Matakan microstructures na lokaci-lokaci akan fina-finai na chromium an shirya su ta hanyar fasahar laser nanosecond na SLM ta taimaka

2024-09-26

Modulator haske na sararin samaniya wani abu ne mai ƙarfi wanda zai iya canza girman girma, lokaci da yanayin yanayin hasken abin da ya faru a ainihin lokacin ƙarƙashin ikon siginar waje. Aikace-aikacen na'urar daidaita haske ta sararin samaniya a cikin sarrafa Laser na iya fahimtar ƙirar katako mai ƙarfi, kuma yana da fa'idodin shirye-shirye, mai sauƙin sarrafawa, sauƙin haɗawa, ƙarancin hasara da mitar wartsakewa. Kuma tare da haɓaka kofa na lalacewa na masu daidaita hasken sararin samaniya, filayen aikace-aikacen na sarrafa Laser kuma suna faɗaɗa, kamar masana'antar tsarin metamaterial, microfluidic, bugu 3D, ajiyar gani, gyare-gyaren kayan abu, ɗigon ƙima da sauran filayen.

Bayanan rubutun:

A cikin wannan takarda, an gabatar da ingantacciyar dabara don shirya nau'ikan nau'ikan nau'ikan nau'ikan zamani akan fina-finai na chromium (Cr) tare da kauri daban-daban ta amfani da na'urar hasken sararin samaniya (SLM) ta taimaka 1064nm nanosecond Laser. Don fina-finai na 1000nm Cr, ana iya shirya MG-LIPSs guda biyu na yau da kullun ta hanyar haɗa nau'ikan grating na lokaci-lokaci (MG) wanda SLM ke samarwa tare da tsarin shimfidar wuri na lokaci-lokaci (LIPSS) na laser, wanda ke sarrafa halayen yanayin yanayin ta hanyar motsi na laser, adadin ingantattun bugun jini da lokacin MG. Sakamakon tasirin MG da LIPSS, saman tsarin MG-LIPSS yana nuna launukan tsarin anisotropic. Saboda tsananin tsananin zafi na fina-finai masu sirara idan aka kwatanta da MG-LIPss, an kafa wani tsari mai rikitarwa na lokaci-lokaci wanda ya ƙunshi MG da fasa (MGC) akan finafinan 200nm Cr. Ko da yake ana rarraba tsagewar MGC ba da gangan ba, MGC yana da dogon tsari na sifa na wasu watsawa kuma ana iya amfani da shi azaman grating na watsawa tare da tasirin diffraction. Wadannan sakamakon sun nuna cewa SLM-tushen haske filin modulated Laser aiki samar da ingantaccen, tattalin arziki da kuma sarrafawa hanya domin shirya babban yanki lokaci-lokaci Tsarin a kan Cr fina-finai. Bugu da ƙari, ana iya amfani da canje-canje a cikin kauri na fim don gano ƙananan ƙananan ƙwayoyin cuta tare da ƙayyadaddun kaddarorin don aikace-aikace daban-daban, irin su abubuwan da aka gyara da matakan hana karya.

Wadannan wani bangare ne na tsarin gwaji da sakamako:

Madogarar hasken tana amfani da Laser nanosecond na kasuwanci, wanda ke ba da Laser pulse pulse na layin layi na 1064nm, 50ns. An saita mitar maimaitawa zuwa 3kHz yayin gwajin, kuma madaidaicin ƙarfin fitarwa na Laser shine 0.45W. Hasken da ke fitowa daga Laser yana wucewa ta cikin madubi mai faɗaɗa katako na 4 ×, ta yadda hasken hasken ya cika da ruwa mai haske crystal haske surface manufa. Ana amfani da na'urar daidaita haske ta sararin samaniya (FSLM-2K70-VIS) a cikin gwajin, girman pixel shine 8um, kuma ƙuduri shine 1920 × 1080. Bayan an daidaita shi ta hanyar na'ura mai haske na sararin samaniya, ana yin shi akan samfurin ta hanyar ruwan tabarau, kuma ana kula da tsarin sarrafawa a ainihin lokacin ta hanyar CCD don tabbatar da cewa samfurin samfurin yana cikin jirgin sama mai sarrafawa. Gerchberg Saxton algorithm ne ya samar da hologram.

FIG. 1 (a) Na'urar gwaji (Mai sarrafa haske na sararin samaniya, samfurin: FSLM-2K70-VIS); (b) Asalin katako da gyare-gyare.

FIG. 2 SEM ilimin halittar jiki na 1000nmCr fina-finai na bakin ciki da MG-LIPSS suka kirkira a karkashin 4 daban-daban lokacin daidaitawa Γ yayin da kwararar laser ke ƙaruwa. girman: 5μm.

FIG. 3 SEM ilimin halittar jiki na MG-LIPSS kafa ta (a) (c) 1000nmCr fina-finai a ƙarƙashin lambobi daban-daban masu tasiri. girman: 5μm.

FIG. 4 (a) 0.27J/cm² da (e) 0.32J / cm² sun dace da ma'aunin AFM na tsarin MG-LIPSS a ƙarƙashin iska mai haske na laser daban-daban, bi da bi. (b) da (f) sun dace da saurin juzu'i biyu na Fourier na hotunan SEM (a) da (e), bi da bi. (c) da (d) zane-zane masu girma biyu na LIPSS da sassan giciye MG daidai da (a) MG-LIPss. (g) da (h) zane-zane masu girma biyu ne na sassan LIPSS da MG masu dacewa da (e) MG-LIPss. girman: 5μm.

