Short Wave Infraredsensor

While multiple sessions are usually required for all laser options, ND: YAG and diode lasers may prove more cost-effective in the long run due to longer-lasting results achieved with fewer overall sessions.

If cost is the primary concern or you want an at-home option, IPL may be a good choice as the upfront cost is typically lower compared to other lasers. However, results using IPL may take longer to achieve.

SWIR sensor

General recommendations may help those who know their skin and hair. The right laser choice depends on your individual skin and hair characteristics. Consultation with licensed laser technicians at your nearest laser hair removal clinics is necessary for laser selection. They can evaluate your Fitzpatrick skin type, examine hair color and texture, recommend the safest technology, and customize a treatment plan tailored to your needs.

InGaAs sensors are extremely sensitive, literally counting individual photons. Therefore, when built as sensor pixels, or focal plane arrays including thousands or millions of tiny point sensors, SWIR cameras can work in the darkest conditions. For instance, night vision goggles (that exists for several decades) operate by the sensing an amplification of reflected visible starlight  or alternative ambient light, in image intensification (I-Squared) tubes- a technology that succeeded for direct view night vision goggles. However, there’s no practical method without the introduction of reliability and sensitivity limitations when an image needs to be sent to a remote location (for example, an intelligence center). They are inherently suitable for standard storage or transmission techniques, because all SUI’s SWIR sensors convert light to electrical signals.

InGaAs cameras are essential since they can be small, use very little power, yet give big results. Since they’re sensitive to the light used in long distance fiber optics communications (usually around 1500 nm), early applications in the telecom industry were used by InGaAs. Telecom still uses InGaAs diodes and arrays, often in Optical Power Monitors that employ spectrometers operating in the SWIR band. Interesting capabilities surprisingly resulted from this combination. Covertly illuminating a scene viewed only with SWIR cameras becomes possible by using SWIR illumation like 1.55 micron lasers or LEDs. An example of the great value of SUI InGaAs cameras is a military truck able to temporarily illuminate its path when nightglow is not available (for instance, inside a tunnel or a road under thick tree branches)- to safely navigate a route in hostile territory. There are few restrictions on how such illuminators are used, since they’re eye-safe.

Thermalinfraredwavelength

As in all high-performance optical systems elimination of stray light is cardinal for SWIR system performance. This is especially important for systems operating in the SWIR regions because of the low intensity of the radiation to be collected and processed.

SWIR light is a reflective light, bouncing off objects a lot like visible light. Due to its reflective nature, SWIR light has shadows and contrast in its imagery. Visible images in resolution and detail are comparable to images from an InGaAs camera- but SWIR are not in color. Some of the tactical advantages of the SWIR are easily recognizable objects and individual identification.

Only the recent development of InGaAs sensors made the sensing of SWIR range (wavelength from 0.9 to 1.7 microns) practical. On top of single point light sensing diodes, InGaAs technology also produces one-dimensional linear arrays and two-dimensional focal plane array cameras. But why should we use SWIR?

Short Wave infraredwavelength

IPL hair removal works by emitting broadband pulses of light that target melanin, the pigment that gives hair its color. The light is absorbed by the melanin in the hair follicles which heats up and damages the follicles, causing slower hair growth over multiple sessions. IPL is less precise than laser treatments since it uses broader spectrum light.

Nd: YAG treatments is one of the most comfortable laser hair removal with minimal thermal injury from its deep wavelength

Long-waveinfrared

Intense Pulsed Light (IPL) hair removal is a widely used method for reducing unwanted hair through the application of non-coherent broad-spectrum light. It is considered effective and safe, with a range of devices available for both in-office and home use.

Diode laser hair removal works by concentrating light directly on the melanin in hair follicles. This focused light causes heat damage directly to the hair follicles, reducing hair growth by up to 69% with fewer required sessions than IPL.

Nd: YAG laser hair removal is an established and effective method for reducing unwanted hair in different skin types, especially darker skin Fitzpatrick IV-V. It provides long-lasting results and possible permanent hair removal up to 73%. The treatment is generally safe with temporary mild side effects. Multiple sessions are usually needed to get optimal results.

For pale to olive skin tones, diode laser hair removal can be highly effective at reducing hair with fewer required treatments compared to IPL. Treatment using diode laser is generally safe for skin types I-III.

