JP4904200B2 - Optical parallel computing element - Google Patents
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- JP4904200B2 JP4904200B2 JP2007134791A JP2007134791A JP4904200B2 JP 4904200 B2 JP4904200 B2 JP 4904200B2 JP 2007134791 A JP2007134791 A JP 2007134791A JP 2007134791 A JP2007134791 A JP 2007134791A JP 4904200 B2 JP4904200 B2 JP 4904200B2
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Description
本発明は、光並列演算時に互いの光情報を組み入れることで、より高性能な並列演算をより高速に行うための光並列演算素子に関する。 The present invention relates to an optical parallel computing element for performing higher-performance parallel computation at higher speed by incorporating optical information of each other during optical parallel computation.
近年の情報処理装置の高速化・高性能化の要求に伴い、演算処理の並列化が要求されている。このため、デジタル演算処理回路が複数組み込まれた並列演算素子が提供されているが、アナログ情報に関しては個々の信号を毎回デジタル信号に変換した後に並列デジタル演算を行わなければならない。そのために、演算処理の高速化には複数のアナログ信号をアナログのまま一度に並列に演算できる演算素子が必要となってくる。 With the recent demand for higher speed and higher performance of information processing apparatuses, parallel processing is required. For this reason, a parallel arithmetic element in which a plurality of digital arithmetic processing circuits are incorporated is provided. However, for analog information, parallel digital arithmetic must be performed after each signal is converted into a digital signal. For this reason, an arithmetic element capable of calculating a plurality of analog signals in parallel at the same time in analog form is required for speeding up the arithmetic processing.
従来のアナログ演算素子において、単一の回路のものはオペアンプのような従来の半導体素子を用い、複数の回路では、まずアナログ信号をデジタル信号に変換して、その後、複数のデジタル信号を演算処理していた。そのため、複数のアナログ信号のアナログ演算を並列に行うには、入力回路数と同数のアナログ−デジタル変換回路が必要となってしまう。しかも、回路数が多くなればなるほど複数のアナログ−デジタル変換回路同士の同期を取ることが難しくなるといった問題も生じてしまう。 A conventional analog arithmetic element uses a conventional semiconductor element such as an operational amplifier for a single circuit. In a plurality of circuits, an analog signal is first converted into a digital signal, and then a plurality of digital signals are processed. Was. Therefore, in order to perform analog operations of a plurality of analog signals in parallel, the same number of analog-digital conversion circuits as the number of input circuits are required. In addition, as the number of circuits increases, there arises a problem that it becomes difficult to synchronize a plurality of analog-digital conversion circuits.
一方、光を用いて演算を行う素子が提案されている。図５に従来の光演算素子の構成を模式的に断面図で示す。この光演算素子は、二次元配列した複数の光学セル５１を備え、それぞれの光学セル５１は隔壁５２と底部５３よりなる区画に光の情報を受けたときに応答する光応答性物質５４を収容している。各光学セル５１には演算光照射装置５５により所定波長の光５６が照射し、光５６が照射された光学セル５１内の光応答性物質５４は光応答性を示し、その状態を検出することにより、演算が行われるようになっている。 On the other hand, an element that performs calculation using light has been proposed. FIG. 5 schematically shows a cross-sectional view of a configuration of a conventional optical arithmetic element. This optical computing element includes a plurality of two-dimensionally arranged optical cells 51, and each optical cell 51 contains a light-responsive substance 54 that responds when receiving light information in a partition composed of a partition 52 and a bottom 53. is doing. Each optical cell 51 is irradiated with light 56 having a predetermined wavelength by the arithmetic light irradiation device 55, and the photoresponsive substance 54 in the optical cell 51 irradiated with the light 56 exhibits photoresponsiveness and detects its state. Thus, the calculation is performed.