Hoto 5 (ab) Bakan MicroRaman na MG-LIPSS da aka shirya a filayen Laser daban-daban guda biyu F a wurare daban-daban. (cf) Sakamako na EDS na MG-LIPSS da aka shirya a filayen Laser daban-daban F (ana yiwa alamar tarawa alama cikin ja a cikin adadi). girman: 5μm.

FIG. 6 SEM ilimin halittar jiki na MGC da aka kafa a ƙarƙashin yanayin aiki daban-daban don fim ɗin Cr a 200nm. (a) Γ2 = 8 μm, F = 0.16 J/cm². (b) Γ3 = 9 μm, F = 0.16 J/ cm². (c) Γ4 = 13 μm, F = 0.16 J/cm². (d) Γ4 = 13 μm, F = 0.30 J/cm². girman: 5μm.

Hoto 7 Launin tsarin bakan gizo na MG-LIPSS. (a) Jadawalin haske mai haske na MG-LIPSS gauraye na lokaci-lokaci akan fim ɗin 1000nmCr, tare da LIPSS da MG suna samar da launukan tsarin bakan gizo a cikin kwatance guda biyu, bi da bi. (b) Tsarin halayen Sinanci na "Jami'ar Sun Yat-sen" an lullube shi da 1000nm Cr akan gilashin gilashi tare da diamita na 100 mm. (c) Samfuran da aka sarrafa. (d) da (e) canza tsarin "Jami'ar Sun Yat-sen" da tsarin dragon bi da bi. (f) da (g) MG-LIPSS "3" wakilci daban-daban ne na launuka na tsarin iridescent a kusurwoyin kallo daban-daban. Girman: 5mm.

Ma'auni na na'urar daidaita hasken sararin samaniya da aka yi amfani da ita a wannan gwaji sune kamar haka:

Lambar samfurin	FSLM-2K70-P03	Nau'in daidaitawa	Tsarin tsari
Liquid crystal iri	Nau'in nunawa	Grey matakin	8 bits, 256 matakan
Yanayin crystal ruwa	PAN	Yanayin tuƙi	adadi
Ƙaddamarwa	1920×1080	Girman Pixel	8.0m ku
Yanki mai tasiri	0.69" 15.36mm × 8.64mm	Abun cikawa	87%
flatness(PV)	Kafin daidaitawa: 5λ Bayan calibration: 1λ	flatness(RMS)	Kafin daidaitawa: 1/3λ Bayan daidaitawa: 1/10λ
Sake sabuntawa	60Hz	Lokacin amsawa	≤30ms
Ingantaccen gani	75%@1064nm	Angle na daidaitawa	0°
Kewayon mataki	2π@1064nm Max: 2.1π@1064nm	Kewayon Spectral	450nm-1100nm
Gamma daidaita	goyon baya	Gyaran lokaci	goyon baya (808nm/1064nm)
linearity	≥99%	kwanciyar hankali lokaci(RMS)	≤0.13π
Ƙofar lalacewa	Ci gaba: ≤20W/cm2 (babu sanyaya ruwa) ≤100W/cm2 (mai sanyaya ruwa)	Ingantaccen diffraction	1064nm ku 60% @ L8 66% @ L16 75% @ L32

Domin kara fadada aikace-aikacen na'urar daidaita hasken sararin samaniya a cikin masana'antu, an haɓaka wannan takardaBabban lalacewa, murabba'in babban murabba'i mai daidaita hasken sararin samaniya:

Lambar samfurin	Saukewa: FSLM-2K73-P03HP	Nau'in daidaitawa	Tsarin tsari
Liquid crystal iri	Nau'in nunawa	Grey matakin	8 ko 10 bits na zaɓi
Yanayin crystal ruwa	PAN	Yanayin tuƙi	adadi
Ƙaddamarwa	2048×2048	Girman Pixel	6.4m ku
Yanki mai tasiri	0.73" 13.1mm × 13.1mm	Abun cikawa	93%
Sake sabuntawa	60 Hz (8bit)*	Shigar da wutar lantarki	12V 3 ku
Angle na daidaitawa	0°	Bayanan bayanai	HDMI
Kewayon mataki	2π@1064nm Max: 3.5π@1064nm	Kewayon Spectral	1000nm-1100nm
Ingantaccen gani	95%±5%@1064nm	Lokacin amsawa	≤30ms
Gyaran Gamma	goyon baya	Gyaran lokaci	Taimako (1064nm)
linearity	≥99%	Kwanciyar lokaci (RMS)	0.03π
Ƙofar lalacewa	Ci gaba: ≤1000W/cm2 (babu sanyaya ruwa) Pulse: Mafi girman ƙarfin ƙarfi (10GW/cm2) Matsakaicin ƙarfin ƙarfi (100W/cm2) @1064nm/290fs/200KHz (ruwa sanyaya)	Ingantaccen diffraction	1064nm ku 56% @ L8 72% @ L16 85% @ L32

Rubuta a karshen:

Tare da ci gaba da haɓaka fasahar sarrafa Laser da kuma karuwar buƙatun madaidaicin madaidaicin ma'auni mai inganci, mai sarrafa haske na sararin samaniya, a matsayin maɓalli mai mahimmanci na gani, zai taka muhimmiyar rawa. A aikace-aikace na sarari haske modulator a Laser aiki ba a iyakance ga guda fasaha filin, da fadi da aikace-aikace bege rufe da dama filayen, kamar masana'antu masana'antu, kimiyya bincike, optoelectronics, da dai sauransu, domin ci gaba da bidi'a na Laser aiki fasahar samar da karfi goyon baya da kuma tuki da karfi, ana sa ran inganta Laser sarrafa fasahar zuwa wani ci-gaba, mafi hadaddun shugabanci.