Construction of He Ne laser, main components He-Ne laser, characteristics of Helium Neon laser

[@souravverma4647]

Best teacher on KZbin for engineering physics 😂😀😎😭❤️🔥🎉🙏👍

[@vanshtamta9448]

Characteristics of He-Ne laser are:- ~He-Ne(Helium-Neon) laser is a gaseous laser. ~The laser action of this laser is of 4-level pumping scheme. Brewster's law:- It is a law gave in the terms of polarization of light which is mainly used to remove the unwanted wavelengths either from the lens of spectacles or is used to eliminate the wavelengths in the optical renoator/cavity of a laser whose wavelengths are not near 6328 Angstroms. Thank you sir the video cleared my concept!

[@sachinbtecwala]

Yes sir bhot hi cool samja dete hai

[@kartikrameshchavan6662]

Characteristics of He Ne Laser are 1) It is a 4 level Laser 2) High Efficiency Brewster Window not allows unwanted Wave lengths and it acts as a polarizer.

[@entertainstation_]

10:1 not 10:4

[@BhavyaRogheliya1212]

Great explanation ever🎉😊

[@RishabhKanungo]

Great explanation

[@Preeti-r5i]

thank you sir for amazing lecture provide karne k liye

[@nidhipandey7856]

Such a great video thanks sr

[@AS-Kb]

Bahut achha hi smjh aaya h sir tq sir

[@ektasharma7056]

Two characteristics:High efficiency,No external cooling is required. Brewster's law works on eliminating the unwanted wavelength .e.g. in he-ne laser,it gives its stables output i.e. 6328A. Other one get eliminate. Sir ,the way uh teach ,almost the concerning topic leave its shape in mind🙂. Thankew so much sir for making it little easier🥰.

[@vkgamer0155]

Love 😘

[@vaibhavsaxena9723]

Brewster's law is the maximum polarisation which can be achieved by transmission of light ray on a transparent medium

[@adityaawasthi1877]

Sir you are great ♥️✌️

[@manasmalhotra106]

characteristics of the neon laser 1. it is a 4-level laser 2. it does not require any external. 3. active medium used is HE with NEON in the ratio of 10:4 4. it is highly efficient if compared with Ruby Laser brewsters window: it is an device which is used in He-Ne laser and it is used to prevent unwanted wavelength furtehr getting an desired output of 6328angstrom.

[@Kartik__Sharma]

10:1

[@vanshchauhan6895]

10:1

[@BhaveshSanwal-jj5es]

CHARACTERSTICS OF LASER- IT IS A FOUR STAGE LASER. IT IS A COMBINATION OF HE-NE GAS. IN WHICH IT IS COMBINED IN RATIO 10:1. NE ATOMS IS RESPONSIBLE FOR LASER. IT IS HIGH EFFECTIVE LASER CONTINUES LASER OBTAIN. BREWSTERS WINDOW- it is a substrate act as a polariser used to eliminate unwanted wavelength. THANKYOU SIR FOR YOUR EFFORTS.

[@arunramesh8133]

Sorry sir, but I will be writing all the charactertistics as you were an excellent teacher :) 1. Gas based laser 2. First continuous laser, as Nd-YAG and Ruby lasers had pulsed outputs 3.Active Medium= 10:1 mixture of He and Ne respectively 4. Electrically Pumped 5. 4-level laser 6. Output wavelength falls in the re spectrum i.e usually 6328 Angstrum 7. No external cooling required 8. Long life laser All these qualities makes it widely used in scientific experiments and laboratories. Brewster's Window is basically a polarizer that eliminates the unwanted wavelegths+unwanted reflections.

[@patelaman1234]

Use are amazing sir ji......love u...

[@editingKingsalim]

One of the best teaching sir ji ❤️❤️

[@teeransingh5432]

Thank you sir great to lecture ❤❤❤❤

[@Toppers-rs2zg]

Great man!!!