しかしながら、このような従来の光演算素子は、演算の並列化を行う場合、それぞれ独立した光学セル５１によって行われており、並列演算中は隣接した光学セル５１同士の間での情報の遣り取りは行われていない。もし、隣り合った光学セル５１同士の演算が必要な場合には、並列演算を一旦止めて、光学セル５１同士の演算を行い、その後、並列演算を再開するといった作業を行っていた。 However, such conventional optical arithmetic elements are performed by independent optical cells 51 when performing parallel processing, and information is exchanged between adjacent optical cells 51 during parallel arithmetic. Not done. If computation between adjacent optical cells 51 is necessary, the parallel computation is temporarily stopped, computation between the optical cells 51 is performed, and then the parallel computation is resumed.
従って、光学セル５１間の情報の遣り取りが多くなればなるほど、複数の光学セル５１による並列演算の演算速度が低下してしまうといった問題を生じていた。並列演算には、並列演算を行う前処理にデータの並び替え等の処理が必要なため、場合によっては単独の光学セル５１による演算の方が早くなるといった問題も生じてしまう。
本発明は、このような従来技術の問題点を解決するためのなされたもので、より高性能な並列演算をより高速に行うことができる光並列演算素子を提供することを課題とする。 The present invention has been made to solve such problems of the prior art, and an object of the present invention is to provide an optical parallel arithmetic element capable of performing higher-performance parallel arithmetic at higher speed.
本発明は、上記課題を解決するため、第１には、互いに隣接して設けられる複数の光学セルを有し、各光学セルは、上部に光の入射部を有するとともに、隔壁と底部で区画化された空間に、光の情報を受けたときに応答する光応答性物質を収容し、隔壁は規定波長以上の光は透過し規定波長未満の光は遮断する光学窓を有し、底部には上方から入射した光を反射して光学窓を介して隣接した光学セルに導くためのミラーが設けられ、前記光応答性物質は、規定波長未満の第１の特定波長の光のみを照射したときには、規定波長以上の第２の特定波長の光を発光しながら失活し、第１の特定波長の光と第２の特定波長の光を同時に照射したときには、誘導放出により第２の特定波長の強い光を発光するものであり、各光学セルへの光照射を制御し、隣接する光学セルとの光の遣り取りを行うことにより、両光学セル間のアナログ演算を行うことを特徴とする光並列演算素子を提供する。 In order to solve the above problems, the present invention first has a plurality of optical cells provided adjacent to each other, and each optical cell has a light incident portion at the top and is partitioned by a partition wall and a bottom portion. The light-sensitive material that responds when receiving light information is accommodated in the structured space, the partition wall has an optical window that transmits light of a wavelength longer than a specified wavelength and blocks light of a wavelength shorter than a specified wavelength. Is provided with a mirror for reflecting light incident from above and guiding it to an adjacent optical cell through an optical window, and the photoresponsive substance irradiates only light having a first specific wavelength less than a specified wavelength. In some cases, when the light is deactivated while emitting light of the second specific wavelength that is equal to or greater than the specified wavelength, and the light of the first specific wavelength and the light of the second specific wavelength are simultaneously irradiated, the second specific wavelength is caused by stimulated emission. It emits strong light and controls the light irradiation to each optical cell. By exchanging the light between adjacent optical cell, to provide an optical parallel operation elements and performing analog operation between the two optical cell.
第２には、上記第１の発明において、光応答性物質がレーザー色素であることを特徴とする光並列演算素子を提供する。 Secondly, in the first invention, there is provided an optical parallel computing element characterized in that the photoresponsive substance is a laser dye.
第３には、上記第１又は第２の発明において、各光学セルの形状が平面視正方形状であり、底部の形状が四角錐状であることを特徴とする光並列演算素子を提供する。 Thirdly, in the first or second invention, there is provided an optical parallel arithmetic element characterized in that each optical cell has a square shape in plan view and a bottom portion has a quadrangular pyramid shape.
第４には、上記第１又は第２の発明において、各光学セルの形状が平面視正三角形状であり、底部の形状が三角錐状であることを特徴とする光並列演算素子を提供する。 Fourth, in the first or second invention, there is provided an optical parallel arithmetic element characterized in that the shape of each optical cell is a regular triangular shape in plan view and the shape of the bottom is a triangular pyramid shape. .
