H01S3/213

Laser device and method for driving laser device
10340652 · 2019-07-02 · ·

A laser device according to the present invention may comprise: a pumping laser supply unit for emitting a pumping laser having a nano-second pulse width; and a laser output unit disposed at one side of the pumping laser supply unit and generating an output laser which is pumped by the pumping laser to have a nano-second pulse width corresponding to the pulse width of the pumping laser.

Acoustic modulated lasers

A laser whose emission is modulated by ultrasound is presented. The laser is usually micron-sized. In response to ultrasound modulation, the laser emission increases and decreases. Such a change in emission can be detected by external optical detectors. This type of laser can be used as a new type of imaging modality, in which laser emission in combination with sound waves or ultrasound waves, is used for imaging Laser emission has a much narrower spectral linewidth and stronger intensity than fluorescence and therefore is able to achieve higher sensitivity, whereas sound waves are used to provide a better spatial resolution of the laser emission from the laser. In ultrasound modulated laser based imaging, multiple lasers can be placed inside cells or tissues.

COMPOSITION

The invention provides light-emitting compositions, including lasing and fluorescent compositions. The invention particularly relates to programmable biological substrates, which fluoresce and/or lase, and which have a wide variety of different applications. The invention extends to use of the fluorescent compositions and lasing compositions comprising programmable biological substrates in fabricating lasers, and in various biological imaging applications, such as in assays.

COMPOSITION

The invention provides light-emitting compositions, including lasing and fluorescent compositions. The invention particularly relates to programmable biological substrates, which fluoresce and/or lase, and which have a wide variety of different applications. The invention extends to use of the fluorescent compositions and lasing compositions comprising programmable biological substrates in fabricating lasers, and in various biological imaging applications, such as in assays.

Sensor-compatible overlay

A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.

LOW-SPECKLE LIGHT SOURCE AND IMAGING DEVICES WITH MICRO-REFRACTIVE ELEMENT STABILIZED LASER ARRAY
20190094564 · 2019-03-28 ·

A light source for an imaging system. The light source includes a microresonator laser array having opposing mirrors arranged substantially parallel to one another. A laser gain medium is between the opposing mirrors. An array of microrefractive elements is arranged to stabilize the microresonator. A pump laser's output is shaped by a lens that directs it toward the micro-resonator laser array. An output lens directs a plurality of laser beams from the microresonator laser array to be incoherently combined at an object to be illuminated.

Fingerprint sensor-compatible overlay material

A fingerprint sensor-compatible overlay material which uses anisotropic conductive material to enable accurate imaging of a fingerprint through an overlay is disclosed. The anisotropic conductive material has increased conductivity in a direction orthogonal to the fingerprint sensor, increasing the capacitive coupling of the fingerprint to the sensor surface, allowing the fingerprint sensor to accurately image the fingerprint through the overlay. Methods for forming a fingerprint sensor-compatible overlay are also disclosed.

OLIVE OIL-TUNED BROADBAND CONJUGATED POLYMER LASER MEDIUM

The olive oil-tuned broadband conjugated polymer laser medium includes the conjugated polymer known as poly ((9,9-dihexyl-9H-fluorene-2,7-vinylene)-co-(1-methoxy-4-(2-ethylhexyloxy)-2,5-phenylenevinylene)) or Poly(FV-co-MEHPV) at a 90:10 mole ratio. The emission wavelength of the olive oil tuned broadband conjugated polymer laser can be reversibly tuned between 500 nm and 680 nm.

OLIVE OIL-TUNED BROADBAND CONJUGATED POLYMER LASER MEDIUM

The olive oil-tuned broadband conjugated polymer laser medium includes the conjugated polymer known as poly ((9,9-dihexyl-9H-fluorene-2,7-vinylene)-co-(1-methoxy-4-(2-ethylhexyloxy)-2,5-phenylenevinylene)) or Poly(FV-co-MEHPV) at a 90:10 mole ratio. The emission wavelength of the olive oil tuned broadband conjugated polymer laser can be reversibly tuned between 500 nm and 680 nm.

Random Lasing Photo-Curable Composition for Use as Random Lasing Gain Medium

The present invention relates to a random lasing photo-curable composition (1) for use as random lasing gain medium comprising:laser dye molecules (11);an optical glue (12) for the laser dye molecules to be suspended therein; wherein the optical glue is mercapto ester-based and comprises methacrylate and/or derivatives thereof. The present invention also relates to a random lasing system with a gain medium made of at least partially of random lasing photo-curable composition, and methods for manufacturing such random lasing system.