JPS59151A - Hologram recording material - Google Patents
Hologram recording materialInfo
- Publication number
- JPS59151A JPS59151A JP10834082A JP10834082A JPS59151A JP S59151 A JPS59151 A JP S59151A JP 10834082 A JP10834082 A JP 10834082A JP 10834082 A JP10834082 A JP 10834082A JP S59151 A JPS59151 A JP S59151A
- Authority
- JP
- Japan
- Prior art keywords
- bismuth
- recording material
- hologram recording
- iron
- bgo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
- G03C1/725—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing inorganic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Holo Graphy (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は高感度で書き替え可能なホログラム記録材料に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a highly sensitive and rewritable hologram recording material.
ArレーザやHe −Neレーザを用いたホログラムの
記録再生は、高密度の画像処理や画像メモリーとして有
用であり、主として写真乾板を用いて行われでいる。し
かし写真乾板Get現象、定着の工程が必要であり、リ
アルタイムの画像処理には適していない。また再使用で
きないことも欠点である。Recording and reproduction of holograms using an Ar laser or a He-Ne laser is useful for high-density image processing and image memory, and is mainly performed using a photographic plate. However, it requires a photographic plate get phenomenon and a fixing process, and is not suitable for real-time image processing. Another disadvantage is that it cannot be reused.
リアルタイムで再使用可能な材料として、サーモプラス
チックを用いた記録材料が使用されているが、熱的変杉
を利用するため、寿命が短く、湿気に弱い等の欠点があ
る。Recording materials using thermoplastics are used as materials that can be reused in real time, but because they use thermally modified cedar, they have short lifespans and are susceptible to moisture.
これに対して最近の研究によって誘電体拐料たとえばL
I NbO,+ s B Nなどの祠料は不純物を添
加することにより、リアルタイムで使用Ml能なホログ
ラム記録材中1となることが知られている。On the other hand, recent research has shown that dielectric materials such as L
It is known that by adding impurities, abrasive materials such as I NbO and +s B N can become one of the most usable hologram recording materials in real time.
本発明のビスマス、シリコン、オキサイド(”+28
+07a +以下B80と略す)、ビスマス、ゲルマニ
ウム、Aキサイド(Ei、Gem、。v以下RG Oと
略す)は伺ら元素を添加しなくとも顕著な光伝導効果を
示すものであり、1380を例にとれば第1図(a)に
示すようにn5o1に参照光2と物体6の物体光4が照
射されると干#縞5が書き込まれ、その濃淡に応じて自
由電子が発生する。特にBSO,BGOは紫〜青y成す
るため第1図(b)に示すように再生光6を照射ずれば
、iir+常のホログラムと同様に再生像7を得る。r
lfl先生光T3SO,、IIGOの光伝導効果を生じ
さt!ない赤〜赤外光が良い。消去するためには電源1
0の@I+O,を(7に1.てB80全面ニ参ti(1
九σJみを照射すればよい。なお、8は透間光、9は同
折晃である。Bismuth, silicon, oxide of the present invention ("+28
+07a +hereinafter abbreviated as B80), bismuth, germanium, and oxide (Ei, Gem, .vhereinafter abbreviated as RGO) exhibit remarkable photoconductive effects even without the addition of elements, and 1380 is an example. In other words, as shown in FIG. 1(a), when the reference beam 2 and the object beam 4 of the object 6 are irradiated onto n5o1, a stripe 5 is written, and free electrons are generated depending on the density thereof. In particular, since BSO and BGO have a violet to blue color, if the reproduction light 6 is irradiated and shifted as shown in FIG. r
lfl Professor optical T3SO,, caused the photoconductive effect of IIGO! No red~infrared light is better. Power supply 1 to erase
0 @I+O,
It is sufficient to irradiate 9σJ. Note that 8 is Toruma Hikari and 9 is Doori Akira.
以上のプロ七又は全く電子的なものであり、記録再生消
去をリアルタイムで繰り返し行うことがでトる。The above-mentioned Pro 7 is entirely electronic, and recording, reproducing and erasing can be repeatedly performed in real time.
11゛
このように本来高感度なり80.BGOの感度をさ1、
″、瞥←高めることは、リアルタイム処理の速度を向上
させる上で重要な技術である。11゛In this way, the sensitivity is originally high 80. Set the BGO sensitivity to 1,
″, Increasing the visibility is an important technique to improve the speed of real-time processing.
発明者らは、+180.IIGOのホログラムトシての
動作機構について種々の検討を加えた結果、記録光によ
って発生した自由電子がある特別なトラップ準位におい
て有効にトラップされる確率が高いとになす、システム
の効率やコストパーホ二マンスが4tS向上するという
実用上の有用性を果すものである。Inventors +180. As a result of various studies on the operation mechanism of the IIGO hologram, we found that there is a high probability that free electrons generated by the recording light will be effectively trapped in a particular trap level, and that the efficiency and cost performance of the system is high. This has practical utility in that the time is improved by 4tS.
ml率が低下し゛C再生像が極端に暗くなるからである
。This is because the ml ratio decreases and the reproduced image becomes extremely dark.