第５には、上記第１又は第２の発明において、各光学セルの形状が平面視正六角形状であり、底部の形状が六角錐状であることを特徴とする光並列演算素子を提供する。 Fifth, in the first or second invention, there is provided an optical parallel arithmetic element characterized in that the shape of each optical cell is a regular hexagonal shape in plan view and the shape of the bottom is a hexagonal pyramid shape. .
本発明によれば、光学セル内にミラーと光透過性の隔壁を備えたことで、隣接光学セルからの情報を足し合わせることが可能になったため、より高性能な並列演算をより高速に行う演算素子を実現でき、係るアナログ演算装置の性能向上に寄与するところが大きい。また、本発明によれば、ある特定の光学セルのみに隣接する光学セルからの情報を考慮した演算ができるため、不要な光の入射による誤差が排除され、明確な差が要求される演算への対応が可能になる。 According to the present invention, since the mirror and the light-transmitting partition are provided in the optical cell, it becomes possible to add information from adjacent optical cells, so that higher-performance parallel computation is performed at higher speed. An arithmetic element can be realized, which greatly contributes to the performance improvement of the analog arithmetic device. In addition, according to the present invention, since calculation can be performed in consideration of information from an optical cell adjacent to only a specific optical cell, an error due to unnecessary incident light is eliminated, and a calculation that requires a clear difference is required. Is possible.
以下、本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
図１は、本発明の光並列演算素子における光学セルの構成を模式的に示す断面図、図２は、本発明の光並列演算素子の原理説明図である。 FIG. 1 is a cross-sectional view schematically showing the configuration of an optical cell in the optical parallel arithmetic element of the present invention, and FIG. 2 is a diagram for explaining the principle of the optical parallel arithmetic element of the present invention.
光学セル１１は、隔壁１２と底部１３で区画化された空間を有し、その空間に光の情報を受けたときに応答する光応答性物質１４が収容されている。隔壁１２には規定波長以上の光は透過し規定波長未満の光は遮断する光学窓１５が設けられている。なお、隔壁１２自体を上記波長条件を満足する材料で形成してもよい。また、底部１３は図示のように断面が三角形状となっており、その２辺に相当する部分に図示のようにミラー１６が形成されている。このミラー１６は隣接する光学セル１１に自身の光の情報を伝えるために設けられる。光学セル１１の上側は開口するように記載されているが、装置化にあたっては光応答性物質１４を密閉した構造とする。この密閉化は、光透過性材料でふたをする方法で行ってもよく、カプセル化してもよい。光学セル１１内の光応答性物質１４は上側から光の照射が行えるようになっている。なお、ここで上側とは、図面に示してある方向を指し、実際の使用にあたっては任意の方向を向いていてよい。光学セル１１の材料としては、例えば石英、アルミナ、窒化シリコン、酸化シリコン等を用いることができる。また、光学窓１５の材料としては、ローパスフィルターを構成する材料等を用いることができる。光学窓１５は、例えば、規定波長以上の光は透過し規定波長未満の光は遮断するローパスフィルターと同じ材質の材料で作られた壁を接着する手法を用いて設けることができる。ミラー１６の材料としては、例えば金、アルミニウム等を用いることができる。各光学セル１１の形成は、例えばマイクロマシーン技術を用いて行うことができる。 The optical cell 11 has a space partitioned by a partition wall 12 and a bottom portion 13, and a photoresponsive substance 14 that responds when receiving light information is accommodated in the space. The partition wall 12 is provided with an optical window 15 that transmits light having a wavelength longer than a specified wavelength and blocks light having a wavelength shorter than the specified wavelength. The partition 12 itself may be formed of a material that satisfies the above wavelength condition. Further, the bottom 13 has a triangular cross section as shown in the figure, and a mirror 16 is formed as shown in the part corresponding to the two sides. This mirror 16 is provided to transmit information of its own light to the adjacent optical cell 11. Although the upper side of the optical cell 11 is described as opening, it is assumed that the photoresponsive substance 14 is sealed in the apparatus. This sealing may be performed by a method of covering with a light transmissive material, or may be encapsulated. The photoresponsive substance 14 in the optical cell 11 can be irradiated with light from above. Here, the upper side refers to the direction shown in the drawings, and may be in any direction in actual use. As a material of the optical cell 11, for example, quartz, alumina, silicon nitride, silicon oxide, or the like can be used. Moreover, as a material of the optical window 15, a material constituting a low-pass filter or the like can be used. The optical window 15 can be provided, for example, by using a technique of adhering a wall made of the same material as the low-pass filter that transmits light having a wavelength longer than a specified wavelength and blocks light having a wavelength shorter than the specified wavelength. As a material of the mirror 16, for example, gold, aluminum or the like can be used. Each optical cell 11 can be formed using, for example, a micromachine technique.