Diode laser is considered the most effective for permanent hair reduction and IPL is least effective due to its broader treatment mechanism

Vibrant Salon & Spa in Fredericton has all the leading laser technologies, Diode, Nd: YAG and Alexandrite laser. Our laser specialists examine patient skin and hair type to recommend the best permanent hair removal option for your individual needs. We use a Skintel melanin reader to accurately analyze skin tone. This allows us to choose the best laser device and offer a customized treatment plan for optimal results. Treatments are performed by highly skilled professionals in a relaxing, private setting. Book your laser hair removal session at one of the best hair removal clinics and enjoy hair-free skin forever.

Diode laser hair removal is an effective and safe method for long-term hair reduction. It has been shown to work well for many skin types. The settings can be adjusted to balance the effectiveness of hair removal while maintaining patient comfort.

Are there other cameras operating in SWIR range? Indeed, sensors constructed from materials like mercury cadmium telluride (HgCdTe) or indium antimonite (InSb) are often very sensitive in the SWIR band. However, these cameras must be mechanically cooled, often to extremely low temperatures, in order to increase their signal-to-noise ratio to usable levels. Cooling is no problem in large military aircraft designed for surveillance and reconnaissance, since these platforms are designed with plenty of space and power to run mechanical cooling systems. Alternatively, similar sensitivity can be achieved with an InGaAs camera at room temperatures.

Sick of waxing only to see hair grow back? Laser hair removal offers long-lasting results when done correctly for your skin. But with IPL, diode, and Nd: YAG technologies, which is best? This guide compares how each laser interacts with melanin for safe, effective hair reduction. Understand the pros and risks so you can choose the treatment with minimal discomfort and the best results.

SWIR wavelength range

Black light absorbing coatings are critically important in the SWIR region in this context where Acktar best-in-the-industry coatings excel and exhibit unique light absorbing capability.

Individuals with darker skin complexions seeking the safest laser option should consider Nd: YAG hair removal. It stands out for its ability to treat pigmented skin with minimal risk of side effects. Nd: YAG laser is the best choice for skin types IV-V.

Short wave infraredcamera

This laser technology is best for people with lighter skin who have darker hair colors like brown and black. Since it uses broader spectrum light, there is a higher risk of unwanted light absorption by melanin in the skin for those with darker complexions. This can lead to side effects like discomfort, irritation and hyperpigmentation. IPL may require more sessions to see the best results due to its less precise action.

In order to understand, we need to know a basic fact: light in SWIR band is invisible to the human eye. The visibility spectrum extends only from wavelengths of 0.4 microns (blue, nearly ultraviolet to the eye) to 0.7 microns (deep red). Any wavelengths longer than the visible ones can only be seen by sensors such as InGaAs. However, despite its invisibility to the eye, the light in SWIR region interacts with objects similarly to visible wavelengths.

Another major benefit of SWIR imaging, unmatched by other technologies, is the ability of image through glass. Cameras use conventional, cost-effective visible camera lenses for all, except the most demanding applications, In SWIR cameras, environmentally hardened housings and special expensive lensing are largely unnecessary- enabling them for a vast variety of industries and applications. This also allows SWIR cameras to be mounted inside protective windows, to provide extra flexibility whenever the camera system is positioned on a potential platform.

Short Wave infraredvs nearinfrared

Do you have a question? Our experts will be happy to hear from you and advise you on the best product for you. Contact Us.

Nd: YAG delivers a longer 1064nm infrared wavelength to the hair follicles. This deeper penetrating light targets melanin more selectively than other lasers. It has a lower risk of side effects for darker skin tones due to reduced melanin absorption in the skin compared to shorter wavelengths. Treatment is generally more comfortable and safer compared to other lasers with minimal discomfort.

Diode laser treatment is generally suitable for skin types I through III. It is most effective on darker hair such as black, brown and dark blond. By precisely targeting only the melanin in the hair with an 810nm or 940nm wavelength, less energy is absorbed into the surrounding skin.

The use of SWIR at night has additional major advantage. The atmospheric phenomenon known as night sky radiance emits 5 to 7 time more illumination than starlight, almost entirely in SWIR wavelengths. “Seeing” objects with great clarity on moonless nights and sharing these images across networks is enabled with a SWIR camera and night radiance (AKA nightglow) unlike other imaging device does.

Consulting a laser hair removal expert is the ideal step to determining the right technology and customized treatment plan for long-lasting hair reduction. With the right laser choice and proper technique, you can bid unwanted hair goodbye for good.