporal coherence can be used to produce pulses of light with a broad spectrum but durations as short as a femtosecond ("ultrashort pulses").
Lasers are used in optical disk drives, laser printers, barcode scanners, DNA sequencing instruments, fiber-optic and free-space optical communication, laser surgery and skin treatments, cutting and welding materials, military and law enforcement devices for marking targets and measuring range and speed, and in laser lighting displays for entertainment.
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