Abstract: An optical recoding carrier and an information recording method applying an amplitude shift keying (ASK) method or further a DC-biased ASK method are provided, wherein at least one periodically undulated section and at least one non-periodically undulated section are formed on the optical recording carrier to indicate specific information. The information recording method can be embodied as an addressing method of an optical disk for recording address information of tracks of the optical disk. A continuous track structure is provided on the optical recording carrier to save the available recording space and improve the information reading precision of the optical recording carrier. Furthermore, a signal generating apparatus and an information reading apparatus applied in the information recording method are provided.

Abstract: An optical pickup head and an electromagnetic actuating device thereof are provided. The electromagnetic actuating device is used to move an objective lens carrier having an objective lens assembly to form an optical pickup head. The electromagnetic actuating device includes at least a magnet, at least a coil, and at least a yoke. The magnet is spaced apart from the objective lens carrier by a distance, and the coil is disposed at the objective lens carrier, for generating an electromagnetic force to interact with the magnet. The yoke is spaced apart from the objective lens carrier by a distance, in which the yoke has a protruding part that extends towards the objective lens carrier and is used to attract magnetic flux lines produced by the magnet, and thus making the magnetic flux that passes through the coil be distributed evenly.

Abstract: A coatable inorganic material is provided, which is suitable for being coated on a substrate in the form of sol-gel solution and then being directly written with thermochemical mode by using a laser beam. The coatable inorganic material is an oxide, in which the chemical element constitution is more than one element selected from Te, Al, Zr, and Ti.

Abstract: An optical storage system for storing data in an optical medium comprises an initial light source, a first sheet, a light modulator and a second sheet. The initial light source provides an initial light beam. The first sheet comprises a first surface and a second surface, wherein the initial light beam is partially reflected on the first surface to act as a reference beam, and the initial light beam partially passes the first surface, reflected on the second surface to act as a signal beam. The light modulator provides a pattern, wherein the signal beam contacts the light modulator. The second sheet comprises a third surface and a fourth surface, wherein the reference beam is reflected toward the optical medium on the third surface, the signal beam is reflected toward the optical medium on the fourth surface, and the reference beam and the signal beam interfere with each other to store the pattern into the optical medium.

Abstract: Indolestyryl compounds and use thereof for a high density recording media and method for fabricating the same. The indolestyryl compounds exhibit strong absorbance in the visible light region (400˜700 nm) of the spectrum, resistance to heat and light, high light sensitivity, and excellent solubility, resulting from their special chemical configuration. Furthermore, the indolestyryl compounds can be used as recording layer materials in high density recording media for matching a reading laser wavelength and enhancing the reflective index and carrier-to-noise ratio (CNR) of the high density recording media. Accordingly, the recording sensitivity and the readout characteristics of high density recording media comprising the indolestyryl compound according to the present invention can be improved.

Abstract: A method for measuring a surface structure of a near-field object is provided. A light source produces at least a first light beam and a second light beam; guiding the first light beam and the second light beam to enter the SIL for interacting with the object surface. This method can be used in, for example, a near-field optical disc storage system, wherein reflection intensities of the first and second light beams are used to measure two distances between the SIL and the optical disc at two positions corresponding to the first and second light beams. A surface structure, such as a tilt angle or an average distance between the disc and the SIL or disc roughness, is obtained by analyzing the above-mentioned positions and distances. The first and second light beams are produced, for example, by a diffraction technology or by a single laser diode with multiple beams.

