An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.

An object information acquiring apparatus is used which includes: a laser medium; a temperature controlling unit for controlling a temperature of the laser medium; an excitation unit for exciting the laser medium; a control unit for controlling the temperature controlling unit and the excitation unit; a probe for receiving acoustic waves that are generated when an object is irradiated with a laser beam from the laser medium; and a processing unit for acquiring characteristic information relating to the object from the acoustic waves, wherein the control unit does not operate the excitation unit until the temperature of the laser medium falls within a predetermined range.

The disclosed invention relates to a pulsed iodine laser apparatus. The laser apparatus has a flashlamp-pumped iodine laser oscillator which produces a laser pulse with a full pulse width of longer than 1 microsecond, and a COIL amplifier. The laser apparatus may has a controller which controls the timing of injecting chlorine gas contained in a high-pressure chlorine tank into the singlet oxygen generator by outputting an open/close signal of the valve V2, and the timing of injecting iodine molecules contained in a iodine molecule tank into an amplifier chamber of the COIL amplifier.

The disclosed invention relates to a pulsed iodine laser apparatus. The laser apparatus has a flashlamp-pumped iodine laser oscillator which produces a laser pulse with a full pulse width of longer than 1 microsecond, and a COIL amplifier. The laser apparatus may has a controller which controls the timing of injecting chlorine gas contained in a high-pressure chlorine tank into the singlet oxygen generator by outputting an open/close signal of the valve V2, and the timing of injecting iodine molecules contained in a iodine molecule tank into an amplifier chamber of the COIL amplifier.

In a laser device and a photoacoustic measurement device including the laser device, the intensity of light at each wavelength made independently controllable. The laser device includes a laser medium which has oscillation wavelengths at a first wavelength and a second wavelength with higher light emission efficiency than at the first wavelength, an excitation section, a first resonator, a second resonator, a Q-value change unit, and a control section. The control section oscillates light having the first wavelength through Q switching when a first delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the first wavelength, and oscillates light having the second wavelength through Q switching when a second delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the second wavelength.

In a laser device and a photoacoustic measurement device including the laser device, the intensity of light at each wavelength made independently controllable. The laser device includes a laser medium which has oscillation wavelengths at a first wavelength and a second wavelength with higher light emission efficiency than at the first wavelength, an excitation section, a first resonator, a second resonator, a Q-value change unit, and a control section. The control section oscillates light having the first wavelength through Q switching when a first delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the first wavelength, and oscillates light having the second wavelength through Q switching when a second delay time has elapsed after the excitation of the laser medium has been started in a case where the oscillation wavelength is the second wavelength.

In various embodiments, an emission source may be provided. The emission source may also include a gain medium including a halide semiconductor material. The emission source may further include a pump source configured to provide energy to the gain medium. The halide semiconductor material may include a lead-free perovskite material.

Provided is an apparatus for acquiring object information, the apparatus including: first and second laser output unit outputting first and second pulsed laser; a laser controlling unit configured to control each laser output unit; a first or second detecting unit configured to detect an emission timing of laser and output a first or second detection signal; a probe configured to receive an acoustic wave from an object being irradiated with the laser; and a signal processing unit configured to acquire specific information of the object, based on the acoustic wave. The laser controlling unit controls output of at least one of the laser output units so as to decrease a time difference between subsequent first and second pulsed lasers to be output.

Provided is an apparatus for acquiring object information, the apparatus including: first and second laser output unit outputting first and second pulsed laser; a laser controlling unit configured to control each laser output unit; a first or second detecting unit configured to detect an emission timing of laser and output a first or second detection signal; a probe configured to receive an acoustic wave from an object being irradiated with the laser; and a signal processing unit configured to acquire specific information of the object, based on the acoustic wave. The laser controlling unit controls output of at least one of the laser output units so as to decrease a time difference between subsequent first and second pulsed lasers to be output.

A power supply and circuitry system for powering HVPT devices includes a power supply circuit that selectively provides an operating power and a simmer power to multiple HVPT devices. The system also includes a trigger circuit for each respective HVPT device that selectively couples the power supply circuit to one HVPT device to provide the operating power thereto. The system also includes a simmer control circuit for selectively coupling the power supply circuit to the HVPT devices to provide the simmer power thereto, the simmer control circuit further including a simmer switch circuit for each HVPT device, wherein each simmer switch circuit comprises an input coupled to the power supply circuit to receive the simmer power therefrom and an output coupled to one HVPT device. The simmer control circuit also further includes a simmer drive circuit coupled to each simmer switch circuit for selectively enabling the simmer switch circuits.