Laser

What is 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 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. 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. Temporal coherence can be used to produce pulses of light as short as a femtosecond.

Among their many applications, lasers are used in optical disk drives, laser printers, and barcode scanners; 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 laser lighting displays in entertainment.

Questions and answers on "Laser"

hi..female 22 years old...and I want to remove favors from face without surgery ...is these can be done by laser or there is any way to be removed without surgery ?

doctor1 MD

hi
it is possible to remove it without surgery.
laser r there to remove hair permanent
u need to take average 8-10 session of laser
result depend on u r skin type n machine

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im 14 yrs old am i able for a laser treatment? hi im 14 years old and i wanted to know if i was elligible for a laser treatment for my upper lip.

doctor1 MD

Hi,

Side Effects for Teenagers:

The side effects of laser hair removal have been lessened tremendously with the latest IPL technology. However, teens should be aware of the possibility of side effects. Red discoloration of the area treated may occur for many days after a laser procedure. Having...

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Hi doctor I am 38 years and I have pigmentation on both of my cheeks for the last 2 - 3 years. what should do. will laser remedy solve my problem ?

doctor1 MD

Hi...Mr.Shaalu Bedi..,
welcome to HCM..,
Thanks for query..,
38 years old ...and pigmentation of both cheeks.....it could be..,
MELASMA......
Treatment is favourable...,
1) Topical treatment.....morning times ..sunscreen lotion..Suncare or Suncote..,
night times........Ban a tan...

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hi dr plz tell me which laser is best & permenent lase name thanks

doctor1 MD

hi uzma
there are mainly 3 type of laser use in hair removal
diode is very effective in indian skin
nd yag laaser is also effective
light base IPL machine is also used
u need to consult dermatologist and let him decide which laser is use ,depend upon ur skin type ,hair type ,density ,sun damage...

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hi there are hair on my chin...i have taken the laser treatment also for hair removal but still no change...now i used to remove it by thread.. is there any thing which decreases the hair over there ... It irritates me ...

doctor1 MD

Hi!kanchan,
Welcome To HealthcareMagic forum,

Kanchan there are couple of reasons for excess facial hair which should be ruled out ,even though laser is the best option for it.If its familial then the results of laser are better .And if it is due to hormonal imbalance ,then it would require more...

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hey i m 18 yrs oldnd i hav lot of facial hairs in upperlips nd on d side of cheekswill u plz tell me how much is d total cost for d laser treatment

doctor1 MD

Dear Priti,

Laser hair removal cost depends upon the type of the technology used and number of Laser shots given. Different machines like IPL, Nd-YAG Laser or Diode Laser etc. can be used. The cost will be relatively less for IPL and more for Diode Laser.
Usually a patient requires 4-6 sittings...

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female 23 years old....is laser has any complication on long run if we use it on face to remove dark brown spots?

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how much is the cost of laser operation to remove the hair of face only.?

doctor1 MD

hi
it is procedure and not operation.
it is done every 1 to 2 month
average 7-10 session require
full face laser cost from 2000 to 5000 per session depending on density of hair

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i need to ask the query about pregnancy , tube has been closed that s why our family doctor suggested to go for test tube baby center but please let me know is there any laser treatment for this?

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Recent questions on  Laser

doctor1 MD

hello sir,i m a 17 year old boy
the problem is that i have too much hair all over my body but that is not the main problem.I am getting hair all over my nose and my face.My eyebrows are also getting thicker and i am too upset because of this.I know that laser treatments have a lot of side effects and one more thing i have realised that the whenever i masturbate the hairs show an increase in length.
Could u please help..??
thank you..!!

doctor1 MD

my daughter has a birthmark running all the way from her forehead to upper lip - red in colour. Very light on the forehead - but very intense on the upper lip. I have been told it is a mild version of nevus flammeus. However if I get it treated through laser, is there a chance of it reappearing?

doctor1 MD

twins took birth of 6 and half months.one died for want of ventilator other kept on ventelator gone blind due to excess oxygen.one eye given laser treatment burnt.child is completely blind both eyes for ratina detachment .Is there any treatment of blindness now on i.one yey or ii.both eyes? s.s.gangwar.

doctor1 MD

My query is to a dermatologist. My Name is Mrs. Nair, age- 38 years, female. My problem is listed below:

In 2006 April I started having hyper pigmentation on my face, neck and upper back. I consulted a specialist at Manipal Hospital, Bangalore and underwent blood test. As per the blood test my IGE (immunoglobin E) was 460, high above normal. Therefore, I underwent a patch test and the result of the patch test said I was allergic to PPD and some parabens. So my problem was diagnosed as hyper pigmentation due to contact dermatitis. I had used hair colour since February 2006 and as per this result I completely stopped using the same. I underwent chemical peeling, micro dermabrasion and laser treatment subsequently. My facial skin improved a bit, but not much. I had to shift to Egypt on official assignment and here again I consulted two dermatologists. They suggested a skin biopsy for Macular Amyloidosis and a biopsy was done. As per the biopsy report "bundles of collegen found in the dermis and slightly reactive to congo red staining. diagnosis: Amyloidosis."I do not have any itching on the skin except sometimes which i take as due to dryness. Can you please confirm what is my condition? Is there any treatment for this? I would really be grateful for your reply as I cannot consult a doctor from India face to face now as I am still in Egypt.

doctor1 MD

I have had a small bump on my tongue for about 10-15 years. It doesn't hurt and has never changed shape or size. I also chew my tongue when nervous or concentrating (so a lot of tongue chewing every day) - which makes me think this is Fibroma . If...

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