Njupụta ike na ike ike nke laser

Njupụta ike na ike ike nke laser

Njupụta bụ anụ ahụ nke anyị maara nke ọma na ndụ anyị kwa ụbọchị, njupụta nke anyị na-akpọtụrụ bụ njupụta nke ihe, usoro a bụ ρ=m/v, ya bụ, njupụta dị nhata na oke na-ekewa site na olu. Ma njupụta ike na ike ike nke laser dị iche iche, ebe a na-ekewa site na mpaghara kama olu. Ike bụkwa anyị na kọntaktị na a otutu nke anụ ahụ quantities, n'ihi na anyị na-eji ọkụ eletrik kwa ụbọchị, ọkụ eletrik ga-agụnye ike, mba ọkọlọtọ unit nke ike bụ W, ya bụ, J / s, bụ ruru nke ume na oge unit, mba ọkọlọtọ unit nke ume bụ J. Ya mere, ike njupụta bụ echiche nke ijikọta ike na njupụta, ma ebe a bụ irradiation mpaghara nke ntụpọ kama site n'ike n'ike, ebe a na-ekewa n'ime ike nke ike, ebe a na-ekewa n'ime ike nke ike, site n'ikuku nke ike, ebe a na-ekewa ya site n'ike, ebe a na-ekesa ike site n'ike, ebe a na-ekesa ike site n'ike. ike njupụta bụ W/m2, na naubi laser, n'ihi na ebe ntụpọ irradiation laser dị ntakịrị, ya mere a na-eji W/cm2 eme ihe dị ka otu. A na-ewepụ njupụta ike na echiche nke oge, na-ejikọta ike na njupụta, na unit bụ J / cm2. Dị ka ọ na-adịkarị, a na-akọwa lasers na-aga n'ihu site na iji njupụta ike, ebelasers pulsedA kọwara ya site na iji ma njupụta ike na ike ike.

Mgbe laser na-arụ ọrụ, njupụta ike na-ekpebi ma ọ̀ ga-erute ebe maka ibibi, ma ọ bụ ịgbachapụ ma ọ bụ ihe ndị ọzọ eme ihe. Ọnụ ụzọ bụ echiche na-apụtakarị mgbe a na-amụ mmekọrịta nke lasers na ihe. N'ihi na ọmụmụ nke mkpụmkpụ pulse (nke nwere ike na-ewere dị ka anyị ogbo), ultra-short pulse (nke nwere ike na-ewere dị ka ns ogbo), na ọbụna ultra-fast (ps na fs ogbo) laser mmekọrịta ihe, n'oge na-eme nchọpụta na-emekarị na-agbaso echiche nke ike njupụta. Echiche a, na ọkwa nke mmekọrịta, na-anọchi anya ike na-arụ ọrụ na ebumnuche ọ bụla mpaghara mpaghara, n'ihe banyere laser nke otu ọkwa ahụ, mkparịta ụka a dị mkpa karị.

Enwekwara ọnụ ụzọ maka njupụta ume nke otu usu ịgba ogwu. Nke a na-emekwa ka ọmụmụ ihe gbasara mmekọrịta laser-ihe gbagwojuru anya. Otú ọ dị, taa ibuo ngwá na-mgbe niile na-agbanwe, a dịgasị iche iche nke usu obosara, otu usu ume, ugboro ugboro na ndị ọzọ parameters na-mgbe niile na-agbanwe, na ọbụna mkpa ka tụlee n'ezie mmepụta nke laser na a usu ume fluctuations n'ihe banyere ike njupụta tụọ, nwere ike ịbụ kwa rough.Generally, ọ nwere ike roughly weere na ike njupụta bụ nkezi nke oge adịghị ekewa site na oge njupụta ike adịghị ekewa site na oge pulse ike. oghere). Otú ọ dị, ọ bụ ihe doro anya na n'ezie laser waveform nwere ike ọ gaghị abụ akụkụ anọ, square ife, ma ọ bụ ọbụna mgbịrịgba ma ọ bụ Gaussian, na ụfọdụ na-ekpebisi ike n'ihe onwunwe nke laser n'onwe ya, nke a na-akpụzi karị.

A na-enyekarị obosara nke pulse site na ọkara nke ịdị elu nke oscilloscope na-enye (nke zuru oke ọkara obosara FWHM), nke na-eme ka anyị gbakọọ uru nke ike ike site na njupụta ike, nke dị elu. A ga-agbakọ ọkara dị elu na obosara kwesịrị ekwesị site na ntinye, ọkara elu na obosara. Enwebeghị nkọwa zuru ezu ma ọ dị ụkpụrụ nuance dị mkpa maka ịmara. N'ihi na ike njupụta n'onwe ya, mgbe ị na-eme mgbakọ na mwepụ, ọ na-emekarị ka ọ bụrụ na ọ ga-ekwe omume iji otu ume iku ume iji gbakọọ, otu ume ume / obosara obosara / ntụpọ ntụpọ, nke bụ ikike nke ohere, wee mụbaa site na 2, n'ihi na ike dị elu nke ohere ohere, nkesa nkesa na-adịghị mkpa Ga-eme ihe dị otú ahụ. wee mụbaa site a radial nkesa okwu, Ma ị na-mere.