WO2001088925A1 - Procede de reecriture de donnees dans une memoire optique en trois dimensions fabriquee a partir de verre par impulsion lumineuse ultracourte - Google Patents
Procede de reecriture de donnees dans une memoire optique en trois dimensions fabriquee a partir de verre par impulsion lumineuse ultracourte Download PDFInfo
- Publication number
- WO2001088925A1 WO2001088925A1 PCT/JP2001/004143 JP0104143W WO0188925A1 WO 2001088925 A1 WO2001088925 A1 WO 2001088925A1 JP 0104143 W JP0104143 W JP 0104143W WO 0188925 A1 WO0188925 A1 WO 0188925A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- bit
- optical memory
- dimensional optical
- ultrashort
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/006—Overwriting
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/041—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using photochromic storage elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements
Definitions
- the present invention relates to a method for rewriting data of a three-dimensional optical memory element manufactured in glass using ultrashort light pulses.
- the present invention eliminates the above-mentioned problems of the prior art, makes it possible to move generated bits, and enables rewriting. Data of one element of a three-dimensional optical memory made in glass by ultrashort light pulses is made possible. The purpose is to provide a rewriting method for.
- the first ultrashort pulse laser beam was used to store a bit due to the photoinduced refractive index change inside the glass by the light intensity.
- the three-dimensionally generated bit is irradiated with a second ultra-short pulse laser beam of an energy lower than the first ultra-short pulse laser beam intensity, and the laser beam is irradiated with the bit.
- the bit is moved by condensing the light at a point shifted by a predetermined distance in the direction opposite to the propagation direction of the laser light from the bit to be moved. Rewriting is performed.
- the bit is manufactured by using an ultrashort laser beam of 1 ps or less.
- the method is characterized in that the refractive index is made different from that around the bit by the minute voids generated by the focused irradiation.
- the glass is silica glass or silicate glass. It is characterized by.
- the ultrashort pulse laser light is 800 nm.
- FIG. 1 is a schematic diagram showing the principle of the present invention.
- FIG. 2 is a configuration diagram of a rewriting system for one element of a three-dimensional optical memory manufactured using ultrashort light pulses in glass according to an embodiment of the present invention.
- FIG. 3 is an explanatory diagram of a method of moving an already created bit.
- FIG. 4 is a diagram showing a first movement process of a void (bit) according to the present invention.
- FIG. 5 is a diagram showing a second movement process of voids (bits) according to the present invention.
- FIG. 6 is a view showing a third movement process of the void (bit) of the present invention.
- FIG. 1 is a schematic diagram showing the principle of the present invention.
- 1 is an ultrashort light pulse
- 2 is a focusing lens
- 3 is glass
- 4 is a refractive index change region inside the glass. This refractive index change is caused by multiphoton absorption.
- the refractive index change ⁇ n has a spread around the focal point.
- the inside of the glass is modified by multiphoton absorption, and the glass is melted by the rewriting laser beam, and voids (gaps) in the vicinity move before new voids are created.
- FIG. 2 is a configuration diagram of a rewriting system for a three-dimensional optical memory element manufactured by using ultrashort light pulses in glass according to an embodiment of the present invention.
- 1 1 is an Ar + laser
- 12 is a mode ⁇ -check laser
- 13 is an Nd: YLF laser
- 14 is a regenerative amplifier
- 15 is an ND filter
- 16 is a mirror
- 17 is a focusing lens.
- 18 is glass
- 19 is an XYZ stage
- 20 is a halogen lamp
- 21 is a CCD camera
- 22 is a computer.
- a titanium sapphire laser is radiated from a condenser lens 17 onto a glass 18 set on an XYZ stage 19 to produce bits (spots, voids, and voids). Further, the stored bits can be rewritten as described later.
- the state of the bit can be imaged by the CCD camera 21 by irradiation from the halogen lamp 20.
- a titanium sapphire laser (wavelength 800 nm, power lmW, pulse width 130 fs, repetition frequency 1 kHz) was used as a light source, and an electromagnetic shirt Yuichi was used with an exposure time of 1Z125 s.