Abstract: An indolestyryl compound. The indolestyryl compound has formula (I): wherein Z1 comprises benzene, naphthalene, or heterocyclic ring containing O, S, or N, R2 comprises H, halogen atoms, C1-5 alkyl, nitro, ester, carboxyl, sulfo, sulfonamide, sulfuric ester, amide, C1-3 alkoxy, amino, alkylamino, cyano, C1-6 alkylsulfonyl, or C2-7 alkoxy carbonyl, R3, R4, R5, and R6 comprise H, alkyl, aralkyl, or heterocyclic ring containing O, S, or N, R7 and R8 comprise H or alkyl, R10 comprises H, alkyl, halogen atoms, nitro, hydroxyl, amino, ester, or substituted or non-substituted sulfonyl, W comprises carbon or nitrogen, Y comprises carbon, oxygen, sulfur, selenium, —NR, or —C(CH3)2, m is 1˜3, and X1 comprises an anionic group or an anionic organometallic complex, wherein R3 and R4 are joined to a nitrogen atom or R5 and R6 are joined together to form a ring, and R bonded to nitrogen is C1-5 alkyl.

Abstract: A recording layer including a novel dye for a high density optical recording medium, employing short wavelength laser source with a wavelength no longer than 530 nm 530 nm for recording high density information and reproduction/playback of the high density information recordings, is provided.

Abstract: A recording layer including a novel dye for a high density optical recording medium, employing short wavelength laser source with a wavelength no longer than 530 nm for recording high density information and reproduction/playback of the high density information recordings, is provided. The dye incorporated in the recording layer has the following general chemical structural formula (I).

Abstract: A system and method for recording and reproducing holographic interferogram with servo is provided. A servo process is provided by the system and method to continuously recording a holographic interferogram in a holographic recording medium with servo trace layers. By the servo process, reproducing signals are captured rapidly and correctly. Also, by the servo process, the intensity distribution of a reference beam is monitored, which is reflected by a reflecting mirror disposed on the other side of the holographic recording medium and transmits the holographic recording medium. By analyzing the distribution, one can adjust the distance and the incidence angle between the reflection mirror and the reference beam. Moreover, a plurality of servo tracks at different layer is provided for recording the holographic interferogram at different layers of holographic recording medium.

Abstract: A system and a method for holographic storage mainly involve forming a holographic interference pattern in a holographic recording medium. The holographic storage system utilizes a light source to emit a coherent beam. The coherent beam is irradiated to a first reflector to form a divergent beam. The divergent beam is then irradiated to a second reflector to form collimating beams (a signal beam and a reference beam). The signal beam goes through a spatial light modulator (SLM) and is modulated by the SLM. After that, the reference beam and the modulated signal beam are irradiated to a convergent unit, and are directed to the holographic recording medium for forming the holographic interference pattern. The holographic storage system that the light source is split into a signal beam and a reference beam by a set of reflectors according to the reflection principle without involving refraction may employ wavelength multiplexing.

Abstract: A holographic storage and reproduction system and method with a servo are provided, wherein a servo mechanism is provided, such that the holographic interferogram is continuiously stored in the holographic recording medium. When a reproduced signal is to be obtained, it can be retrieved quickly and accurately through the servo mechanism. Also, the intensity distribution of the reference light reflected by the holographic recording medium can be monitored and controlled, such that the relative distance and oblique angle between the storage and reproduction system and the holographic recording medium are analyzed and adjusted.

Abstract: A fluorescent dye, a structure of a fluorescent storage media and method using thereof, are disclosed. The fluorescent dye of the present invention comprises an organic violet fluorescent compound having a chemical structure (I) is suitable for using a short wavelength laser having a wavelength less than 500 nm as an excitation source. When a short wavelength laser is used for exciting the organic violet fluorescent compound (I), a fluorescence having an emission wavelength larger than 500 nm is induced, and a reading signal can be provided by detecting the intensity of the fluorescence radiation.

Abstract: A vibration absorber provided on an optical disk drive module of a disk drive for suppressing vibration produced by the optical disk drive module at various speeds. The vibration absorber at least has a body, dampers, elastic members, an actuator and a controller. The body is secured on the optical disk drive module. The dampers elastically and vertically shift on the body. The elastic members are provided on the body for providing elasticity in shifting of the damper. The actuator is provided on the body and coupled to the damper for providing a driving force for the vertical shifting of the damper. The controller controls the driving force outputted by the actuator based on the change in rotational speed of the optical disk drive module, so as to change the elasticity in vertical shifting of the damper to reduce the shifting and corresponding vibration of the optical disk drive module.