[@jayanshahid913]

Thank you for sharing this topic

[@Code_with_pavan]

Whh prabhu❤ 22:10

[@padmakartripathi2846]

Such a great video 👍👍👍👍 Sir thanks 👍

[@deepanshimalik7820]

Sir blessed is the least word that can be said when it's came on your video.. Greetings from Haryana....

[@TechnicalPhysics]

Thanks and keep sharing

[@ajaychintala4234]

Sir I am from ap your lecturers really awesome sir Please continue 🙏 🙂

[@tukarambokare1126]

Lot of Love From MGMCOE nanded

[@santandharm-knowledge]

High efficiency No external pumping in laser Brester's law - it is act as polariser used and eliminated unwanted wave length. 😍😍

[@subhamkumar2057]

basic use of brewster glass . 1.unwanted wavelength has donot out through the cavity only 6283angstrom range of photon is coming out through asa out put light .

[@33rahulkumarjhaxlm36]

1. characteristics - 4 level,6328 output,brewster window is used to get desired output wavelength

[@rambhogBais]

Badiya

[@silversurfur69]

very good teacher

[@TechnicalPhysics]

Happy to help, keep learning

[@Mrjoy_108]

Nice explanation sir thnx sir 😌

[@rajmangaltiwary9879]

4 level laser , electric pumping , active medium he with ne , A Gus laser , High efficiency, Continuous laser output 6328Å

[@amanrana3036]

1) it is 4 level laser 2) electric pumping is used Brewster window are which eliminate the unwanted wavelength

[@saanvikhurana24_9]

characteristics are 1. it is a gas laser 2. countionous output brewster window is used to not allow unwanted wavelenght to escape. Brewster’s law is a relationship of light waves at the maximum polarization angle of light.

[@yadav26388]

Mai aapke laser ke sare videos dekhe sir kafi mast sir ..college chutti h aur syllabus ka kafi tension tha ...pr mai laser pura khatm kar Lia thanks sir

[@vinayaksharma-ys3ip]

Best teacher

[@yadavakhil7379]

Really helpful video thanks 😊

[@stayhappy6419]

Characteristics : 1)It is a gas laser 2)It is a 4 level Laser 3) Electric Pumping Is used in it 4)No Cooling System Is there in it 5)It gives output of wavelength 6328 Å 6) Active Material : Helium and Neon in the ratio of 10:1 7)It gives Continuous Output Brewster Window : Does Not Allow Unwanted Ray of light to refract/transmit

[@prateekvaibhav2825]

Brewster's window:-It is a substrate act as polariser which is used to remove unwanted wavelengths

[@kajalmavi5965]

Thankyou so much for making this helpful video... Nice explanation sir 👍👍

[@samijatav4049]

Mast 👌 sir

[@Mrjoy_108]

Brewsters window is used to eliminate different unwanted wavelength

[@ritikajaiswal1704]

Brewster's law = Malus discovered that when an unpolarised falls on the surface of any transparant substance, the reflected and refracted rays are partially plane polarized and the degree of polarisation depends on the angle of incidence. Brewster discovered a relation between polarising angle and refractive index of the transparant substance w.r.t surrounding medium i.e., ,u= tan ip

[@Coding_problems]

*Characteristics of he ne laser* 1.tube length upto 80cm And diameter 1.5cm (hint:H shaped laser) 2. Optical cavity/resonator: it has two mirrors (m1,m2) M1: 100%reflecting M2: partially reflecting (To make 100%reflecting mirror silver coating is done on the mirror m1 *Partially reflecting* Less silver coating is done on mirror m2) 3. (Brewster's law: this law is used to eliminate unwanted wavelengths from a polarizer) *Brewster window*: It doesn't emit wavelength which are not equals to 6328 A⁰ . It acts as a polarizer

[@TechnicalPhysics]

its good practice

[@Coding_problems]

@@TechnicalPhysics sir, please make a video on ND.YAG laser and semiconductor laser🙏🙏

[@hrgupt3944]

Thanks a lot sir

[@devanshisrivastava1784]

Sir aap bahoot acche se explain kerte hai aap her chiz btate hai👍

[@familynsut-sr8ds]

It is 4 level laser It doesn't not require cooling source 6328A Good efficiency Brewsters law is the maxm polarisation which can ve achieved by transmission of light ray on a transparent medium....