- Lens numerical aperture (NA) is 0.55, 8 shots shot, writing intensity is 0.95 J, moving intensity is 0.74 ⁇ J, and bits are created at a depth of 300 m from the surface .
- a laser beam is applied to the already manufactured bit 23 by shifting it by 0.1 ⁇ m.
- the glass was fused silica glass, and the movement was possible only when the laser beam was irradiated by shifting the focal point 24 in the direction opposite to the direction of travel of the laser beam as viewed from one side of the laser and irradiating the laser. Can't move bit 23 behind I
- FIG. 4 is a view showing the first movement process of the void (bit) according to the present invention. After the void is formed once (see FIG. 4 (a)), the light is focused in the direction opposite to the pulse propagation direction. Irradiation is performed by moving the point by 0.1 m (see FIGS. 4 (b) to 4 (c)). That is, the bit is rewritten under the conditions shown in FIG.
- FIG. 5 is a view showing a second movement process of voids (bits) according to the present invention. After a void is formed so that two voids are arranged side by side (see FIG. 5 (a)). The converging point is moved by 0.1 zm in the direction opposite to the propagation direction of the louds, and the two right-sided pods are moved to the left and joined to the other void [Fig. 5 (b)- See Fig. 5 (f)]. Note that bit rewriting is performed under the conditions shown in FIG. Also, the void after joining is larger than the original void.
- FIG. 6 is a view showing a third movement process of voids (bits) according to the present invention. After the voids are once formed (see FIG. 6 (a)), the voids are moved one by one to (See FIGS. 6 (b) to 6 (c)). Note that bit rewriting is performed under the conditions shown in FIG.
- a rewritable three-dimensional memory element can be manufactured. It can also be applied to the formation and correction of refractive index distribution in the field of fine glass processing.
- the capacity is 100 times larger than the current CD, and it can be expected as a next-generation storage medium. Further, it can be applied to the field of glass processing using a femtosecond laser, for example, in the production of waveguides, the correction of refractive index distribution inside glass and the field of fine glass processing.
- the method of rewriting data of a three-dimensional optical memory device manufactured in glass by ultrashort light pulses is used for manufacturing a rewritable three-dimensional memory device and forming and correcting a refractive index distribution in the field of fine glass processing. It is suitable. Further, the present invention can be applied to the field of glass processing using a femtosecond laser, for example, in the production of waveguides, the correction of refractive index distribution inside glass, and the field of fine glass processing.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/276,695 US6897433B2 (en) | 2000-05-18 | 2001-05-18 | Method for rewriting data in three-dimensional optical memory device fabricated in glass by ultra-short light pulse |
KR10-2002-7015568A KR100535195B1 (ko) | 2000-05-18 | 2001-05-18 | 글래스내에 제조된 3차원 광 메모리 소자의 데이터를초단광 펄스에 의해 재기록하는 방법 |
EP01932127A EP1306853B1 (en) | 2000-05-18 | 2001-05-18 | Method for rewriting data in three-dimensional optical memory device fabricated in glass by ultra-short light pulse |
DE60122744T DE60122744T2 (de) | 2000-05-18 | 2001-05-18 | Verfahren zum umschreiben von daten in einem in glas hergestellten dreidimensionalen optischen speicherbaustein durch einen ultrakurzen lichtimpuls |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-145922 | 2000-05-18 | ||
