摘要:
파장변환입자, 파장변환입자의 제조방법, 및 파장변환입자를 포함하는 발광 소자를 제공한다. 상기 파장변환입자는, 여기 광원으로부터 발생된 빛의 파장을 특정 파장으로 변환하는 유무기 하이브리드 페로브스카이트 나노결정을 포함한다. 이에 따라, 발광파장대의 변화없이 광학적으로 안정하고 색순도 및 발광성능이 향상될 수 있다.
摘要:
A light pulse source (100), being adapted for generating repetitive optical pulses, comprises a continuous wave (cw) laser (10) being arranged for providing cw laser light, an optical microresonator (20) being made of a resonator material, which has a third order (Kerr) nonlinearity and an anomalous resonator dispersion, wherein the cw laser (10) is arranged for coupling the cw laser light into the optical microresonator (20), which, at a predetermined relative detuning of the cw laser (10) and the optical microresonator (20), is capable of including a light field in a soliton state, wherein soliton shaped pulses can be coupled out of the optical microresonator (20) for providing the repetitive optical pulses, and a tuning device (30) being arranged for creating and maintaining the predetermined relative detuning of the cw laser (10) and the optical microresonator (20) based on a tuning time profile being selected in dependency on a thermal time constant of the optical microresonator (20) such that the soliton state is achieved in a thermal equilibrium state of the optical microresonator (20). Furthermore, a method of generating repetitive optical pulses is described based on soliton shaped pulses coupled out of an optical microresonator (20) is described.
摘要:
A mode-locked laser system operable at low temperature can include an annealed, frequency-conversion crystal and a housing to maintain an annealed condition of the crystal during standard operation at the low temperature. In one embodiment, the crystal can have an increased length. First beam shaping optics can be configured to focus a beam from a light source to an elliptical cross section at a beam waist located in or proximate to the crystal. A harmonic separation block can divide an output from the crystal into beams of different frequencies separated in space. In one embodiment, the mode-locked laser system can further include second beam shaping optics configured to convert an elliptical cross section of the desired frequency beam into a beam with a desired aspect ratio, such as a circular cross section.
摘要:
A mode-locked laser system operable at low temperature can include an annealed, frequency-conversion crystal and a housing to maintain an annealed condition of the crystal during standard operation at the low temperature. In one embodiment, the crystal can have an increased length. First beam shaping optics can be configured to focus a beam from a light source to an elliptical cross section at a beam waist located in or proximate to the crystal. A harmonic separation block can divide an output from the crystal into beams of different frequencies separated in space. In one embodiment, the mode-locked laser system can further include second beam shaping optics configured to convert an elliptical cross section of the desired frequency beam into a beam with a desired aspect ratio, such as a circular cross section.
摘要:
A composition of matter is provided having the general chemical formula K(H,D) 2 P( 16 O x , 18 O y ) 4 , where x 0.002, and x + y ≈ 1. Additionally, a method of fabricating an optical material by growth from solution is provided. The method includes providing a solution including a predetermined percentage of (H,D) 2 16 O and a predetermined percentage of (H,D) 2 18 O, providing a seed crystal, and supporting the seed crystal on a platform. The method also includes immersing the seed crystal in the solution and forming the optical material. The optical material has the general chemical formula K(H,D) 2 P( 16 O x , 18 O y ) 4 , where x 0.002, and x + y ≈ 1.
摘要翻译:提供具有化学通式K(H,D)2P(16-O)x的化合物的组合物, sub> 18 y 4 sub>,其中x&lt; 0.998或y> 0.002,并且x +y≈1。此外,提供了通过从溶液中生长来制造光学材料的方法。 该方法包括提供包含预定百分比的(H,D)2 16 O和预定百分比的(H,D)2 sub>的溶液 > 18 O,提供晶种,并将晶种支撑在平台上。 该方法还包括将晶种浸入溶液中并形成光学材料。 该光学材料具有化学通式K(H,D)2P(16)O X,18 X, O y 4 ,其中x < 0.998或y> 0.002,而x + y≈1。 p>
摘要:
A device (80,200,500) comprises a combination of a waveguide (92) and a grating (G1) arranged to provide a spectral reflectance (IR?/I1(?)), wherein the grating (G1) has a plurality of diffractive features (83) in a first region (REGB1) and in a second region (REGB2) such that: - in the first region (REGB1), the local average (?B,LA(z)) of the length (?B) of the period of the diffractive features (83) substantially increases with increasing distance (z) from an origin (ORIG), and - in the second region (REGB2), the local average (?B,LA(z)) of the length (?B) of the period of the diffractive features (83) substantially decreases with increasing distance (z) from an origin (ORIG), wherein the origin (ORIG) is located at an end of the device (80,200,500).