[@kumargaurav2875]

Brewster angle is a polarisation angle.It is a angle at which unpolarized light polarizes and reflects when incident on a transparent medium. Here Brewster windows are used in order to get the output wavelength of desired wavelength of 6328 angstrom. The most important property of He Ne laser is that it is low power consuming device and output can be withdrawn from it for long period of time.

[@TechnicalPhysics]

GOOD

[@SatyamShukla-i3n]

charactersitcs: 1. high efficiency 2. contionous beam output 3. 4 level laser Brewster window are those window in which it will not enter the unwanted rays in the object. it return back of unwanted rays.

[@NitishKumar-kf9yh]

Brewster angles :- Brewster's angle is the angle of incidence at which light with a specific polarization is transmitted through a transparent dielectric surface without reflection. It is also known as the polarization angle. characteristics :-Cost: He Ne lasers are low-cost. Life-time: He Ne lasers have a short life-time. Warm-up time: He Ne lasers have a long warm-up time.😊😊😊😊😊😊

[@mohammadarquam3419]

Characteristics of laser : 1). 4level of energy 2). High efficiency compared to Ruby Laser Brewster Law: ∅=tan-¹(n2/n1) ∅ : Brewster angle n1 : incident medium n2: refracted medium

[@b.k.474]

Sir apka lecture super 👍👍👍 ....I am form West Bengal ❤️❤️...

[@TechnicalPhysics]

Thanks for watching

[@b.k.474]

Sir next topic polarization sir plzz 🙏🙏🙏

[@statusgk9153]

It is a 4 level laser. It is a gas laser.

[@vanshtyagi5337]

❤❤

[@kevinthegamer8937]

Brewster window: it is a substrate act as polarizer which eliminates the unwanted wavelengths. 22:08

[@shruti1078]

He catalyst ke thara kaam karta h Or ye highly efficient hota h Ruby laser se or contious hota h

[@sumitchandra5994]

Characteristics Gas laser and high efficiency Brewster windows It works as a polarizer and eliminate the unwanted wavelengths inside the laser Brewster law It is a law which finds the angle for which when the unpolarized light falls on the surfaces then it will give a perfectly polarized light.

[@vibhutisahu5376]

characterstics of he-ne llaser are 1. continous laser output 2.electric pumping is used brewster window never allows unwanted wavelengths as it is set in a specific angle and it acts as a polarizer

[@mathspoint570]

Character stics of He Ne laser 1 gas laser 2.4level laser 3 high efficiency 4.no external cooling required 5 electric pumping source 6activ material is He Ne with ratio 10:1

[@hariomverma5468]

It's a 4 enrgy level laser. It gives a continuous laser output. In this laser Brewster window behaves like polariser which is designed at the concept of Brewster law by which a specific type of light is emitted

[@divyaanshuagrawal3383]

Thank you Sir! Characteristics: 1)Active Medium is He-Ne mixture in ratio (10:1) 2)Pumping source(Electrical source) 3)Electric discharge in gas tube excites electrons from ground state to the excited state. 4)High efficiency 5)Continuous output(unlike Ruby Laser)

[@Shining_Star193]

4 level High efficiency Brewster window act as polariser used to eliminate unwanted wavelength

[@shanik-10]

charcteristecs of He Ne laser are 1)it is a gas laser 2)high efficeincy 3)no external cooling required 4)4th label laser, Brewester window not allows unwated wave lenghths , is a subtrate act as a polariser name _ riyan kainat (CSE)

[@anujuniyal1702]

characterstics 1. High efficiency (continious laser) 2. 4 level laser 3. DC source is used as electric pumping source

[@arnavchaudhary8492]

Characteristics it a gas laser with four levels and give output in continuous form with wavelength of 6328 angstrom with high efficiency using electric pumping ,no external cooling required and brewsters window used to eleminate unwanted wavelength it's act as a polarizer