ここで、光学窓１５が透過させうる規定波長をＷＳとする。光応答性物質１４としては、第１の特定波長ＷＡ（＜ＷＳ）の光のみを照射したときには基底状態から励起状態に励起した後第２の特定波長の光ＷＢ（≧ＷＳ）を発光しながら基底状態に失活し、第１の特定波長ＷＡの光と第２の特定波長ＷＢの光を同時に照射したときには、誘導放出により第２の特定波長ＷＢの強い光を発光するものを用いる。このような光応答性物質１４としては、上記のような性質のものであれば各種の材料を用いることができるが、特にBenzoic Acid, 2-[6-(ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthen-9-yl]-ethyl ester, monohydrochloride (以下、Rhodamine6Gと略す。)、o-(6-Amino-3-imino-3 H-xanthen-9-yl)-benzoic acid (通称 Rhodamine 110)等のレーザー色素が好ましく使用できる。これらの色素はエタノール、メタノール等のアルコールやジメチルスルホキシド等の溶媒に溶解させて使用する。この光応答性物質１４は光の照射により分子の電子状態が変化して、光応答性を示すもので、ここでは強度の異なる光の発光を利用する。 Here, the prescribed wavelength optical window 15 is capable of transmitting and W S. As the photoresponsive substance 14, when only light having a first specific wavelength W A (<W S ) is irradiated, light W B (≧ W S ) having a second specific wavelength is excited after being excited from the ground state to the excited state. deactivated to the ground state while emitting, upon irradiation with light of a first specific wavelength W a light of a second specific wavelength W B at the same time, light with high second specific wavelength W B by stimulated emission Use one that emits light. Various materials can be used as the photoresponsive substance 14 as long as they have the properties described above, and in particular, Benzoic Acid, 2- [6- (ethylamino) -3- (ethylimino)- 2,7-dimethyl-3H-xanthen-9-yl] -ethyl ester, monohydrochloride (hereinafter abbreviated as Rhodamine6G), o- (6-Amino-3-imino-3 H-xanthen-9-yl) -benzoic Laser dyes such as acid (commonly known as Rhodamine 110) can be preferably used. These dyes are used after being dissolved in an alcohol such as ethanol or methanol, or a solvent such as dimethyl sulfoxide. The photoresponsive substance 14 exhibits photoresponsiveness by changing the electronic state of molecules upon irradiation with light. Here, light emission having different intensities is used.
演算動作について述べると、まず図２（ａ）の上図に示すように、光学セルＡ（１１）の光応答性物質１４に波長ＷＡ（＜ＷＳ）の光のみを照射する。ここで、波長ＷＡの強度は、光応答性物質１４により波長ＷＢの光を発光するものの誘導放出を起こさない大きさに設定する。このとき、光学セルＡ（１１）の変化は非常に小さく、一定時間後には図２（ａ）の下図のような状態となる。光学セルＡ（１１）においてミラー１６で反射した波長ＷＢの光は光学窓１５で遮断され、隣接した光学セルＢ（１１）には照射されない。 The calculation operation will be described. First, as shown in the upper diagram of FIG. 2A, only the light of wavelength W A (<W S ) is irradiated onto the photoresponsive substance 14 of the optical cell A (11). Here, the intensity of the wavelength W A is set to a size that does not cause a stimulated emission of which emits light of wavelength W B by photoresponsive material 14. At this time, the change of the optical cell A (11) is very small, and after a certain period of time, the state becomes as shown in the lower diagram of FIG. Light having a wavelength W B reflected by the mirror 16 in the optical cell A (11) is blocked by the optical window 15, not irradiated to adjacent optical cell B (11).
