Ndezvipi zvinhu zvinokanganisa kureba kwewavelength yelaser?

Ndezvipi zvinhu zvinokanganisakureba kwechiedza chelaser?

Kureba kwehurefu hwelaserHazvina kutsanangurwa nechinhu chimwe chete, asi zvinotsanangurwa pamwe chete nekushanda kwaro kwepakati (mwaranzi inosimudzirwa) uye dhizaini chaiyo yechimiro. Pakati pacho panoenderana nechimiro chesimba chechinhu chinoshanda, uye zvinobatsirwawo uye zvinodzorwa nezvinhu zvakaita senzvimbo ine resonant uye nzira yekupomba.

Zvinhu zvinotevera zvinogona kukanganisa urefu hwemafungu e laser:

MaLaser akavakirwa pamhando dzakasiyana dzemaLaser media, dzakadai semagasi, zvinhu zvakasimba, masemiconductor kana mafiber e optical akagadzirwa. Laser medium yega yega ine hunhu hwakasiyana, hunogona kukanganisa kugona kwayo kuburitsa simba.

2. Chinhu chinobatsira pakuwana simba ndicho chinhu chinogadzira mwaranzi inomutswa mukati mesisitimu yelaserHunhu hwe gain medium (senge simba, electronic transitions uye band gaps) hunosarudza huwandu hwe wavelength hunogona kuwedzerwa.

3. Basa repombi nderekupa simba rekutanga kuti gain medium itange maitiro ekugadzira laser. Kureba kwewavelength yepombi kunokanganisa mamiriro ekukurudzira uye huwandu hwesimba regain medium, uye nekudaro zvine chekuita newavelength ye emission.

4. Mamwe ma laser ane michina yekugadzirisa inogona kugadzirisa wavelength yekubuda, nokudaro ichichinja wavelength yekubuda mukati mechikamu chakati.

5. Dhizaini ye laser resonator (kusanganisira magirazi nezvimwe zvikamu zve optical) ichakanganisa kusarudzwa kwe wavelength nekuchinja resonance mode uye phase interference conditions.

6. Zvinoita sekuti nonlinear optical effects (zvakadai se frequency doubling, sum kana difference generation, uye parametric processes) zvinogona kugadzira harmonics kana kugadzira wavelengths itsva idzo laser medium isingakwanise kugadzira zvakananga.

7. Zvinhu zvakaita setembiricha nekumanikidzwa zvinogonawo kukanganisawavelength yelaser, izvo zvinonyanya kuoneka mumagasi lasers. Mhedzisiro yekupisa pa gain medium inogona kukonzera kuchinja kwewavelength ye emission.

Muchidimbu, "kuona huwandu hwezvinhu zvinoshanda, kuisa kukosha kwakanangana kwenzvimbo ine resonant, uye kuona kuti inobuda pasi pemamiriro ekufadza" pamwe chete zvinosarudza magumo ekupedzisira emagetsi elaser.