[@komal1397]

*Two Characteristics of He-Ne Laser* : • It is a gas laser with four level laser • Active medium is helium & neon (10:1) *Brewsters window* : It is a substrate act as polariser and used to get desired wavelength or eliminate unwanted wavelength *Brewster law* : u = tan( I*P)

[@ytankit733]

He-Ne laser. It is a gas laser. It is a four level laser. high efficiency and continious. Electric pumping is used. Brewster window act as a polariser to remove unwanted wavelength

[@TechnicalPhysics]

good practice when write here

[@subhamkumar2057]

helium neon laser is a gas laser 1 . it has 4 energy level. 2.high efficiency . 3.active material helium 4.no external cooling material addition. 5.continuous out put.

[@urjasingh4743]

in he -ne laser electrical pumping is used and 4 level laser is used

[@gauravkumarbhardwaj7562]

1. 4 level laser 2. High efficiency laser

[@mvenkataadityaprakash9485]

Brewsters window allows only the required wavelength of light to pass through it and remaining is reflected back into the medium(or) abosrbed

[@memory_maker-kc9wz]

tnqqq sir

[@raushanyadav7392]

1) It is 4 level laser. 2) High efficiency. 3) No external Colling is required. - Brewsters window are used to eliminate unwanted wavelength.

[@CHATURACHATURBHUJA]

10:22 : Construction of He-Ne Laser

[@mahendrasinghrao9074]

You are good ...Iam from rajasthan❤️

[@TechnicalPhysics]

Thanks for this faith dear Mahendra. Do share with your friends ❤️

[@surajnayakraghuvanshi2495]

Sir Semiconductor laser pr ek video bnaiye please

[@ADITYA20056]

High efficiency and electrical pumping is used

[@massandclass4443]

Brewster's angle is an angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent dielectric surface, with no reflection

[@gauravkumarbhardwaj7562]

Brewster window is used to eliminate unwanted wavelength

[@TechnicalPhysics]

good

[@dipanshubaranwal9898]

rayleigh jeans law and plank law pr video bnaiye sir🙏🙏🙏

[@apkabhai3109]

Charactics of he - Ne LASER 1) 4 Level laser 2) Active material use He -Ne(10:1)

[@Unplugged_sukoon]

Two characteristics of He- Ne laser are :- a.) It is 4 level laser b.) It uses electrical pumping

[@ShivaKumar-oo1zv]

❤️❤️❤️❤️

[@sidd9295]

Characteristics High efficiency, Gas Laser, 4 level laser, Brewsters window use to to eliminate unwanted wavelength

[@shreyasonal6849]

understood sir ,thank you

[@neeturawat6413]

Sir hum kisi b laser m maximum kitne energy levels daal sakte hain ?

[@ABHISHEKKUMAR-ql2lp]

Very helpful sir thanks from bihar

[@praveenvaishya807]

It gives continuous wavelength... no required cooling system

[@shivangibatham5611]

Gas laser 4 level laser Helium neon active material (10:1) Electric pumping No external cooling Continuous laser High efficiency B w-is used to eliminate extra wavelengths.

[@techguy9427]

Sir please make video on wave optics according to aktu syllabus

[@techguy9427]

Nice

[@zamilkhan9412]

Thankiyou sir

[@omgupta3582]

Its produce 6328 armstrong wavelen, he and ne is used as active material,

[@harshitsharma7357]

characteristics-- it is a gas laser 4 level laser more efficiency Brewster window is use to eliminate unwanted wavelength which are present over there

[@Spideyyy87]

Tq sir

[@jayanshahid913]

Bruster law is nothing but it is related to polarisation law

[@anmolpandey5076]

❤

[@vishwamohan4110]

Brewster window used to eliminate unwanted wavelength

[@gskerbecs9513]

A1 4 Level Laser And Gas Laser A2 Brewsters Window Act As A Polariser To Remove Unwanted Wavelengths.