一方、波長ＷＡの光を光学セルＡ（１１）の光応答性物質１４に照射した状態で、光学セルＡ（１１）に隣接する光学セルＢ（１１）の光応答性物質１４に波長ＷＢ（≧ＷＳ）の光を照射すると、この光は光学セルＢ（１１）のミラー１６に反射して光学セルＡ（１１）内の光応答性物質１４に照射される。すると、波長ＷＡと波長ＷＢの光が同時に照射されたことにより、光学セルＡ（１１）内の光応答性物質１４の状態は大きく変化する。すなわち、光学セルＡ（１１）内の光応答性物質１４は波長ＷＢの光が隣接した光学セルＢ（１１）から光学窓１５を通して照射されるため、光学セルＡ（１１）内で励起した光応答性物質１４に対して誘導放出が起こり、波長ＷＢの強い光が発光されることになる。一方、光学セルＢ（１１）では光学セルＡ（１１）からの波長ＷＡの光は遮断されるため、光応答性分子はほとんど変化しない。そして前記現象の結果生じた強い光を隣接する光学セルＢ（１１）と光学セルＡ（１１）との演算結果とする。従って、隣接する光学セルに情報が同時に入力された場合に起る光応答性物質１４の変化を利用することで、複数の入力情報による演算が可能になる。また、光の強度に応じた演算結果となるため、アナログ演算を実現できる。 On the other hand, the wavelength W of the light A in a state of irradiating the photoresponsive material 14 of the optical cell A (11), a wavelength W in photoresponsive material 14 of the optical cell B (11) adjacent to the optical cell A (11) When the light of B (≧ W S ) is irradiated, this light is reflected by the mirror 16 of the optical cell B (11) and irradiated to the photoresponsive substance 14 in the optical cell A (11). Then, by the light of the wavelength W A and the wavelength W B are illuminated simultaneously, the state of the light-responsive material 14 in the optical cell A (11) varies greatly. That is, light-responsive substance 14 in the optical cell A (11) Since the light of the wavelength W B is irradiated through the optical window 15 from an adjacent optical cell B (11), excited at the optical cell A (11) stimulated emission occurs against photoresponsive material 14, so that strong light wavelength W B emitted. Meanwhile, since the light of the wavelength W A from the optical cell B (11) in the optical cell A (11) is blocked, photoresponsive molecules hardly changes. The intense light generated as a result of the above phenomenon is used as the calculation result of the adjacent optical cell B (11) and optical cell A (11). Therefore, by using the change of the photoresponsive substance 14 that occurs when information is simultaneously input to adjacent optical cells, it is possible to perform calculations using a plurality of input information. In addition, since the calculation result is in accordance with the light intensity, analog calculation can be realized.
以上、本発明の光並列演算素子の原理を２つの光学セルを用いた場合を例に説明してきたが、もちろん、本発明では、多数の光学セルを二次元配列した素子構成とすることができる。 As described above, the principle of the optical parallel arithmetic element of the present invention has been described by taking the case of using two optical cells as an example. Of course, in the present invention, an element configuration in which a large number of optical cells are two-dimensionally arranged can be used. .
次に、本発明を実施例によりさらに詳細に説明する。 Next, the present invention will be described in more detail with reference to examples.
図３は本発明の実施例に係る光並列演算素子の構成を模式的に示す断面図である。図３の光並列演算素子は４つの光学セル３１を有しているが、これは例示のためであり、実際には所要数の光学セルを二次元配列させたものとすることができる。 FIG. 3 is a cross-sectional view schematically showing the configuration of the optical parallel arithmetic element according to the embodiment of the present invention. The optical parallel arithmetic element of FIG. 3 has four optical cells 31, but this is for illustrative purposes, and in practice, a required number of optical cells can be two-dimensionally arranged.
