Laser Diode Blue Help,i think iv been exposed to radiation?
well, i was trying to make a burning lazer pointer and it said u need a laser diode, so i opened up my dvd player and tryed to remove it, but i couldent find it. I saw this blue piece of glass inside of it and thought it was the laser diode and i got this wired red stuff on my fingers that was underneath it. I dont know what it was, but i gave up trying to find it. I was about to throw it out and i saw a warning label on it saying something like: warning, opening could cause exposure to radiation. Im very scared, plz help
what could the red stuff that came out of it be?
im talking about a dvd rom player on a computer
The warning about not opening DVDs is to avoid viewing the laser directly - not to any radioactive solids.
Edit:...I can only imagine the red material is some plastic insulation from a wire - whatever it is I'm sure you are in no immediate danger.
In this book, the design of InGaN LDs structures including multi quantum wells (MQWs) active region device are described and investigated by integrated system engineering technology computer aided design (ISE TCAD) device simulator. The parameters of the LDs structures are varied and optimized for high performance. This optimization study involves aspects such as thickness of active region, doping, thickness of stopper layer region, thickness of quantum wells and quantum barriers, number of quantum wells and several approaches to improve and achieve high efficiency, low threshold current and high output power of InGaN LDs. The basic LDs structures treated here are FabryPerot type InGaN double heterostructure (DH), separate confinement heterostructure (SCH) and multi quantum wells (MQWs).High performance LD has been obtained by using multi quantum wells incorporated with the optimized parameters. The lowest threshold current, higher external quantum efficiency and characteristic temperature are obtained when the number of InGaN well layers is two, at our laser emission wavelength of 415 nm, which is related to the problem of inhomogeneous carrier. Author: Thahab, Sabah Binding Type: Paperback Number of Pages: 232 Publication Date: 2011/01/31 Language: English Dimensions: 5.98 x 9.00 x 0.53 inches
Laser Diode Microsystems provides the reader with the basic knowledge and understanding required for using semiconductor laser diodes in optical microsystems and microoptical electromechanic systems. This tutorial addresses the fundamentals of semiconductor laser operation and design, coupled with an overview of the types of laser diodes suitable for use in Microsystems, along with their distinguishing characteristics. Emphasis is placed on laser diode characterization and measurement as well as the assembly techniques and optical accessories required for incorporation of semiconductor lasers into complex microsystems. Equipped with typical results and calculation examples, this handon text helps readers to develop a feel for how to choose a laser diode, characterize it and incorporate it into a microsystem. Author: Zappe, Hans P./ Zappe, H. Series Title: Microtechnology and Mems (Hardcover) Binding Type: Hardcover Number of Pages: 355 Publication Date: 2003/10/10 Language: English Dimensions: 9.21 x 6.14 x 0.81 inches
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This book basically gives the over view about The properties of erbiumdoped fiber amplifier (EDFA) such as gain and noise figure have been studied. By determining the characteristics of the 980nm, 1480nm 1550nm laser sources and ASE (amplified spontaneous emission) at the output of the amplifier used to determine the gain and noise figure of EDFA. This model allows to follow the signal (1550nm), pump (980nm) and ASE as they propagate along the fiber and determine population inversion .The both forward and backward propagation ASE are important in determining the overall gain and noise figure. For the amplification of more than 80 channels the DWDM (Dense Wavelength Division Multiplexing) has required CBand (15251565)nm and LBand (15651610)nm EDFA.We show that a flat gain spectrum can be achieved in the range from 1565 to 1610 nm when the EDF length, pump power and pump configuration are appropriately chosen. Special care must be taken when selecting the EDF length. Author: Kumar, Pankaj/ Kumar, Chakresh/ Chack, Devendra Binding Type: Paperback Number of Pages: 68 Publication Date: 2011/06/19 Language: English Dimensions: 9.02 x 5.98 x 0.16 inches
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The Polaris is the world s most powerful visiblewavelength blue portable laser. Cuttingedge 447nm laser diode technology brings power levels previously only possible using benchtop blue lasers that cost tens of thousands of dollars into the palm of your hand at a fraction of the cost. Its ground breaking 447nm wavelength is not only captivating but can also produce fluorescence effects in some materials. Diode technology means energy efficiency allowing this laser to operate three times as long as DPSS blue portable lasers. Available in power levels from >50mW to >1W sustained output with a 100 duty cycle. >500mW and higher models include free laser safety goggles. With its unmatched power and brilliant blue wavelength the Polaris Blue Portable Laser is truly a guide star for the future of lasers.
