بعد چهارم | تندیس | طراحی تندیس| ساخت تندیس | لوح تقدیر
تندیس , طراحی تندیس , ساخت تندیس , لوح تقدیر , متن لوح تقدیر تندیس , طراحی تندیس , ساخت تندیس , لوح تقدیر , متن لوح تقدیر
آخرین بروز رسانی: سه شنبه, 07 فروردين 1403 
تندیس | طراحی تندیس | ساخت تندیس | لوح تقدیر | متن لوح تقدیر | لوح سپاس | نشان سینه

لیزرهای گازی

Gas laser

Edited By: Bode4.com

A gas laser is a laser in which an electric current is discharged through a gas to produce coherent light. The gas laser was the first continuous-light laser and the first laser to operate "on the principle of converting electrical energy to a laser light output. The first gas laser, the Helium–neon laser (HeNe), was co-invented by Iranian physicist Ali Javan and American physicist William R. Bennett, Jr. in 1960. It produced a coherent light beam in the infrared region of the spectrum at 1.15 micrometres.

Types of gas laser

Gas lasers using many gases have been built and used for many purposes.

The Helium–neon or HeNe laser can be made to oscillate at over 160 different wavelengths by adjusting the cavity Q to peak at the desired wavelength. This can be done by adjusting the spectral response of the mirrors or by using a dispersive element (Littrow prism) in the cavity. Units operating at 633 nm are very common in schools and laboratories because of their low cost and near perfect beam qualities.

Carbon dioxide, or CO2 lasers can emit hundreds of kilowatts at 9.6 µm and 10.6 µm, and are often used in industry for cutting and welding. The efficiency of a CO2 laser is over 10%.

Carbon Monoxide or "CO" lasers have the potential for very large outputs, but the use of this type of laser is limited by the extreme toxicity of Carbon Monoxide gas. Human operators must be protected from this deadly gas and it is extremely corrosive to many materials included seals, gaskets, etc. Thus extreme care must be used when constructing and using CO lasers.

Argon-ion lasers emit light in the range 351–528.7 nm. Depending on the optics and the laser tube a different number of lines is usable but the most commonly used lines are 458 nm, 488 nm and 514.5 nm.

A nitrogen transverse electrical discharge in gas at atmospheric pressure (TEA) laser is an inexpensive gas laser producing UV light at 337.1 nm.

Metal ion lasers are gas lasers that generate deep ultraviolet wavelengths. Helium-silver (HeAg) 224 nm and neon-copper (NeCu) 248 nm are two examples. These lasers have particularly narrow oscillation linewidths of less than 3 GHz (0.5 picometers), making them candidates for use in fluorescence suppressed Raman spectroscopy.

Chemical lasers

Chemical lasers are powered by a chemical reaction, and can achieve high powers in continuous operation. For example, in the Hydrogen fluoride laser (2700–2900 nm) and the Deuterium fluoride laser (3800 nm) the reaction is the combination of hydrogen or deuterium gas with combustion products of ethylene in nitrogen trifluoride. They were invented by George C. Pimentel.

Excimer lasers

Excimer lasers are powered by a chemical reaction involving an excited dimer, or excimer, which is a short-lived dimeric or heterodimeric molecule formed from two species (atoms), at least one of which is in an excited electronic state. They typically produce ultraviolet light, and are used in semiconductor photolithography and in LASIK eye surgery. Commonly used excimer molecules include F2 (fluorine, emitting at 157 nm), and noble gas compounds (ArF [193 nm], KrCl [222 nm], KrF [248 nm], XeCl [308 nm], and XeF [351 nm]).

Advantages

  • High volume of active material
  • Active material is relatively inexpensive
  • Almost impossible to damage the active material
  • Heat can be removed quickly from the cavity

Applications

  • He-Ne laser is mainly used in making holograms.
  • In laser printing He-Ne laser is used as a source for writing on the photosensitive material.
  • He-Ne lasers were used in reading the Bar Code which is imprinted on the product. They have been largely replaced by laser diodes.

 

جدیدترین تندیس ها و محصولات

واحد فروش دستگاههای لیزر بُعد چهارم

واحد فروش انواع ماکت هواپیما و هلیکوپتر بُعد چهارم

انواع محصولات خاتم کاری

فروشگاه اینترنتی انواع ماکت هواپیما و هلیکوپتر

جدیدترین مشتریان بعد چهارم

بانک رفاه استان مازندران بانک رفاه استان مازندران
جمعیت هلال احمر استان خوزستان جمعیت هلال احمر استان خوزستان
شرکت مهندسی توانمند برق اصفهان شرکت مهندسی توانمند برق اصفهان
سازمان رفاهی تفریحی شهرداری شاهین شهر سازمان رفاهی تفریحی شهرداری شاهین شهر
بنیاد شهید و امور ایثارگران استان بوشهر بنیاد شهید و امور ایثارگران استان بوشهر

صفحه اينستاگرام بعدچهارم

كانال تلگرام بعدچهارم

بانک متن لوح تقدیر

بانک قاب و حاشیه لوح تقدیر

بانک آرم و لوگو

بانک نقوش اسلیمی

بانک وکتورهای کاربردی

آموزش نرم افزار کورل دراو

عضویت در خبرنامه

اطلاعات تماس

دفتر مرکزی:
اصفهان - خیابان استانداری - خیابان فرشادی - ساختمان بُعدچهارم

کد پستی: 8146746791

تلفن: 1234 24 32 - 031

همراه فروش: 3699 905 0912

ایمیل: info@Bode4.com

 وب سایت: www.Bode4.com

سامانه پیام کوتاه: 30007650008090 

 توجه: مراجعه حضوری فقط با قرار قبلی امكان پذير است. 


   بُعد چهارم ، هيچ شعبه ديگری در سراسر ايران ندارد.   


درگاه پرداخت اینترنتی

درگاه پرداخت اینترنتی بانک ملت

ارسال سفارش به تمام نقاط ایران

بُعد چهارم، فرصتی برای تخیلات شما

پورتال کارمندان شرکت بُعد چهارم


جستجوی سریع در بُعدچهارم