光学セル３１は石英を半導体微細加工して図３のように隔壁３２と底部３３で区画化された空間を形成した。隔壁３２には波長５００ｎｍ以上の光は透過し波長５００ｎｍ未満の光は遮断するハイパスフィルターよりなる光学窓３５を設けた。断面が三角形の底部３３には金を蒸着してミラー３６を設けた。このミラー３６は、上方から入ってきた光を、隔壁３２の光学窓３４を通して隣接する光学セル３１に向かって反射するように形成した。光学セル３１内には光応答性物質３４として、Rhodamine6Gのメタノール溶液を入れた。 The optical cell 31 was formed by subjecting quartz to semiconductor fine processing to form a space partitioned by a partition wall 32 and a bottom 33 as shown in FIG. The partition wall 32 is provided with an optical window 35 made of a high-pass filter that transmits light having a wavelength of 500 nm or more and blocks light having a wavelength of less than 500 nm. A mirror 36 was provided by depositing gold on the bottom 33 having a triangular cross section. The mirror 36 was formed so as to reflect the light that entered from above through the optical window 34 of the partition wall 32 toward the adjacent optical cell 31. In the optical cell 31, a methanol solution of Rhodamine 6G was placed as a photoresponsive substance 34.
次に、図４の実施例の原理説明図を用いて、この光並列演算素子の動作について説明する。図４（ａ）に示すように、光学セルＡ（３１）の光応答物質（Rhodamine6G）１４に波長３０８ｎｍの光のみを照射すると、励起状態に励起し、その後、５５６ｎｍの光を発光しながら失活した。この時、波長３０８ｎｍの光は光学セルＡ（３１）内で反射されても光学窓３５で遮断されるため、この現象は光学セルＡのみで起きる。一方、図４（ｂ）に示すように、光学セルＡ（３１）に対して波長３０８ｎｍの光を照射すると同時に、隣接する光学セル３１から波長５５６ｎｍの光を入射させると、この隣接光学セル３１に照射された波長５５６ｎｍの光が隣接光学セル３１内のミラー３６によって光学セルＡ（３１）に向かって反射される。この反射光は光学窓３５を通過し、光学セルＡ（３１）に導かれる。この時、光学セルＡ（３１）内で励起したRhodamine6Gに対して誘導放出が起こり、Rhodamine6Gが波長５５６ｎｍの強い光を発光した。この一連の現象の結果に生じた強い光を隣接する光学セル３１と光学セルＡ（３１）との演算結果とする。この演算結果は光学セル３１から出力された強い光を受光することにより得ることができる。 Next, the operation of this optical parallel arithmetic element will be described with reference to the principle explanatory diagram of the embodiment of FIG. As shown in FIG. 4 (a), when the photoresponsive substance (Rhodamine 6G) 14 of the optical cell A (31) is irradiated with only light having a wavelength of 308 nm, it is excited to an excited state, and then lost while emitting 556 nm light. Lived. At this time, even if light having a wavelength of 308 nm is reflected in the optical cell A (31), it is blocked by the optical window 35, so this phenomenon occurs only in the optical cell A. On the other hand, as shown in FIG. 4B, when light having a wavelength of 308 nm is irradiated onto the optical cell A (31) and light having a wavelength of 556 nm is incident from the adjacent optical cell 31, the adjacent optical cell 31 is irradiated. Is reflected by the mirror 36 in the adjacent optical cell 31 toward the optical cell A (31). The reflected light passes through the optical window 35 and is guided to the optical cell A (31). At this time, stimulated emission occurred with respect to Rhodamine 6G excited in the optical cell A (31), and Rhodamine 6G emitted strong light having a wavelength of 556 nm. The intense light generated as a result of this series of phenomena is used as the calculation result of the adjacent optical cell 31 and optical cell A (31). This calculation result can be obtained by receiving strong light output from the optical cell 31.