The Polaris is the world s most powerful visiblewavelength blue portable laser. Cuttingedge 447nm laser diode technology brings power levels previously only possible using benchtop blue lasers that cost tens of thousands of dollars into the palm of your hand at a fraction of the cost. Its ground breaking 447nm wavelength is not only captivating but can also produce fluorescence effects in some materials. Diode technology means energy efficiency allowing this laser to operate three times as long as DPSS blue portable lasers. Available in power levels from >50mW to >1W sustained output with a 100 duty cycle. >500mW and higher models include free laser safety goggles. With its unmatched power and brilliant blue wavelength the Polaris Blue Portable Laser is truly a guide star for the future of lasers.
The Polaris is the world s most powerful visiblewavelength blue portable laser. Cuttingedge 447nm laser diode technology brings power levels previously only possible using benchtop blue lasers that cost tens of thousands of dollars into the palm of your hand at a fraction of the cost. Its ground breaking 447nm wavelength is not only captivating but can also produce fluorescence effects in some materials. Diode technology means energy efficiency allowing this laser to operate three times as long as DPSS blue portable lasers. Available in power levels from >50mW to >1W sustained output with a 100 duty cycle. >500mW and higher models include free laser safety goggles. With its unmatched power and brilliant blue wavelength the Polaris Blue Portable Laser is truly a guide star for the future of lasers.
The Polaris is the world s most powerful visiblewavelength blue portable laser. Cuttingedge 447nm laser diode technology brings power levels previously only possible using benchtop blue lasers that cost tens of thousands of dollars into the palm of your hand at a fraction of the cost. Its ground breaking 447nm wavelength is not only captivating but can also produce fluorescence effects in some materials. Diode technology means energy efficiency allowing this laser to operate three times as long as DPSS blue portable lasers. Available in power levels from >50mW to >1W sustained output with a 100 duty cycle. >500mW and higher models include free laser safety goggles. With its unmatched power and brilliant blue wavelength the Polaris Blue Portable Laser is truly a guide star for the future of lasers.
The Polaris is the world s most powerful visiblewavelength blue portable laser. Cuttingedge 447nm laser diode technology brings power levels previously only possible using benchtop blue lasers that cost tens of thousands of dollars into the palm of your hand at a fraction of the cost. Its ground breaking 447nm wavelength is not only captivating but can also produce fluorescence effects in some materials. Diode technology means energy efficiency allowing this laser to operate three times as long as DPSS blue portable lasers. Available in power levels from >50mW to >1W sustained output with a 100 duty cycle. >500mW and higher models include free laser safety goggles. With its unmatched power and brilliant blue wavelength the Polaris Blue Portable Laser is truly a guide star for the future of lasers.
Cuttingedge 447nm laser diode technology is what makes this blue laser pointer both unique and affordable. Keep everyone s attention with the Hydra s deep blue light. This
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From the reviews of the first edition: "The technical chapters will be lapped up by semiconductor specialists keen to know more [...] the book includes fascinating material that answers the question: why did Nakamura succeed where many, much larger, research groups failed...
The "blue laser" is an exciting new device used in physics. The potential is now being recognized for its development into a commercial lighting system using about a tenth of the power and with a thousand times the operating lifetime of a comparable conventional system...
This book offers a comprehensive overview of the development, current state, and future prospects of wide bandgap semiconductor materials and related optoelectronics devices. With 901 references, 333 figures and 21 tables, this book will serve as a one-stop source of knowledge on wide bandgap semiconductors and related optoelectronics devices.
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Laser acne treatments will help cure your acne problems once and for all. The Smoothbeam laser is the latest FDA approved equipment to repair skin damaged by acne.
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About the Author
Sarah Martin is a freelance marketing writer based out of San Diego, CA. She specializes in aesthetic medicine, beauty, and skin treatment. For an acne care system or to find out more about laser acne, please visit http://www.vfhcinc.com/
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