JP2000145922A JP3868713B2 (ja) | 2000-05-18 | 2000-05-18 | 超短光パルスによりガラス中に作製した三次元光メモリー素子のデータの書き換え方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001088925A1 true WO2001088925A1 (fr) | 2001-11-22 |
Family
ID=18652358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004143 WO2001088925A1 (fr) | 2000-05-18 | 2001-05-18 | Procede de reecriture de donnees dans une memoire optique en trois dimensions fabriquee a partir de verre par impulsion lumineuse ultracourte |
Country Status (6)
Country | Link |
---|---|
US (1) | US6897433B2 (ja) |
EP (1) | EP1306853B1 (ja) |
JP (1) | JP3868713B2 (ja) |
KR (1) | KR100535195B1 (ja) |
DE (1) | DE60122744T2 (ja) |
WO (1) | WO2001088925A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU194317U1 (ru) * | 2019-05-21 | 2019-12-05 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Устройство записи данных на носитель из стекла |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4716663B2 (ja) | 2004-03-19 | 2011-07-06 | 株式会社リコー | レーザ加工装置、レーザ加工方法、及び該加工装置又は加工方法により作製された構造体 |
US7696625B2 (en) | 2004-11-30 | 2010-04-13 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
US7985677B2 (en) | 2004-11-30 | 2011-07-26 | Semiconductor Energy Laboratory Co., Ltd. | Method of manufacturing semiconductor device |
US7732349B2 (en) | 2004-11-30 | 2010-06-08 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method of insulating film and semiconductor device |
US7517791B2 (en) | 2004-11-30 | 2009-04-14 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device |
US7687326B2 (en) | 2004-12-17 | 2010-03-30 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
US7579224B2 (en) * | 2005-01-21 | 2009-08-25 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing a thin film semiconductor device |
JP2006239718A (ja) * | 2005-03-01 | 2006-09-14 | Kyoto Univ | ナノ空孔周期配列体の作製方法及びその装置 |
JPWO2016194032A1 (ja) * | 2015-05-29 | 2017-08-17 | 株式会社日立製作所 | 光学デバイス |
US10248081B2 (en) | 2017-03-10 | 2019-04-02 | Microsoft Technology Licensing, Llc | Holographic phase and amplitude spatial light modulation |
US10809529B2 (en) | 2017-06-15 | 2020-10-20 | Microsoft Technology Licensing, Llc | Optical device having multiplexed electrodes |
US10181336B1 (en) | 2017-08-08 | 2019-01-15 | Microsoft Technology Licensing, Llc | Multi-beam optical system for fast writing of data on glass |
US10236027B1 (en) | 2018-02-12 | 2019-03-19 | Microsoft Technology Licensing, Llc | Data storage using light of spatially modulated phase and polarization |
RU2710389C1 (ru) * | 2019-05-21 | 2019-12-26 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Способ записи информации в нанопористом кварцоидном стекле |
RU2710387C1 (ru) * | 2019-05-21 | 2019-12-26 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Способ записи информации в кварцевом стекле |
RU191298U1 (ru) * | 2019-05-21 | 2019-08-01 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Устройство считывания данных с носителя из стекла |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49106251A (ja) * | 1973-01-13 | 1974-10-08 | ||
JPH10261225A (ja) * | 1997-03-18 | 1998-09-29 | Toshiba Corp | 光記録媒体、記録方法、再生方法、記録装置および再生装置 |
JPH11232706A (ja) * | 1998-02-19 | 1999-08-27 | Japan Science & Technology Corp | 三次元光メモリー媒体及びその製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1362148A (en) * | 1973-01-18 | 1974-07-30 | Fajans J | Memory storage device and method of making the same |
US4471470A (en) * | 1977-12-01 | 1984-09-11 | Formigraphic Engine Corporation | Method and media for accessing data in three dimensions |
US5264876A (en) * | 1989-08-10 | 1993-11-23 | Canon Kabushiki Kaisha | Recording medium, method for preparing the same, recording and reproducing device, and recording, reproducing and erasing method by use of such recording medium |