以上、本発明を実施形態及び実施例に基づいて説明してきたが、本発明は上記実施形態及び実施例に限定されるものではなく、種々の変形、変更が可能である。 As mentioned above, although this invention has been demonstrated based on embodiment and an Example, this invention is not limited to the said embodiment and Example, A various deformation | transformation and change are possible.
例えば、上記では、各光学セルの形状が平面視正方形状であり、底部の形状が四角錐状である場合を例に述べたが、各光学セルは、その形状が平面視正三角形状であり、底部の形状が三角錐状であるものとして、これらを細密に配置してもよく、また、その形状を平面視正六角形状とし、底部の形状が六角錐状として、これらを蜂の巣状に配置してもよい。これらは、各光学セルの形成にマイクロマシーン技術を使用した場合、リソグラフィーのマスクのパターンを変えるだけで作製することができる。 For example, in the above description, the case where each optical cell has a square shape in plan view and the bottom portion has a quadrangular pyramid shape has been described as an example. However, each optical cell has a regular triangular shape in plan view. These may be arranged finely, assuming that the shape of the bottom is a triangular pyramid, and the shape is a regular hexagon in plan view, the shape of the bottom is a hexagonal pyramid, and these are arranged in a honeycomb shape May be. These can be produced by simply changing the pattern of the lithography mask when micromachine technology is used to form each optical cell.
また、本発明では、各光学セルの底部の形状は上部が平らとなっていてもよい。 In the present invention, the bottom of each optical cell may be flat at the top.
本発明の光並列演算素子は、隣接する光学セルとの光の情報の遣り取りを行うことができるので、例えば、２つの集合の和に条件を満たす要素を探索するような演算に使用することができる。 Since the optical parallel computing element of the present invention can exchange light information with the adjacent optical cell, for example, it can be used for computations that search for an element that satisfies the condition of the sum of two sets. it can.
１１、３１ 光学セル
１２、３２ 隔壁
１３、３３ 底部
１４、３４ 光応答性物質
１５、３５ 光学窓
１６、３６ ミラー
11, 31 Optical cell 12, 32 Partition 13, 33 Bottom 14, 34 Photoresponsive material 15, 35 Optical window 16, 36 Mirror
Claims (5)
各光学セルは、上部に光の入射部を有するとともに、隔壁と底部で区画化された空間に、光の情報を受けたときに応答する光応答性物質を収容し、隔壁は規定波長以上の光は透過し規定波長未満の光は遮断する光学窓を有し、底部には上方から入射した光を反射して光学窓を介して隣接した光学セルに導くためのミラーが設けられ、
前記光応答性物質は、規定波長未満の第１の特定波長の光のみを照射したときには基底状態から励起状態に励起した後規定波長以上の第２の特定波長の光を発光しながら基底状態に失活し、第１の特定波長の光と第２の特定波長の光を同時に照射したときには誘導放出により第２の特定波長の強い光を発光するものであり、
各光学セルへの光照射を制御し、隣接する光学セルとの光の遣り取りを行うことにより、両光学セル間のアナログ演算を行うことを特徴とする光並列演算素子。 A plurality of optical cells provided adjacent to each other;
Each optical cell has a light incident part at the top, and contains a light-responsive substance that responds when receiving light information in a space partitioned by a partition and a bottom. There is an optical window that transmits light and blocks light below the specified wavelength, and a mirror is provided at the bottom for reflecting light incident from above and guiding it to an adjacent optical cell through the optical window,
When the photoresponsive substance is irradiated only with light having a first specific wavelength less than a specified wavelength, the photoresponsive substance is excited from the ground state to an excited state and then emits light having a second specific wavelength that is equal to or greater than the specified wavelength, and then enters the ground state. When deactivated and simultaneously irradiated with light of the first specific wavelength and light of the second specific wavelength, strong light of the second specific wavelength is emitted by stimulated emission,
An optical parallel computing element that performs analog computation between both optical cells by controlling light irradiation to each optical cell and exchanging light with an adjacent optical cell.
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