第1図はB 80ホログラム記憶デバイスの動作片J7
ij 4Q明図で(a)図はホVグラムの記?’&t
alt、閉園、(b)図しtホログラムの再生説明図、
第2図はB S O無添加とB80− Fe (10p
pm)ホログラム#己jlデバイスノ%%九時1111
と回折効率σJf9J係比較図表である。
1・・・B S O12・・・参照光、6・・・物体、
4・・・物体光、5・・・干渉縞、6・・・再生光、7
・・・再生像、8・・・透過光、9・・・同折光、10
・・・電源。Figure 1 shows the operating piece J7 of the B80 hologram storage device.
ij In the 4Q light diagram, (a) is the record of the H-V gram? '&t
alt, closed, (b) illustration of hologram playback,
Figure 2 shows BSO-free and B80-Fe (10p
pm) Hologram #selfjldeviceno%%9:1111
and diffraction efficiency σJf9J. 1... B S O12... Reference light, 6... Object,
4...Object light, 5...Interference fringes, 6...Reproduction light, 7
... Reproduced image, 8... Transmitted light, 9... Same refraction light, 10
···power supply.
Claims (1)
20)もしくはビスマス、ゲルマニウム、オキサイド(
Bi12GeO20)に鉄元素を10ppm添加したこ
とを特徴とするホログラム記録材料。1. Bismuth, silicon, oxide (Bi12SIO
20) or bismuth, germanium, oxide (
A hologram recording material characterized in that 10 ppm of iron element is added to Bi12GeO20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10834082A JPS59151A (en) | 1982-06-25 | 1982-06-25 | Hologram recording material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10834082A JPS59151A (en) | 1982-06-25 | 1982-06-25 | Hologram recording material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59151A true JPS59151A (en) | 1984-01-05 |
JPH0139571B2 JPH0139571B2 (en) | 1989-08-22 |
Family
ID=14482203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10834082A Granted JPS59151A (en) | 1982-06-25 | 1982-06-25 | Hologram recording material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59151A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5055310A (en) * | 1988-09-02 | 1991-10-08 | Ajinomoto Co., Inc. | Process of preparing shelf-stable "tofu" at normal temperature for long term |
JP2007236573A (en) * | 2006-03-08 | 2007-09-20 | Yamato Protec Co | Safety plug for fire extinguisher |
-
1982
- 1982-06-25 JP JP10834082A patent/JPS59151A/en active Granted
Non-Patent Citations (1)
Title |
---|
APPLIED PHYSICS LETTERS * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5055310A (en) * | 1988-09-02 | 1991-10-08 | Ajinomoto Co., Inc. | Process of preparing shelf-stable "tofu" at normal temperature for long term |
JP2007236573A (en) * | 2006-03-08 | 2007-09-20 | Yamato Protec Co | Safety plug for fire extinguisher |
Also Published As
Publication number | Publication date |
---|---|
JPH0139571B2 (en) | 1989-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4965784A (en) | Method and apparatus for bistable optical information storage for erasable optical disks | |
US3696344A (en) | Optical mass memory employing amorphous thin films | |
JPS63501751A (en) | Combined holographic memory device using phase conjugate mirror | |
US6670079B1 (en) | Photorefractive material | |
JPS59151A (en) | Hologram recording material | |
JPH11237829A (en) | Method and device for optical recording and optical reading | |
Alphonse et al. | Iron-doped lithium niobate as a read-write holographic storage medium | |
GB1360670A (en) | Sonic page composer for holographic memory | |
Rupp et al. | Diffraction by difference holograms in electrooptic crystals | |
JP3666553B2 (en) | Optical regeneration method and optical regeneration apparatus | |
EP0330507A3 (en) | Magneto-optic recording and regenerating process, device using same and magneto-optic disk | |
Alphonse et al. | Read-write holographic memory with iron-doped lithium niobate | |
CA2025724A1 (en) | Information processor and disk memory used in the same | |
JPS6417234A (en) | Optical information recording method and information recording medium | |
JPS5250702A (en) | Optical information recording and reproduction apparatus | |
JPH06105508B2 (en) | Magneto-optical record erasing method | |
Von der Linde et al. | Multiphoton processes for optical storage in pyroelectrics | |
SU570008A1 (en) | Plate for reversible optical recording | |
SU655233A1 (en) | Method of recording and reading of optical information in activated alkaline halide crystals | |
Orlov et al. | Long-lifetime hologram fixing and ionic conductivity in photorefractive lithium niobate | |
SU815756A1 (en) | Magnetic tape for optic reproducing of information | |
Amodei et al. | Holographic Pattern Fixing in Electro-Optic Crystals | |
Morikawa et al. | Hard optical storage through electrical sensitivity switching | |
Borrelli et al. | Read-Write-Erasable Thin Film Optical Recording Medium | |
JPS61280055A (en) | Photomagnetic disk device |