JP2961126B2 (ja) * | 1995-02-13 | 1999-10-12 | セントラル硝子株式会社 | 三次元光メモリーガラス素子からなる記録媒体及びその記録方法 |
KR19990071670A (ko) * | 1995-11-28 | 1999-09-27 | 에드워드 이. 데이비스 | 지속파 레이저를 이용하는 포토굴절 물질에서, 두-단계의게이트 홀로그래피 기록. |
-
2000
- 2000-05-18 JP JP2000145922A patent/JP3868713B2/ja not_active Expired - Fee Related
-
2001
- 2001-05-18 KR KR10-2002-7015568A patent/KR100535195B1/ko not_active IP Right Cessation
- 2001-05-18 EP EP01932127A patent/EP1306853B1/en not_active Expired - Lifetime
- 2001-05-18 DE DE60122744T patent/DE60122744T2/de not_active Expired - Fee Related
- 2001-05-18 WO PCT/JP2001/004143 patent/WO2001088925A1/ja active IP Right Grant
- 2001-05-18 US US10/276,695 patent/US6897433B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49106251A (ja) * | 1973-01-13 | 1974-10-08 | ||
JPH10261225A (ja) * | 1997-03-18 | 1998-09-29 | Toshiba Corp | 光記録媒体、記録方法、再生方法、記録装置および再生装置 |
JPH11232706A (ja) * | 1998-02-19 | 1999-08-27 | Japan Science & Technology Corp | 三次元光メモリー媒体及びその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1306853A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU194317U1 (ru) * | 2019-05-21 | 2019-12-05 | Российская Федерация, от имени которой выступает ФОНД ПЕРСПЕКТИВНЫХ ИССЛЕДОВАНИЙ | Устройство записи данных на носитель из стекла |
Also Published As
Publication number | Publication date |
---|---|
EP1306853A1 (en) | 2003-05-02 |
JP2001332092A (ja) | 2001-11-30 |
DE60122744D1 (de) | 2006-10-12 |
KR20030005362A (ko) | 2003-01-17 |
DE60122744T2 (de) | 2007-09-20 |
JP3868713B2 (ja) | 2007-01-17 |
US20030174552A1 (en) | 2003-09-18 |
EP1306853A4 (en) | 2005-07-20 |
KR100535195B1 (ko) | 2005-12-08 |
EP1306853B1 (en) | 2006-08-30 |
US6897433B2 (en) | 2005-05-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001088925A1 (fr) | Procede de reecriture de donnees dans une memoire optique en trois dimensions fabriquee a partir de verre par impulsion lumineuse ultracourte | |
US5761111A (en) | Method and apparatus providing 2-D/3-D optical information storage and retrieval in transparent materials | |
JPH09311237A (ja) | 光導波路及びその作製方法 | |
JP3155717B2 (ja) | マイクロレンズに対するレーザ加工方法 | |
US20100111120A1 (en) | Pulsed laser source with adjustable grating compressor | |
JP2961126B2 (ja) | 三次元光メモリーガラス素子からなる記録媒体及びその記録方法 | |
JPH039536B2 (ja) | ||
JP2009056467A (ja) | レーザ加工装置およびレーザ加工方法 | |
US20060044639A1 (en) | 3-d holographic recording method and 3-d holographic recording system | |
JP2005084617A (ja) | 多光子吸収露光方法および装置 | |
JP2001236644A (ja) | 固体材料の屈折率を変化させる方法 | |
JP3468450B2 (ja) | 固体材料内部の選択的改質方法及び内部が選択的に改質された固体材料 | |
JP2007108261A (ja) | 偏波保持光導波路およびその製造方法 | |
JPH10123357A (ja) | 光導波路に対するレーザ加工方法 | |
US20220268983A1 (en) | Method of forming birefringent structures in an optical element | |
JPH057690B2 (ja) | ||
JP3967090B2 (ja) | 透明固体内部のボイドの移動方法 | |
JP4417675B2 (ja) | 多光子吸収媒体およびそれを用いた露光方法 | |
Wei et al. | F2-laser microfabrication of buried waveguide structures in transparent glasses | |
JP7067736B2 (ja) | パルスレーザーを用いた微細周期構造の加工方法、及びガラス体 | |
RU2710387C1 (ru) | Способ записи информации в кварцевом стекле | |
Chkalov et al. | Multilayer Volumetric Modification of Fused Silica by Femtosecond Laser Radiation | |
JP3887688B2 (ja) | 超解像近接場露光法 | |
JP2004347642A (ja) | 再書き込み可能な光学素子材料 | |
Sohn et al. | Femtosecond micromachining applications for optical devices |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020027015568 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001932127 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027015568 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10276695 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2001932127 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1020027015568 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 2001932127 Country of ref document: EP |