Abstract: The present invention relates to an optical recording medium including a substrate and a recording layer having a bi-metal film layer structure formed on a surface of the substrate. The recording layer includes a first metal recording layer of a Ge metal thin film and a second metal recording layer of an Au metal thin film. The bi-metal film layer structure can be formed by sputtering, which is therefore compatible with a conventional disc process. In the optical recording medium, a write area of the recording layer is heated by laser irradiation to reach an eutectic point and melted to form alloy. A write recording point can be distinguished by telling a difference in reflectance between the alloy area and the non-reacted metal area, and thus may be used in both a low-speed recording and a high-speed recording, and can be used in FVD and blue ray DVD recorder.

Abstract: A recording media data structure includes a first recording layer having a lead-in area, a first user region successive to a physical sector of the lead-in area and for storing user data, and a first jump region successive to a physical sector of the first user region; a second recording layer stacked on the first recording layer, the second recording layer having a second jump region, a second user region successive to a physical sector of the second jump region and for storing user data, and a guide-out region successive to a physical sector of the second user region; wherein the lead-in area, the first jump region, the second jump region and the guide-out region each have a constant number of physical sectors, and the second jump region has a beginning physical sector successive to an ending physical sector of the first jump region.

Abstract: A recording layer including a novel dye for a high density optical recording medium, employing short wavelength laser source with a wavelength no longer than 530 nm 530 nm for recording high density information and reproduction/playback of the high density information recordings, is provided.

Abstract: The present invention relates to a polymethine complex and an optical recording medium using said polymethine complex. Through using the polymethine complex formed by combining a polymethine cation with a heat-inhibiting anion as the optical recording material in the optical recording medium, not only the heat inference caused by thermal decomposition of the dyes during high speed optical recording can be reduced or avoided, but also absorption coefficient, sensitivity and recording speed in the region of ultraviolet and visible light of 300˜800 nm wavelength can be increased. The optical recording medium according to the present invention can achieve high-speed writing and reading with Pi errors less than 280 in case that the reflective layer of the optical recording medium has a minimal thickness of 50 nm.

Abstract: A bisstyryl compound. The bisstyryl compound has formula (I): wherein Z1 and Z2 are benzene, naphthalene, or heterocyclic ring, R1 is H, C1-5 alkyl, hydroxyl, halogen atoms, or alkoxy, R2 is H, halogen atoms, C1-5 alkyl, nitro, ester, carboxyl, sulfo, sulfonamide, sulfuric ester, amide, C1-3 alkoxy, amino, alkylamino, cyano, C1-6 alkylsulfonyl, or C2-7 alkoxy carbonyl, R3, R4, R5, and R6 are H, halogen atoms, alkyl, aralkyl, or heterocyclic ring containing O, S, or N, or R3 and R4 are joined to a nitrogen atom or R5 and R6 are joined together to form a ring, R7 and R8 are H or alkyl, W is nitrogen with or without Z1 and Z2 or aromatic group without Z1 and Z2, Y is carbon, oxygen, sulfur, selenium, —NR, or —C(CH3)2, m is 1-3, n is 1-18, and X1 and X2 are anionic groups or anionic organometallic complexes.

Abstract: A compound used as storage medium of high-density optical disc is disclosed, which has structure represented as following formula: wherein each A1, A2, A3, and A4 independently is selectively substituted aryl or heteroaryl, said aryl or heteroaryl is selectively substituted by one or multiple functional groups; R1 and R2 independently is H, halogen, alkyl or aryl; B is Ar or n is an integral ranging from 1 to 4; and n? is an integral ranging from 0 to 4.